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ePaper created 2015-08-28, 13:01:48 | version 1.38.0
24 I I case report _ veneering technique Fig. 1_Composite veneering system COMPONEER. Fig. 2_Incorrect axial tilt and occlusion plane. Fig. 3_Shape selection with the Contour Guide. Fig. 4_COMPONEER securely held for processing in the holder. cosmeticdentistry 2_2015 _Introduction Aesthetic considerations are obviously very im- portant when it comes to highly exposed areas, i.e. in the restoration of front teeth. Patients increas- ingly expect a perfect appearance, which means in- creasing demand for improved aesthetics. In many cases, this can be difficult to achieve in direct restorativedentistry.Theemphasisusuallyhasbeen on the preparation of restorations that are invisible at normal speaking distance. Traditionally, dentists used either the established freehand technique to correct the shade and the shape of a tooth or they opted for classic ceramic veneers. Swiss dental specialist COLTENE developed andcreatedaninnovativesystemthatgivesdentists another option to choose. The direct composite veneering system COMPONEER both improves and simplifiesthetime-consumingfreehandtechniquefor major front tooth restorations (Fig. 1). Polymerised, prefabricatedcomposite–enamelshellscanimprove the final quality, while their basic anatomical shape allows dentists to work up to 40 per cent more effi- ciently.Thecustomisableshellsarecompletelyfreefrom airinclusion,whichimprovesmarginaladaptation.The homogenousmaterialwithathicknessofonly 0.3 mm bonds 100 per cent to the processing composite. _Different systems Ingeneral,threebasicsystemsarenormallyused for restoration of front teeth: _Direct freehand technique with composite; _Direct CAD/CAM technique (Cerec); _Laboratory-fabricated veneers. Large-scale freehand restorations require time, skill and shaping. However, the direct technique is less invasive and more economical, which makes it attractive to many people. Even so, indirect tech- niques are often used for restorations because they are more likely to be successful. Major problems with the conventional direct technique are diffi- culties with shaping margins, management of the top enamel layer and anatomical shaping. Because of the nature of the materials microporosities are common, which often means faster discoloration and problems with appearance. The COMPONEER directveneeringsystemwithitscombinationofim- provedmaterials,speciallydesignedequipmentand detailed instructions broadens the range of indica- tions for the direct technique. COMPONEER more- over sets new standards for economy and quality. Front-tooth restoration to go Author_Dr Mario Besek, Switzerland Fig. 1 Fig. 2 Fig. 3 Fig. 4