Ian Shuman, DDS, MAGD, AFAAID
There are many direct composite materials available; however, few offer a majority of the characteristics sought by clinicians. Optimum composite restoratives are those that can be used in cases ranging from posterior Class Vs to anterior composite veneers. Having one type of composite resin offers economic benefits (i.e., a reduction in product overhead and waste) and adaptability in multiple restorative situations. It also means the clinician needs fewer shades on hand, and shades are less likely to expire before they are used or even opened.
There are composite resin systems with the clinical components and benefits sought by clinicians in a single product. One of those traits is sensitivity to photopolymerization. Some composites implement radical-amplified photopolymerization (RAP) initiator technology.1 This technology offers an increased working time under ambient light (90 seconds), with a decrease in curing time under halogen light (10 seconds).
Additionally, particle type, size, and shape have a direct effect on strength, durability, and polishability, among other attributes. For example, materials that contain a high percentage by weight of silica-zirconia filler show increased longevity and strength.2 Also, composites available in a multitude of shades in both syringes and preloaded tips are ideal.
Product waste is a very real problem for dentists. Running a practice is akin to managing a miniature hospital. Practice overhead must be managed, and material waste significantly reduced or eliminated. Ideally, 5% of a dental budget should be devoted to supplies.3 This figure can remain stable provided that inventory is under control. One way to manage the supply budget is by limiting the inventory needed per procedure, including direct composite restoration materials. By reducing product overhead, less waste is produced. In addition, with the right composite system, fewer shades are required—including rare shades that often expire prior to complete use or even use at all.
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