cosmetic dentistry - beauty & science

16 I I research _ conservative dentistry _Simplification of the restorative protocol Most restorative protocols require numerous materials, each selected for particular beneficial properties, numerous steps and a cumulatively complex description of the specific sequence that must be followed exactly. For example, micro-hybrid composites have ex- cellent compressive strength for occlusal surfaces, buttheymaynotflowandadapttomarginsandun- dercut areas of the preparation and can be difficult to sculpt. Flowable composites can adapt readily to the micro-anatomy of the tooth surface and areverypolishablebutcannotwithstandthemasti- catory forces of direct occlusal contact. Beautifil Flow Plus (SHOFU) introduces a new category of restorative material: the “injectable” flowable composite resin (Fig. 12). Based on giomer chemistry, it is neither a conventional composite nor a flowable resin; Flow Plus is a unique blend of these materials with the benefits of both. Its high- strength resin matrix is densely packed with fillers optimised to 67 per cent. Beautifil Flow Plus has a higher yield point than other flowables; thus, it is not deformed by the strongocclusalforcesplacedontheposteriorteeth. Owing to its excellent physical properties, Beautiful Flow Plus is indicated for restoring both anterior andposteriorteeth,anditissuitablefortheocclusal surfaces of posterior teeth. Two viscosities are available, a sculptable non- flowF00(Fig.13)andalow-flowF03(Fig.14),which are used together in the resin cone technique. Both are suitable for the occlusal surfaces of posterior teeth. The highly elastic Beautifil Flow F 10 is placed after the adhesive for interface stress relief. Then, thenon-flowisinjectedtoformcuspsandmarginal ridges. It injects smoothly from the syringe, retains its shape, and does not develop a dispensing horn. Beautifil Flow Plus is not subject to technique sen- sitivity, and the cone injection technique offers an important time advantage when compared with the layering technique. Beautifil Flow Plus F 03 is placed last to finalise the occlusal anatomy of the restoration and to seal the marginal areas. Used individually, or preferably together, these innovative techniques and materials provide prac- cosmeticdentistry 3_2012 Fig. 17 Fig. 12 Fig. 13 Fig. 14 Fig. 18 Fig. 19 Fig. 15 Fig. 16