cosmetic dentistry_ beauty & science

20 I I special topic _ composite restorations cosmeticdentistry 1_2013 Following enamel-preserving preparation using a tapered, round-ended fine diamond bur and sand-blasting, a celluloid strip was placed subgingivally and fixed using flowable compos- ite. This helped to create the desired emergence profile and contact points. Next, a retraction cord was inserted into the labial part of the gingival sulcus (Fig. 5). After isolation of the operative field, the prep- aration was etched with 37 % phosphoric acid for 30 seconds, then thoroughly rinsed and dried. Subsequently, a fifth-generation bonding agent was applied and light cured (Fig. 6). The next step entailed creating palatal and two lateral enamel walls that were completed using Fig. 7_Completed palatal and two lateral enamel walls. The lingual shelf leaves room for the dentine layering. Fig. 8_Distal and mesial lobes created with increments of dentine-shade resin. Fig. 9_Darker-shade dentine on the cervical third. White tint Fig. 12Fig. 10 Fig. 18Fig. 16 Fig. 9Fig. 7 Fig. 15Fig. 13 Fig. 8 Fig. 11 Fig. 14 Fig. 17