Dental Tribune Asia Pacific Edition No.12, 2017

Dental Tribune Asia Paciﬁc Edition | 12/2017 TRENDS & APPLICATIONS 15 Dr Eduardo Mahn is a certified im- plantologist and the Director of Clinical Research, and the Director of the Program of Esthetic Den- tistry at the Universidad de los Andes in Santiago in Chile. He can be contacted at emahn@miuandes.cl. Dr Juan Pablo Sánchez is a dental surgeon. He holds a post- graduate degree in oral rehabili- tation from the Universidad de los Andes and lectures on this field at the university. He can be contacted at drjpsanchez@gmail.com. AD 13a 13b Figs. 13a & b: Radiographic control im- ages before and after the treatment. the software suite (inLab, Dentsply Sirona) and milled from an IPS e.max CAD lithium disilicate block (Ivoclar Vivadent; Figs. 3a & b). After the crystallisation firing, the crown was stained and glazed (Fig. 4). The next step was to etch and silanate the ceramic crown with the new glass-ceramic primer Monobond Etch & Prime (Ivoclar Vivadent). This primer combines a ceramic etching and silanating component in a single material and therefore eliminates the need for the ceramic to undergo hydro- fluoric acid etching (Fig. 5). After the etching and silanating step, the crown was rinsed with water and dried. The isolated enamel was then etched (Fig. 6). The adhe- sive (Tetric N-Bond Universal) was applied and dispersed with a strong stream of air. The dual-cur- ing version of the Variolink Es- thetic luting composite was used for seating owing to the thickness of the crown and the low translu- cency of the ceramic material (Fig. 7). The luting composite was applied into the crown. The resto- ration was then seated (Fig. 8) and light-cured from each side for two seconds. Excess composite was easy to remove owing to the Ivocerin photoinitiator (Ivoclar Vivadent), which provides a fast and thorough cure with a mini- mum amount of energy (Fig. 9). For final polymerisation, the res- toration was light-cured from each quarter for 20 seconds (Fig. 10). Figures 11 and 12a & b show the oral situation after placement of the crown. Although the ce- ment line was located above the gingival margin, it was not visi- ble owing to the favourable tone and opacity of the luting compos- ite. Figures 13a & b show radio- graphic control images of the res- toration: the radiopaque build-up material and cement can easily be distinguished from the tooth structure. This aspect is particu- larly in situations where excess cement cannot be seen with the naked eye. important Conclusion The cementation methods used in conjunction with all- ceramic materials have changed for single-crown restorations. Variolink Esthetic is a protagonist of the latest generation of luting composites. Excellent bond strength values, coupled with user- friendly handling characteristics and highly aesthetic properties, make this material an asset in day-to-day dental restorative care.

Dental Tribune Asia Pacific Edition No.12, 2017

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