FAQs
Why does there sometimes appear to be less matrices in the pack then what is specified?
A.
Every SuperCurve matrix is made precisely and exactly. For that reason they are a perfect fit for each other and can nestle together, and it is possible you will take two without realizing it. To help prevent this, shake or tap the box before selecting a matrix.
Q.
Sometimes when I place the V3 Ring on the SuperCurve matrix, the ring and matrix slip up the tooth. How can I prevent that?
A.
This is most likely to occur on the buccal of lower molars and lingual of upper molars. If it happens, try placing the ring mesially instead of distally. Otherwise, wedge from both sides with Wave-Wedges or use the hard V-Wedge to secure the matrix. It’s a good idea to push down on the ring immediately after placement while it is still in the forceps to make sure the ring is fully seated on the undercuts, and keep your finger firmly against the matrix tab until you have released the forceps to ensure there is no slippage.
Q.
Q.
Q.
Do V3 Rings produce tight contacts?
A.
Yes. Experts agree that Triodent sectional matrix systems – using the V3 Ring or the V-Ring - are the surest way to achieve tight contacts since the lateral spring pressure acts like a McKean orthodontic tooth separator.¹A V3 Ring IS a sectional matrix. The only functional differences between the V-Ring system and other sectional matrices are:
Dental Clinics of North America, Vol 45, # 1, Jan 2001, p87.
Q.
- The V3 Ring is particularly good at holding the matrix in a full anatomical curve.
- The V3 Ring traps the matrix on the shoulders of the tooth and prevents it slipping and moving away from the neighboring contact point
- The V3 Ring spring is made from nickel-titanium (NiTi) and is very resilient.
- The V3 Ring spans wide cavities.
- The retention is better.
- The tooth separation is better as the lateral force of the spring is greater.
Dental Clinics of North America, Vol 45, # 1, Jan 2001, p87.
Can V3 Rings be used on wide cavities?
A.
Yes. The anatomically-shaped tines grip on both adjacent teeth and this prevents the spring from falling into wide cavity preps (like other sectional matrices).
Dr Jason Smithson's Wide Box Clinical Case demonstrates this.
Q.
Dr Jason Smithson's Wide Box Clinical Case demonstrates this.
Can V3 Rings be used when a cusp is missing?
A.
Yes. Since the tines grip on both teeth on each side of the contact and also low down near the gingival margin, a V3 Ring can often be used when a cusp is missing. Depending on the anatomy, it is sometimes best to build up the bulk of the cusp before placing the V3 Ring.
Have a look at Missing Cusp Clinical Case by Dr Graeme Milicich.
Q.
Have a look at Missing Cusp Clinical Case by Dr Graeme Milicich.
Can V3 Rings be used on primary teeth?
A.
Yes. The V3 Ring comes in two sizes – Universal (green) for molars and Narrow (yellow) for premolars and primary teeth.
Q.
What degree of separation is achieved with the V3 Ring?
A.
The ring will create a separation of 60-80 microns. This is greater than the thickness of two Triodent matrices and is sufficient separation to restore two adjacent Class II cavities at the same time.
Can V3 Rings be sterilized and re-used?
A.
Yes. They are designed for re-use and have been tested successfully through 800 autoclave cycles. The rings should be steam-autoclaved, maximum temperature 135°C. Other methods of sterilization run the risk of damaging or staining the rings. Chemical sterilization will void our warranty.
Q.
How do I get bonding agent off the V3 Ring?
A.
If your V3 Ring has been contaminated with bonding agent, soak it in alcohol for a few minutes to soften the bonding agent before ultrasonic cleaning and steam autoclaving. You will then be able to scrape it off. A light smear of Vaseline (petroleum jelly) before use will help prevent contamination.
Q.
How can the extra cost of V3 Rings be justified?
A.
V3 Rings are not much more expensive than other competing systems and they produce better results with less frustration and time spent. They are also made of NiTi and glass-fiber reinforced plastic, which lasts longer. The cost of the consumable V3 Tab-Matrix is similar to other sectional matrix bands. In addition, think how much it costs you every time you have to re-do a proximal restoration because it has a poor contact. If you try to re-do it right away you run late and get stressed out. If you do it later the patient “bad-mouths” you because they think you are incompetent. You lose credibility and waste more time with more costs and no income when you do have to re-do it! Arrrgh!
Q.
Do V3 Rings work equally well on all teeth?
A.
The V3 Ring is a very versatile system and no other matrix system comes close in this respect.
Q.
Do I have to hold the contact point with a burnisher while light curing? Could I use a regular matrix and hold the contact and then why would I need a V3 Ring?
A.
Dr McDonald always does this because it is so easy to do and avoids the bad contact caused by the matrix not being in contact with the neighboring tooth. Quite often it is impossible to see if the matrix is actually touching, so holding is just a precaution. Dr McDonald believes this issue is the single main cause of REALLY bad contacts. The V3 Ring's function is to separate the teeth (orthodontically) and wrap the matrix.
A regular matrix (Tofflemire) when used on a Class II has the effect of moving the tooth in the wrong direction by the thickness of the matrix (because you have to get the matrix through the intact side). This means that you have to overcome TWO thicknesses of matrix to get a tight contact. Tofflemires also tend to produce cylindrical, “tin can”, restorations with a poor contour and a contact just at the marginal ridge. This method has been found to be unpredictable by most who have tried it.
Q.
A regular matrix (Tofflemire) when used on a Class II has the effect of moving the tooth in the wrong direction by the thickness of the matrix (because you have to get the matrix through the intact side). This means that you have to overcome TWO thicknesses of matrix to get a tight contact. Tofflemires also tend to produce cylindrical, “tin can”, restorations with a poor contour and a contact just at the marginal ridge. This method has been found to be unpredictable by most who have tried it.
Which style of clamp should I use to hold the rubber dam in place?
A.
The clamped tooth should be further distal than the one being restored. If that is not possible, then a small clamp can provide more room for the V3 Ring. Often there is room for both the clamp and the V3 Ring.
See Contours for Direct Resin Restorations by Dr Gregori Kurtzman and DO Cavity on Lower Second Premolar by Dr Andreas Hugenberg for examples.
Q.
See Contours for Direct Resin Restorations by Dr Gregori Kurtzman and DO Cavity on Lower Second Premolar by Dr Andreas Hugenberg for examples.
Does the V3 Ring work if you are doing three teeth in a row i.e. #12DO, #13MOD, and #14MOL?
A.
Dr McDonald prefers to prep all at once, place the matrices on all teeth then place composite initial layers on all three teeth. Then he finishes layering 12 and 14 and pulls off the matrix on 12 and 14. Next he pushes the wedge in farther between 12-13 and 13-14, burnishes the contact on M and D of 13 and places the final layer on 13. Then he finishes all three at the same time.
Check out Dr Jason Smithson's Quadrant Dentistry Clinical Case and Dr Gregori Kurtzman's Contours for Direct Resin Restorations Clinical Case which shows an example of this.
Q.
Check out Dr Jason Smithson's Quadrant Dentistry Clinical Case and Dr Gregori Kurtzman's Contours for Direct Resin Restorations Clinical Case which shows an example of this.
With the V3 Ring is it best to do them all separately start to finish or would you do 12 and 14 together and then 13 by itself?
A.
Yes you can do all four in a row if you want. You just need to make sure that the V3 Ring is separating the contact you are working on. You can move the V3 Ring along as you work, or stack rings. Dr McDonald prefers to use just one V3 Ring as it allows that embrasure to open rather than the retainer rings working against each other. Although he builds one contact at a time, he etches, bonds and places bands and/or matrices all at once.
Q.
The V3 Ring is a small piece of equipment to put in the patient's mouth. What if it springs out or is dropped?
A.
The V3 Ring is very stable on wet or dry teeth because of its strength and anatomically shaped faces. However, for added security tie floss to the ring.
Q.
How do I retension the V3 Ring if the tines start to separate?
A.
We use NiTi in our rings. It has remarkable strength and elasticity, so the ring will return to its original shape again and again. The V3 Ring may separate slightly over time with over-stretching, but can be easily retensioned by placing it in the notches in the handles of the Triodent Forceps. Squeeze it like a nutcracker until the tines touch and the ring is as good as new. To prevent over-stretching, only open the ring as far as is needed to place it over the tooth. Also, try not to leave the ring open in the forceps for a long period of time.
Q.
Can V3 Rings be used on MOD's?
A.
V3 Rings work really well on single Class II restorations and MOD's. You can stack the V3 Rings or have one facing mesially and the other distally. The ring tilts up, away from the marginal ridge of the tooth, allowing more room for another ring to be placed underneath, on the next tooth. In most cases it is advisable to place the rings in opposite directions.
See Contours for Direct resin Restorations by Dr Gregori Kurtzman.
Q.
See Contours for Direct resin Restorations by Dr Gregori Kurtzman.
What's the best way to restore a back-to-back MO or DO?
A.
The easiest method for back-to-back Class II restorations is to complete one and then do the other. Doing both simultaneously can be faster but requires more operator skill. A Narrow (yellow) V3 Ring is recommended as more separation is necessary to overcome two thicknesses of matrix.
Q.
What is the best way to restore an MOD with the V3 Ring?
A.
The recommended method is as follows:
Q.
- Pre-wedge both M and D and complete cavity preparation.
- Slide M and D matrix into position and etch and bond.
- Place V3 Ring on M and build and cure M contact point.
- Move V3 Ring to D and build and cure D contact point.
- Complete occlusal surface and cure with C-Factor issues in mind.
What is the best way to remove the matrix band when it's in a tight contact area and stuck to the composite?
A.
Push a thin, metal-blade instrument like a probe through the embrasure below the contact point to break the bond. Some clinicians also recommend flossing between the restoration and the band.
Q.
Can I place the Wave-Wedge with the V3 Ring in place?
A.
Yes. The V-shaped tines of the V3 Ring allow you to place a wedge without removing the ring. And because the Wave-Wedge has a hollow underside, you can slide a second wedge from the opposite side to the first.
Q.
When doing an MOD, the matrix band side extrusions are too long and get in the way of the opposing matrix band?
A.
The easy way around this is to place a V3 Ring on the first tooth, trapping the matrix band in place, then bend the protruding ends of the matrix backwards to make room for placement of another band on the opposite side of the restoration.
Review Dr Graeme Milicich's Contact Points for further information.
Q.
Review Dr Graeme Milicich's Contact Points for further information.
What are the differences between the V3 Ring and the V-Ring?
A.
The main differences are:
- The V-Ring spring is made from nickel-titanium and stainless steel while the V3 Ring spring is made entirely from nickel-titanium. The spring is substantially stronger and, with the Narrow (yellow) ring, the range of action is wider with the V3. Because the V3 Ring does not have stainless steel, it will not expand over time to the extent of rings containing stainless steel.
- The V3 Ring tines are made from glass-fiber reinforced plastic and are shaped to suit the buccal and lingual surfaces of the teeth, slightly more so than with the V-Ring.
- The spring angle on the V3 Ring is steeper relative to the occlusal plane, making stacking easier for simultaneous multiple restorations.
- The tines in the V3 Ring have special grooves that make them more stable in Triodent Forceps. They also fit rubber dam forceps, so there is no need to buy new instruments.
Which style of rubber dam clamp should I use on, for example, a #30, that will not interfere with the V3 Ring?
A.
Firstly, it is usually better to use a wingless clamp, say a W3 or W7, but there are other options to consider, like an 8a or a serrated premolar clamp. Yet another thing to try is to use a normal clamp, rotated slightly, on the #31.
Q.
Sometimes when I place the V3 Ring on the SuperCurve matrix, the ring and matrix slip up the tooth. How can I prevent that?
A.
This is most likely to occur on the buccal of lower molars and lingual of upper molars. If it happens, try placing the ring mesially instead of distally. Otherwise, wedge from both sides with Wave-Wedges or use the hard V-Wedge to secure the matrix. It’s a good idea to push down on the ring immediately after placement while it is still in the forceps to make sure the ring is fully seated on the undercuts, and keep your finger firmly against the matrix tab until you have released the forceps to ensure there is no slippage.
The V3 Blue ring is clinically the same as the V3 nickel-titanium ring, designed to replicate the performance of the metal V3 but obviously with nothing like the durability. For general clinical questions about the V3 Blue, please refer to the V3 Sectional Matrix System FAQs. Except in one or two areas like retensioning, the same advice applies.
Can I autoclave the V3 Blue?
A.
The V3 Blue can be autoclaved but we recommend it for single use only.
Top of Page
Q.
Can I use my existing impression materials?
A.
Yes, no problems.
Q.
How long will a tray last?
A.
The stainless steel trays will provide many years of accurate impressions.
Q.
Where do I buy the trays and inserts?
A.
Trays and inserts can be purchased from ourselves or from your lab at the same price.
Q.
Can I have my practice name on the trays?
A.
Yes. The trays can be laser-etched.
Q.
Can I make temporaries?
A.
The unique insert design allows you to use the tray multiple times but also remove the insert and impression to keep in case a temporary crown is lost and another casting is needed.
Q.
How easy is the tray to clean?
A.
Your dental assistant will be able to clean each tray of all impression materials in less than 15 seconds to be ready for placement in the autoclave.
Q.
Do I need to use adhesives?
A.
Generally, no. The unique design of the tray walls locks in the impression material, so adhesive is not essential, effectively reducing further time and material costs.
Q.
Can I use it with my CAD/CAM system?
A.
Triotray Pro makes a perfect high-quality complement to CAD/CAM systems for any work that is difficult to scan or needs scanning outside the mouth.
Q.
How long will the 50 inserts in my 10-tray kit last?
A.
Based on 4-5 impressions per week, refills will be required after about three months.
Q.
Q.
Q.
Do V-Rings produce tight contacts?
A.
Yes. Experts agree that Triodent sectional matrix systems – using the V-Ring or the V3 Ring - are the surest way to achieve tight contacts since the lateral spring pressure acts like a McKean orthodontic tooth separator.¹ A V-Ring IS a sectional matrix. The only functional differences between the V-Ring system and other sectional matrices are:
¹ Dental Clinics of North America, Vol 45, # 1, Jan 2001, p87.
Q.
- The V-Ring is particularly good at holding the matrix in a full anatomical curve.
- The V-Ring traps the matrix on the shoulders of the tooth and prevents it slipping and moving away from the neighboring contact point
- The V-Ring spring is made from nickel-titanium (NiTi) and is very resilient.
- The V-Ring spans wide cavities.
- The retention is better.
- The tooth separation is better as the lateral force of the spring is greater.
¹ Dental Clinics of North America, Vol 45, # 1, Jan 2001, p87.
Can V-Rings be used on wide cavities?
A.
Yes. The anatomically-shaped tines grip on both adjacent teeth and this prevents the spring from falling into wide cavity preps (like other sectional matrices).
Q.
Can V-Rings be used when a cusp is missing?
A.
Yes. Since the tines grip on both teeth on each side of the contact and also low down near the gingival margin, a V-Ring can often be used when a cusp is missing. Depending on the anatomy, it is sometimes best to build up the bulk of the cusp before placing the V-Ring.
Q.
Can V-Rings be used on primary teeth?
A.
Yes. The V-Ring works surprisingly well on premolars and primary teeth.
Q.
What degree of separation is achieved with the V-Ring?
A.
The ring will create a separation of 60-80 microns. This is greater than the thickness of two Triodent matrices and is sufficient separation to restore two adjacent Class II cavities at the same time.
Can V-Rings be sterilized and re-used?
A.
Yes. They are designed for re-use and are fully autoclavable.
Q.
Can V-Rings be used on MODs?
A.
V-Rings work really well on single Class II restorations and MOD's. You can stack the V-Rings or have one facing mesially and the other distally. The ring tilts up, away from the marginal ridge of the tooth, allowing more room for another ring to be placed underneath, on the next tooth. In most cases it is advisable to place the rings in opposite directions. (See next two questions)
Q.
What's the best way to restore a back-to-back MO or DO?
A.
The easiest method for back-to-back Class II restorations is to complete one and then do the other. Doing both simultaneously can be faster but requires more operator skill.
Q.
What is the best way to restore an MOD with the V-Ring?
A.
The recommended method is as follows:
Q.
- Pre-wedge both M and D and complete cavity preparation.
- Slide M and D matrix into position and etch and bond.
- Place V-Ring on M and build and cure M contact point.
- Move V-Ring to D and build and cure D contact point.
- Complete occlusal surface and cure with C-Factor issues in mind.
How can the extra cost of V-Rings be justified?
A.
V-Rings are not much more expensive than other competing systems and they produce better results with less frustration and time spent. They are also made of NiTi, which lasts longer. The cost of the consumable V3 Tab-Matrix is similar to other sectional matrix bands. In addition, think how much it costs you every time you have to re-do a proximal restoration because it has a poor contact. If you try to re-do it right away you run late and get stressed out. If you do it later the patient “bad-mouths” you because they think you are incompetent. You lose credibility and waste more time with more costs and no income when you do have to re-do it! Arrrgh!
Q.
Do V-Rings work equally well on all teeth?
A.
The V-Ring is a very versatile system and no other matrix system comes close in this respect.
Q.
Do I have to hold the contact point with a burnisher while light curing? Could I use a regular matrix and hold the contact and then why would I need a V-Ring?
A.
Dr McDonald always does this because it is so easy to do and avoids the bad contact caused by the matrix not being in contact with the neighboring tooth. Quite often it is impossible to see if the matrix is actually touching, so holding is just a precaution. Dr McDonald believes this issue is the single main cause of REALLY bad contacts. The V-Ring's function is to separate the teeth (orthodontically) and wrap the matrix.
A regular matrix (Tofflemire) when used on a Class II has the effect of moving the tooth in the wrong direction by the thickness of the matrix (because you have to get the matrix through the intact side). This means that you have to overcome TWO thicknesses of matrix to get a tight contact. Tofflemires also tend to produce cylindrical, “tin can”, restorations with a poor contour and a contact just at the marginal ridge. This method has been found to be unpredictable by most who have tried it.
Q.
A regular matrix (Tofflemire) when used on a Class II has the effect of moving the tooth in the wrong direction by the thickness of the matrix (because you have to get the matrix through the intact side). This means that you have to overcome TWO thicknesses of matrix to get a tight contact. Tofflemires also tend to produce cylindrical, “tin can”, restorations with a poor contour and a contact just at the marginal ridge. This method has been found to be unpredictable by most who have tried it.
Which style of clamp should I use to hold the rubber dam in place?
A.
The clamped tooth should be further distal than the one being restored. If that is not possible, then a small clamp can provide more room for the V-Ring. Often there is room for both the clamp and the V-Ring.
Q.
Does the V-Ring work if you are doing three teeth in a row i.e. #12 DO, #13MOD, and #14MOL?
A.
Dr McDonald prefers to prep all at once, place the matrices on all teeth then place composite initial layers on all three teeth. Then he finishes layering 12 and 14 and pulls off the matrix on 12 and 14. Next he pushes the wedge in farther between 12-13 and 13-14, burnishes the contact on M and D of 13 and places the final layer on 13. Then he finishes all three at the same time.
Q.
With the V-Ring is it best to do them all separately start to finish or would you do 12 and 14 together and then 13 by itself?
A.
Yes you can do all four in a row if you want. You just need to make sure that the V-Ring is separating the contact you are working on. You can move the V-Ring along as you work, or stack rings. Dr McDonald prefers to use just one V-Ring as it allows that embrasure to open rather than the retainer rings working against each other. Although he builds one contact at a time, he etches, bonds and places bands and/or matrices all at once.
Q.
When doing an MOD, the matrix band side extrusions are too long and get in the way of the opposing matrix band?
A.
The easy way around this is to place the yellow V3 Ring on the tooth, trapping the matrix band in place, then bend the protruding ends of the matrix backwards to make room for the opposite matrix band.
Q.
The V-Ring is a small piece of equipment to put in the patient's mouth. What if it springs out or is dropped?
A.
The V-Ring is very stable on wet or dry teeth because of its strength and anatomically shaped faces. However, for added security tie floss to the ring.
Q.
How do I retension the V-Ring if the tines start to separate?
A.
We use NiTi in our rings. It has remarkable strength and elasticity, so the ring will return to its original shape again and again. The V-Ring may separate slightly over time with over-stretching, but can be easily retensioned by placing it in the grooves of the handle of the Triodent forceps. Squeeze it like a nutcracker until the tines touch and the ring is as good as new. To prevent over-stretching, only open the ring as far as is needed to place it over the tooth. Also, try not to leave the ring open in the forceps for a long period of time.
Q.
What is the best way to remove the matrix band when it's in a tight contact area and stuck to the composite?
A.
Push a thin, metal-blade instrument like a probe through the embrasure below the contact point to break the bond. Some clinicians also recommend flossing between the restoration and the band.
How do I get bonding agent off the V-Ring?
A.
If your V-Ring has been contaminated with bonding agent, soak it in alcohol for a few minutes to soften the bonding agent. You will then be able to scrape it off. A light smear of Vaseline (petroleum jelly) before use will help prevent contamination.
Q.
Can I place the Wave-Wedge with the V-Ring in place?
A.
Yes. The V-shaped tines of the V-Ring allow you to place a wedge without removing the ring. And because the Wave-Wedge has a hollow underside, you can slide a second wedge from the opposite side to the first.
V3 Tab-Matrix: Frequently Asked Questions
Q.
How do I use the tab on the V3 Tab-Matrix?
A.
Holding the matrix by the tab in Triodent Pin-Tweezers, simply bend the tab towards you (mesially) to create a “contra-angle” handle. Then move the V3 Tab-Matrix apically into the embrasure. Try to avoid trapping gingival tissue between the matrix and the gingival margin of the cavity.
Q.
How do I prevent the little tab blocking my view of the cavity?
A.
While burnishing the V3 Tab-Matrix, bend the tab over and fold it out of the way.
Q.
How do I remove the V3 Tab-Matrix if it appears to be stuck?
A.
Firstly, peel the matrix away from the composite as far as possible on both sides using a suitable instrument. Gently rocking the matrix back and forth should then make it easy to remove. Use Triodent Pin-Tweezers to grab the hole on the wings of the V3 Tab-Matrix and wiggle the matrix out. Grabbing the tab may rip it off but the lateral holes work better. You can also try flossing (waxed floss) between the matrix and the restoration. Take care not to lacerate the gingival papillae by excessively rocking the matrix.
Q.
How do I keep the V3 Tab-Matrix in place while inserting a Wave-Wedge?
A.
If you prefer to place the V3 Tab-Matrix before the Wave-Wedge, use a finger to trap the matrix tab against the neighboring tooth while inserting the wedge. This will prevent the matrix sliding out of the embrasure.
Q.
Can I place the V3 Tab-Matrix after placing the wedge?
A.
Yes. In fact this is usually the best way to do it. Place the Wave-Wedge first, BEFORE cavity prep. This pre-wedging prevents bleeding, separates the teeth slightly and positions the wedge more apically, thereby allowing the contact point to be lower. The wedge will also depress the interproximal gingivae and rubber dam and protect both from the high-speed bur. Most of the time you will then be able to slide the V3 Tab-Matrix into place without removing the wedge.
Q.
How can I be sure that the composite has completely cured inside the V3 Tab-Matrix?
A.
To ensure complete curing of the composite, fold the wings of the V3 Tab-Matrix back (after removing the ring and wedges) and cure from the buccal and lingual sides.
Q.
How do I get the greatest benefit out of the rolled marginal ridge on the V3 Tab-Matrix?
A.
Positioned correctly, the rolled marginal ridge on the V3 Tab-Matrix will save you a lot of time in finishing because it closely replicates the natural anatomy of the tooth. To maximize the benefits of the ridge, take care to position the band exactly. If it won't go into the ideal position, slide the edge out while trapping the tab of the matrix against the neighboring tooth, then push the wedge back in. This method also eliminates the possibility of a gingival tag protruding into the cavity box.
Q.
How can I stop hooking the tab of the V3 Tab-Matrix when I go to release the Pin-Tweezers?
A.
Triodent Pin-Tweezers have a gold tip on one side, which indicates the side with the pin. Insert the matrix with the gold tip facing away from the occlusal surface. Then when you release the tweezers, the pin will be well away from the tab.
Q.
When doing an MOD, the matrix band side extrusions are too long and get in the way of the opposing matrix band.
A.
The easy way around this is to place the yellow V3 Ring on the tooth, trapping the matrix band in place, then bend the protruding ends of the matrix backwards to make room for the opposite matrix band.
Wave-Wedge: Frequently Asked Questions
Q.
What can I do if there is a gap at the bottom of the axial corner of the box with the Wave-Wedge in place?
A.
The Wave-Wedge, because of its unique central concavity, has exceptional sealing capacity on the matrix at the gingival margin. However, if there is a gap, you can wedge from both sides, thanks to the hollow underside which allows you to stack the wedges.
Q.
The point of the Wave-Wedge is quite sharp. Will it cut the gingival papillae?
A.
The Wave-Wedge's banana-shape design and tapered tip ensures the wedge is self-guiding, gliding through the embrasure without catching on the papillae. Moreover, because of the hollow underside, the papillae is accommodated and protected during the restoration. That is why the Wave-Wedge is ideally placed BEFORE cavity prep. Lubricating the tip of the wedge with a water-based lubricant or LA paste will also help it slide through without catching the rubber dam.
Q.
Apart from the adaptive sealing qualities, what are the reasons for the central concavity in the Wave-Wedge?
A.
The central concavity is actually the second feature in the Wave-Wedge's remarkable bag of tricks. First come the fine lateral wings at the point of the wedge. These compress easily as the wedge enters the embrasure, and then expand again as the wedge exits on the other side of the tooth. This is when the concavity comes into its own, effectively locking the wedge into place at its central point, and wrapping around the matrix at the gingival margin for a broad, adaptive and symmetric seal. It is also then in the best spot for positioning the V3 Ring.
Q.
What is the hole for in the end of the Wave-Wedge?
A.
While other wedges are easily dropped, Wave-Wedges and Triodent's V-Wedges are secure in Triodent's Pin-Tweezers which, as the name implies, have a pin in the end that goes into the hole. Because of the cross-over action of the Pin-Tweezers, the wedges will not fall out when the tweezers are held in a neutral position, and are very secure when the tweezers are gripped.
Q.
Do Wave-Wedges separate the teeth?
A.
Unlike the Wave-Wedge and Triodent's V-Wedge, most wedges have a conflict of function, needing to be hard enough to separate the teeth but soft and adaptive enough to provide a seal at the gingival margin. Triodent gives the job of separating the teeth to the V3 Ring or V-Ring, leaving the Wave-Wedge free in the role of holding the matrix and sealing the gingival margin.
Griptab: Frequently Asked Questions
Q.
Which size Griptab should I use?
A.
We recommend the small Griptab for inlays and veneers, the medium Griptab for larger inlays, onlays, veneers and some crowns, and the large Griptab for larger crowns. However, the ultimate choice is down to you through experience. In other words, use whichever size is most convenient for the restoration you are placing.
Q.
When should the Griptab be applied?
A.
Any time that’s convenient prior to commencing the cementation or bonding procedure. That means the Griptab may be applied as soon as the restoration has been manufactured, either in the lab or in the clinic, up to immediately before placement. The cured adhesive will not degrade if applied several days before cementing the restoration.
Q.
Can I use ordinary tweezers or a hemostat to hold the Griptab?
A.
The Griptab is designed with a hole to take the pin of Triodent Pin-Tweezers, making the grip very secure. Also, with the pivoting action of the Pin-Tweezers you have more than 180 degrees of extra maneuverability compared with other holding instruments, making the restoration even easier to place in the right position. You may use ordinary tweezers or artery forceps to hold the Griptab but there is a significant risk of dropping the restoration.
Q.
I would like to place the Griptab in the fissure groove of a restoration. Is that OK?
A.
Yes. We encourage you to place the Griptab where it is most convenient for the procedure at hand, whether it be the occlusal, buccal or lingual/palatal surface. Inlays and onlays and some crowns are generally too fragile for you to risk inviting the patient to bite down on them during try-in, no matter what device is being used to place them, so by all means place the Griptab in the fissure groove if that suits.
Q.
Can the Griptab adhesive cause any damage or discoloration to the restoration?
A.
No. This is a benign adhesive that causes no discoloration and also comes off easily and cleanly at the end of the procedure, leaving no residue at all.
Q.
Does the Griptab adhesive perform the same whether used on ceramic, PFM or gold crowns?
A.
Yes, so Griptabs can be used on all laboratory or CAD/CAM generated indirect restorations.
Q.
Can I attach a Griptab to a restoration once it is in the mouth?
A.
The Griptab system is registered with the FDA as a Class I product on the basis that the adhesive is cured extra-orally. To comply with the FDA registration, the adhesive should not be cured intra-orally, so we do not recommend that you do so.
Q.
Where on a veneer should I place a Griptab so that it does not interfere with shade matching?
A.
The Veneer Griptab is a very small device that leaves plenty of room for shade matching. However, it is both practical and convenient to place the Griptabs parallel with and close to the incisal edge of each veneer.
Q.
Veneers can be very thin. How do I remove the Griptab without fear of breaking them?
A.
Do not attempt to remove the Griptab until the veneer has been placed and the cement is set. Remove the Griptab by gently sliding a flat-bladed instrument behind it and peeling it off. We recommend that you hold the Griptab with the Pin-Tweezers while you are doing this.
Q.
If I’m not using a rubber dam, how can I control the problem of crevicular exudate during placement of the restoration?
A.
It’s a good idea to place Wave-Wedges to prevent tissue trauma during air-abrasion and to make cement clean-up easier, but if you place a paper point on the underside of a Wave-Wedge before inserting it, that will also soak up the exudates.
Q.
Are there other clinical situations where the Griptab may be useful?
A.
Definitely. The Griptab can be used on any small object you may wish to manipulate in the mouth (e.g. bonding a fractured piece of tooth back on). If you find a use for the Griptab you haven’t heard of that makes your job easier, let us know and we’ll spread the word.
Griptab Veneer and Crown Delivery System: Frequently Asked Questions
Q.
Which size Griptab should I use?
A.
We recommend the small Griptab for inlays and veneers, the medium Griptab for larger inlays, onlays, veneers and some crowns, and the large Griptab for larger crowns. However, the ultimate choice is down to you through experience. In other words, use whichever size is most convenient for the restoration you are placing.
Q.
When should the Griptab be applied?
A.
Any time that’s convenient prior to commencing the cementation or bonding procedure. That means the Griptab may be applied as soon as the restoration has been manufactured, either in the lab or in the clinic, up to immediately before placement. The cured adhesive will not degrade if applied several days before cementing the restoration.
Q.
Can I use ordinary tweezers or a hemostat to hold the Griptab?
A.
The Griptab is designed with a hole to take the pin of Triodent Pin-Tweezers, making the grip very secure. Also, with the pivoting action of the Pin-Tweezers you have more than 180 degrees of extra manoeuvrability compared with other holding instruments, making the restoration even easier to place in the right position. You may use ordinary tweezers or artery forceps to hold the Griptab but there is a significant risk of dropping the restoration.
Q.
I would like to place the Griptab in the fissure groove of a restoration. Is that OK?
A.
Yes. We encourage you to place the Griptab where it is most convenient for the procedure at hand, whether it be the occlusal, buccal or lingual/palatal surface. Inlays and onlays and some crowns are generally too fragile for you to risk inviting the patient to bite down on them during try-in, no matter what device is being used to place them, so by all means place the Griptab in the fissure groove if that suits.
Q.
Can the Griptab adhesive cause any damage or discoloration to the restoration?
A.
No. This is a benign adhesive that causes no discoloration and also comes off easily and cleanly at the end of the procedure, leaving no residue at all.
Q.
Does the Griptab adhesive perform the same whether used on ceramic, PFM or gold crowns?
A.
Yes, so Griptabs can be used on all laboratory or CAD/CAM generated indirect restorations.
Q.
Can I attach a Griptab to a restoration once it is in the mouth?
A.
The Griptab system is registered with the FDA as a Class I product on the basis that the adhesive is cured extra-orally. To comply with the FDA registration, the adhesive should not be cured intra-orally, so we do not recommend that you do so.
Q.
Where on a veneer should I place a Griptab so that it does not interfere with shade matching?
A.
The Veneer Griptab is a very small device that leaves plenty of room for shade matching. However, it is both practical and convenient to place the Griptabs parallel with and close to the incisal edge of each veneer.
Q.
Veneers can be very thin. How do I remove the Griptab without fear of breaking them?
A.
Do not attempt to remove the Griptab until the veneer has been placed and the cement is set. Remove the Griptab by gently sliding a flat-bladed instrument behind it and peeling it off. We recommend that you hold the Griptab with the Pin-Tweezers while you are doing this.
Q.
If I’m not using a rubber dam, how can I control the problem of crevicular exudate during placement of the restoration?
A.
It’s a good idea to place Wave-Wedges to prevent tissue trauma during air-abrasion and to make cement clean-up easier, but if you place a paper point on the underside of a Wave-Wedge before inserting it, that will also soak up the exudates.
Q.
Are there other clinical situations where the Griptab may be useful?
A.
Definitely. The Griptab can be used on any small object you may wish to manipulate in the mouth (e.g. bonding a fractured piece of tooth back on). If you find a use for the Griptab you haven’t heard of that makes your job easier, let us know and we’ll spread the word.
Double-Wedge: Frequently Asked Questions
Q.
The Double-Wedge looks too thick and short to work between the teeth. What do I need to do to make it function properly?
A.
Stretch the Double-Wedge, using progressively firmer pulls, before "flossing" between the teeth. This action not only makes the wedge thinner and longer, but it also changes the molecular structure of the plastic, making it stronger.
Q.
Where can I use the Double-Wedge?
A.
Double-Wedges work well with all matrix bands because they are not sharp, are excellent separators and also stop interproximal gingival bleeding. We have found that they work particularly well with the KerrNeos Supermat System because the retainer does not obstruct placement of the wedge. You can use them with bands like Tofflemire but the retainer arm can get in the way.
Q.
How strong are Double-Wedges?
A.
Double-Wedges are made of a surprisingly strong and elastic material. Most people cannot break them by pulling at each end.
Q.
Can you use Double-Wedges with a rubber dam?
A.
Yes, in fact they work especially well at retaining the rubber interproximally and protecting it from being caught by the high-speed bur.
Q.
Can the WedgeGuard be used as a matrix band?
A.
No. The WedgeGuard is for protecting the adjacent tooth from unintentional damage. If you use it as a matrix it will create an overhang. After removing the metal shield, the wedge can then be used as a wedge, retaining all the qualities of a Triodent Wave-Wedge.
Q.
The top of the WedgeGuard partially obscures my view of the cavity area and affects access. What can I do about that?
A.
You can improve vision and access by cutting away part of the guard, for example with a high-speed diamond bur.
Q.
What if the contact is too tight to insert the WedgeGuard?
A.
If the contact point is too tight to get the WedgeGuard through, cut through the occlusal enamel into the carious lesion to weaken the marginal ridge. Once the marginal ridge is fractured off, it is easy to push the WedgeGuard through.
Q.
How can I insert a matrix band with the wedge already in place when it is too tight?
A.
If there is no room to slide the matrix directly in between the wedge and the cavity, slide the wedge out partially, then place the matrix, then push the wedge back in. Use a finger to trap the matrix against the side of the tooth while doing this to ensure it does not move.
Q.
Does the WedgeGuard separate the teeth?
A.
Most wedges have a conflict of function, needing to be hard enough to separate the teeth but soft and adaptive enough to provide a seal at the gingival margin. The WedgeGuard will separate the teeth just slightly but that is not its function. Triodent gives the main job of separation to the V3 Ring or V-Ring, leaving the WedgeGuard free to fulfill its role firstly as an interproximal guard and then to provide an excellent marginal seal when the guard is removed and replaced with a standard matrix.
Q.
Can I stack other wedges under the WedgeGuard?
A.
Yes, you can. The wedge used in the WedgeGuard retains all the qualities of the Wave-Wedge.
Forceps: Frequently Asked Questions
Q.
Why do I need Triodent Forceps when they don’t look any different from the forceps I already have?
A.Only the prongs on Triodent Forceps are shaped to fit exactly into the grooves in the plastic tines of the V3 Ring. Once the ring is opened and the forceps locked, the ring is secure. Also, only Triodent Forceps have notches in the handles if you ever need to retension the ring.
Q.How do I retension the V3 Ring?
A.Easy. Just place the metal part of the ring between the notches in the forceps handles and squeeze the forceps like a nutcracker. Closing the tines will “jog the memory” of the nickel-titanium ring and it will resume its original position.
Pin-Tweezers: Frequently Asked Questions
Q.
When I squeeze the Pin-Tweezers the wedge or matrix falls out. What’s going on?
A.The cross-over action of the Pin-Tweezers is very simple and clever. Squeeze at the back to open the tweezers and attach a wedge or matrix. When you release the grip the tweezers will close and hold the wedge or matrix passively, in the ideal position to be handed to you by an assistant. To place or remove the wedge or matrix, grip the front end of the tweezers and you will have a powerful hold.
Q.How do I prevent the little tab blocking my view of the cavity?
A.While burnishing the V3 Matrix, bend the tab over and fold it out of the way.
Q.How can I stop hooking the tab of the matrix when I go to release the Pin-Tweezers?
A.Triodent Pin-Tweezers have a gold tip on one side, which indicates the side with the pin. Insert the matrix with the gold tip facing away from the occlusal surface. Then when you release the tweezers, the pin will be well away from the tab.
Q.How do I keep the V3 Matrix in place while inserting a Wave-Wedge?
A.If you prefer to place the V3 Matrix before the Wave-Wedge, use a finger to trap the matrix tab against the neighboring tooth while inserting the wedge. This will prevent the matrix sliding out of the embrasure.
Q.Can I place the V3 Matrix after placing the wedge?
A.Yes. In fact this is usually the best way to do it. Place the Wave-Wedge first, BEFORE cavity prep. This pre-wedging prevents bleeding, separates the teeth slightly and positions the wedge more apically, thereby allowing the contact point to be lower. The wedge will also depress the interproximal gingivae and rubber dam and protect both from the high-speed bur. Most of the time you will then be able to slide the V3 Matrix into place without removing the wedge.
Q.Why can’t I use the ordinary tweezers I already have?
A.You can, of course, but only Triodent Pin-Tweezers are designed with secure handling in mind when placing V3 Matrices and Wave-Wedges. You are far more likely to drop them with other tweezers. Only Triodent Pin-Tweezers give you the certainty that the wedge or matrix is being held correctly.
Q.How can I insert the Triodent matrix with the tab pointing straight up?
A.You don’t need to and we don’t want you to. Bend the tab at a contra-angle. This way you have plenty of room to enter the mouth and slide the matrix easily between the teeth. If you are working on a distal cavity, you then just need to bend the tab back over on to the distal molar to give you a clear working area.
Tab-Matrix: Frequently Asked Questions
Q.
How do I use the tab?
A.
Holding the matrix by the tab in Triodent Pin-Tweezers, simply bend the tab towards you (mesially) to create a “contra-angle” handle. Then move the Tab-Matrix apically into the embrasure. Try to avoid trapping gingival tissue between the matrix and the gingival margin of the cavity.
Q.
How do I prevent the little tab blocking my view of the cavity?
A.
While burnishing the Tab-Matrix, bend the tab over and fold it out of the way.
Q.
How do I remove the Tab-Matrix if it appears to be stuck?
A.
Firstly, peel the matrix away from the composite as far as possible on both sides using a suitable instrument. Gently rocking the matrix back and forth should then make it easy to remove. Use Triodent Pin-Tweezers and grab the hole on the wings of the Tab-Matrix and wiggle the matrix out. Grabbing the tab may rip it off but the lateral holes work better. You can also try flossing (waxed floss) between the matrix and the restoration. Take care not to lacerate the gingival papillae by excessively rocking the matrix.
Q.
How do I keep the Tab-Matrix in place while inserting a Wave-Wedge?
A.
If you prefer to place the Tab-Matrix before the Wave-Wedge, use a finger to trap the matrix tab against the neighboring tooth while inserting the wedge. This will prevent the matrix sliding out of the embrasure.
Q.
Can I place the Tab-Matrix after placing the wedge?
A.
Yes. In fact this is usually the best way to do it. Place the Wave-Wedge first, BEFORE cavity prep. This pre-wedging prevents bleeding, separates the teeth slightly and positions the wedge more apically, thereby allowing the contact point to be lower. The wedge will also depress the interproximal gingivae and rubber dam and protect both from the high-speed bur. Most of the time you will then be able to slide the Tab-Matrix into place without removing the wedge.
Q.
How can I be sure that the composite has completely cured inside the Tab-Matrix?
A.
To ensure complete curing of the composite, fold the wings of the Tab-Matrix back (after removing the ring and wedges) and cure from the buccal and lingual sides.
Q.
How can I stop hooking the tab of the Tab-Matrix when I go to release the Pin-Tweezers?
A.
Triodent Pin-Tweezers have a gold tip on one side, which indicates the side with the pin. Insert the matrix with the gold tip facing away from the occlusal surface. Then when you release the tweezers, the pin will be well away from the tab.
V-Wedge: Frequently Asked Questions
Q.
What can I do if there is a gap at the bottom of the axial corner of the box with the V-Wedge in place?
A.
The V-Wedge has excellent sealing capacity on the matrix at the gingival margin. However, if there is a gap, you can wedge from both sides, thanks to the hollow underside which allows you to stack the wedges.
Q.
The point of the V-Wedge is quite sharp. Will it cut the gingival papillae?
A.
The V-Wedge's banana-shape design and tapered tip ensures the wedge is self-guiding, gliding through the embrasure without catching on the papillae. Moreover, because of the hollow underside, the papillae is accommodated and protected during the restoration. That is why the V-Wedge is ideally placed BEFORE cavity prep. Lubricating the tip of the wedge with a water-based lubricant or LA paste will also help it slide through without catching the rubber dam.
Q.
What is the hole for in the end of the V-Wedge?
A.
While other wedges are easily dropped, V-Wedges and Triodent's Wave-Wedges are secure in Triodent's Pin-Tweezers which, as the name implies, have a pin in the end that goes into the hole. Because of the cross-over action of the Pin-Tweezers, the wedges will not fall out when the tweezers are held in a neutral position, and are very secure when the tweezers are gripped.
Q.
Do V-Wedges separate the teeth?
A.
Unlike the V-Wedge and Triodent's Wave-Wedge, most wedges have a conflict of function, needing to be hard enough to separate the teeth but soft and adaptive enough to provide a seal at the gingival margin. Triodent gives the job of separating the teeth to the V3 Ring or V-Ring, leaving the V-Wedge free in the role of holding the matrix and sealing the gingival margin.
Tri-Clip: Frequently Asked Questions
Q.
Do Tri-Clips produce tight contacts?
A.
Yes. Experts agree that sectional matrix systems are the surest way to achieve tight contacts since the lateral spring pressure acts like a McKean orthodontic tooth separator .¹ A Tri-Clip IS a sectional matrix. The only functional differences between the Tri-Clip system and other sectional matrices are:
- 1. The Tri-Clip is much quicker and easier to place.
- 2. The retention is better.
- 3. The tooth separation is better as the lateral force of the spring is greater and, in addition, the elastic Double-Wedge is an excellent separator in its own right.
- 4. The anatomically-shaped tines curve the matrix foil into the right shape and prevent the spring from falling into a wide cavity prep (as with other sectional matrix systems).
When you think about, it can't help but produce excellent contacts.
¹ Dental Clinics of North America, Vol 45, # 1, Jan 2001, p87.
Q.
¹ Dental Clinics of North America, Vol 45, # 1, Jan 2001, p87.
How do I prevent the little tab blocking my view of the cavity?
A.
Firstly, peel the matrix away from the composite as far as possible on both sides using a suitable instrument. Gently rocking the matrix back and forth should then make it easy to remove. Use Triodent Pin-Tweezers and grab the hole on the wings of the Tab-Matrix and wiggle the matrix out. Grabbing the tab may rip it off but the lateral holes work better. You can also try flossing (waxed floss) between the matrix and the restoration. Take care not to lacerate the gingival papillae by excessively rocking the matrix.
Q.
How do I keep the Tab-Matrix in place while inserting a Wave-Wedge?
A.
If you prefer to place the Tab-Matrix before the Wave-Wedge, use a finger to trap the matrix tab against the neighboring tooth while inserting the wedge. This will prevent the matrix sliding out of the embrasure.
Q.
Can I place the Tab-Matrix after placing the wedge?
A.
Yes. In fact this is usually the best way to do it. Place the Wave-Wedge first, BEFORE cavity prep. This pre-wedging prevents bleeding, separates the teeth slightly and positions the wedge more apically, thereby allowing the contact point to be lower. The wedge will also depress the interproximal gingivae and rubber dam and protect both from the high-speed bur. Most of the time you will then be able to slide the Tab-Matrix into place without removing the wedge.
Q.
How can I be sure that the composite has completely cured inside the Tab-Matrix?
A.
To ensure complete curing of the composite, fold the wings of the Tab-Matrix back (after removing the ring and wedges) and cure from the buccal and lingual sides.
Q.
How can I stop hooking the tab of the Tab-Matrix when I go to release the Pin-Tweezers?
A.
Triodent Pin-Tweezers have a gold tip on one side, which indicates the side with the pin. Insert the matrix with the gold tip facing away from the occlusal surface. Then when you release the tweezers, the pin will be well away from the tab.
If you are customer in the United States and wish to buy Triodent products, please call Ultradent on 888-230-1420.
For other countries, contact the distributors listed under International on our home page.
New Zealand customers may continue to call 0800TRIODENT.
For other countries, contact the distributors listed under International on our home page.
New Zealand customers may continue to call 0800TRIODENT.