Re: Improving Proximal Contours for Direct Resin Restorations

[Anonymous]

When restoring Class II adhesive restorations in children, teenagers, and adults, the goal is to provide 1) tight contacts, 2) good contours, and 3) proper anatomy. There are many types of matrices on the market, however, in restoring thousands of restorations in children and teenagers, I have found that segmental metal matrices provide for all three goals. The purpose of this article is to review several previously published articles and illustrate several examples of available matrices.

T-bands The T-bands that provide the best contacts are the .001 inch brass matrices. These bands can provide quick and easy matrices, and I use them for children and teenagers. I prefer the straight (vs. curved) narrow T-bands for primary teeth. These bands are used with wedges and provide tight contacts for Class II restorations in young children.

Omni-matrix The Omni-matrix? (Ultradent Corp.) has several advantages over the classic Tofflemire? retainer. The Omni-matrix has both pediatric and adult sizes and has the advantage of using metal or mylar strips.

Sectional matrices with separation rings According to Loomans, B.A., et al: “The use of sectional matrices combined with separation rings resulted in tighter proximal contacts compared to when circumferential systems were used.”2 I have found this to be true in both primary and permanent teeth when restoring Class II resin composite, compomer, resin-modified glass ionomers, and glass ionomer materials.