Er:YAG laser cavity preparation and composite resin bonding with a single‐component adhesive system: Relationship between shear bond strength and microleakage

Abstract

Our results supported the use of single-component adhesive systems in cavities prepared using Er:YAG laser. The step of acid etching must be maintained for the whole cavity walls in regard of the microleakage values.

Effects of different types of adhesive systems on the microleakage of compomer restorations in Class V cavities prepared by Er,Cr:YSGG laser in primary teeth

“…Since Prime&Bond NT can be used with or without prior acidetching 18,38,39,43,50) , it was applied to the cavity wall without a separate etching step in the present study. However, since smear layers do not exist in laser-prepared cavities 23,25,27) , and without prior acid-etching, Prime&Bond NT showed higher microleakage than the other adhesives in the present study.…”

“…In vitro microleakage studies are a valuable means of evaluating clinical restorative materials and techniques on their ability to reduce, and perhaps eliminate, microleakage. Some in vitro studies have already demonstrated the influencing role of adhesive systems on microleakage 25,26) . This in vitro study was carried out to further investigate the role of adhesive systems (etch-and-rinse versus self-etch) on microleakage in laser-prepared cavities in primary teeth.…”

“…Thermal cycles ranging between 200 and 1,000 were used in many studies 25,27) . In this study, 500 thermal cycles between 5 and 55°C were applied.…”

In vitro microleakage of class v composite restorations prepared by Er,Cr:YSGG laser and carbide bur

“…showed that dentinal margin microleakage is minimized when an etch-and-rinse adhesive system is used 34 . Given this, and the fact that we applied an adhesive system with a pH=2.7 (ScotchBond Universal), which is classified as one of the "mild" self-etch adhesives 7 and does not totally remove the smear layer or penetrate it towards sound dentin, one would expect the results to be the reverse.…”

“…An additional selective enamel etching step is required when self-etch systems are applied to such margins. According to several studies, this additional step is important to reduce enamel margin microleakage 23,27,[32][33][34][35] .…”