Abstract
BackgroundAs the member of erbium laser family, Erbium, Chromium: Yttrium Scandium Gallium Garnet (Er,Cr:YSGG) has obtained the approval for caries removal and cavity preparation by Food and Drug Administration (FDA). However, there is still controversy over the beneficial effects of Er,Cr:YSGG preparations on microleakage. The present study is the first systematic review and meta-analysis to compare the microleakage of cavities prepared by Er,Cr:YSGG lasers with that by traditional burs. In addition, the effect of acid etching on the adhesive potential of self-etch and etch-and-rinse adhesives was assessed after laser preparation.MethodsAn electronic search was performed in Pubmed, EBSCO, Embase, and the Cochrane Controlled Register of Trials (CENTRAL).ResultsTotally, 357 articles were identified. Finally, 13 met the inclusion criteria, of which 11 were selected for meta-analysis. All the included studies exhibited a moderate risk of bias. Based on the meta-analysis, no significant difference was observed between the Er,Cr:YSGG and traditional bur groups in terms of the incidence of microleakage. Self-etch adhesives, in combination with prior acid etching, showed less microleakage than those without acid etching in the laser-prepared cavities.ConclusionsCurrent studies do not support the beneficial effects of Er,Cr:YSGG preparations on microleakage. Additional acid etching with self-etching adhesives is recommended after Er,Cr:YSGG preparations. Further high-quality studies are needed to draw a convincing conclusion in the future.
Highlights
As the member of erbium laser family, Erbium, Chromium: Yttrium Scandium Gallium Garnet (Er,Cr: YSGG) has obtained the approval for caries removal and cavity preparation by Food and Drug Administration (FDA)
This pioneering review was undertaken to assess: 1) the microleakage of cavities prepared by Er,Cr: YSGG lasers in comparison with that by traditional burs; 2) the effect of acid etching on the adhesive potential of self-etch and etch-and-rinse adhesives after laser preparation
Focused question The focused question according to the Participants, Interventions, Control and Outcomes (PICO) principle was: ‘During cavity preparation, does Er,Cr:YSGG laser result in less microleakage of the restoration in comparison to traditional burs?’ and ‘Does the application of prior acid etching increase the adhesive potential of selfetching and etch-and-rinse adhesives in laser-prepared cavities?’
Summary
As the member of erbium laser family, Erbium, Chromium: Yttrium Scandium Gallium Garnet (Er,Cr: YSGG) has obtained the approval for caries removal and cavity preparation by Food and Drug Administration (FDA). The present study is the first systematic review and meta-analysis to compare the microleakage of cavities prepared by Er,Cr:YSGG lasers with that by traditional burs. The effect of acid etching on the adhesive potential of self-etch and etch-and-rinse adhesives was assessed after laser preparation. The member of erbium laser family, Erbium, Chromium: Yttrium Scandium Gallium Garnet (Er,Cr:YSGG) has gained the approval for caries removal and cavity preparation by Food and Drug Administration(FDA) [3]. Several researchers have measured the microleakage of cavities prepared by lasers and reported favorable results [7,8,9] This conclusion is controversial because some studies have reported opposite results [10, 11]. This pioneering review was undertaken to assess: 1) the microleakage of cavities prepared by Er,Cr: YSGG lasers in comparison with that by traditional burs; 2) the effect of acid etching on the adhesive potential of self-etch and etch-and-rinse adhesives after laser preparation
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