As our profession has evolved from amalgam to composite for posterior direct restorations, one of the biggest clinical challenges has been creating consistently good proximal contacts. A number of gizmos have come through the marketplace promising to solve this vexing issue. I’ve tried a number of them with varying results.
But, the one device that has helped a lot is a sectional matrix system that incorporates a “G-ring” or a ring with tines that engage the facial and lingual embrasures creating a separating or wedging force. One issue with the G-rings is using them in combination with a wedge (to seal the matrix against the gingival margin of the proximal box). The G-ring tines would interfere with the wedge, or it would be the other way around. Basically, they were reluctant partners in the system.
The V3 ring system, by Triodent, is an ingenious modification of this device. Instead of a single tine to create the wedging force, they split it into a “V” creating space for a wedge right through the middle.
But, the folks at Triodent didn’t stop there. They created a sectional matrix that is anatomically contoured. In the kit, you’ll find three sizes: premolar, molar, and molar with a gingival extension. The matrix also has 3 little holes strategically located to make removing the band easy. And, you’ll need that help, because the contact WILL be tight! Of course, the system comes with a special pair of pliers that engage those little holes.
And, you’ll love that resistance you feel when removing the sectional matrix band, as it will confirm you have created a great contact. Not only will the contact be tight. It will be a broad contact, rather than a point-contact that is often created by traditional matrix bands.
They also include a special “waved” (anatomically contoured) wedge that also has a little hole for the special pliers, making it easy to place and remove.
Below is a sequence of photos of a recent case I did. In case you’re wondering, isolation was done with the Isolite system.
The V3 ring system from Triodent makes Class 2 posterior composites easy, predictable, and stress-free. And, it fits right into the Dental Warrior creed of a small investment with great returns.
Triodent has a “V3 starter pack” for $499 that includes everything you need. Give it a shot, if you haven’t already. It’s so good, I feel quite certain you’ll be very happy with the results you get.
UPDATE: Ultradent just became the exclusive distributor for Triodent in the U.S. – Effective April 1, 2012 (not an April Fools joke!)