Three-year clinical performance of two indirect composite inlays compared to direct composite restorations

Abstract

Objective: Despite the incremental build-up of resin composite restorations, their polymerization shrinkage during curing presents a serious problem. Indirect composite resin systems represent an alternative in overcoming some of the deficiencies of direct composite restorations. The hypothesis of the present study states that the clinical performance of restorations may be affected by different generation and application techniques. Study Design: Sixty restorations (20 DI system (Coltène/Whaledent AG, Altstätten, Switzerland) composite inlays, 20 Tescera ATL system (BISCO Inc. Schaumburg, Illinois, USA) composite inlays, and 20 direct composites) were applied to premolar teeth in 49 patients. Restorations were clinically evaluated by two examiners. Data were analyzed using the Kruskal-Wallis, Mann-Whitney U, Wilcoxon Signed Ranks, and X2 tests. Results: The Tescera ATL system performed significantly better than both direct composite restorations (p<0.001) and DI system (p<0.05). Conclusion: Within the limitations of this 3-year clinical study, indirect resin restorations showed better scores than direct restorations. In addition, the Tescera ATL system was found to be more successful than the DI system and direct composite restorations. Key words:Composite, inlay, direct composite restorations, indirect composite restorations.

Shear bond strength of indirect composite material to monolithic zirconia

“…The system consists of a micro hybrid composite and an Indirect Aqua Thermal Light Polymerization unit for processing indirect composite restorations in an oxygen-free environment. Heat, light, and air pressure use for polymerization 26. The restorations have the superior aesthetic and mechanical properties due to the post-curing procedure took place in a pressurized environment.…”

Shear bond strength of a self-etched resin cement to an indirect composite: Effect of different surface treatments

“…Moreover, polymerization shrinkage takes place outside the mouth, and this limits the shrinkage to that of the thin luting cement layer. [6] Resin bonding is a crucial step in the process of placing indirect composites and critical for the longevity of restoration. [7] Successful cementation increases the retention and the fracture resistance of the tooth and…”

Passung von indirekt auf Silikonmodellen hergestellten Kompositinlays

“…Bereits in der Vergangenheit beschäftigten sich einige Autoren mit der Herstellung von indirek ten Kompositrestaurationen. Im Vergleich zu di rekten Kunststofffüllungen weisen sie bessere klinische Werte insbesondere bei der Formge staltung, der Farbstabilität und bei den postope rativen Hypersensibilitäten [13] und einen klei neren Randschluss auf [14,15]. Indirekte Kunst stoffrestaurationen erfüllen einen hohen ästhe tischen Anspruch, sind mechanisch belastbar und können intraoral repariert werden [16].…”