Does Er,Cr:YSGG reduce the microleakage of restorations when used for cavity preparation? A systematic review and meta-a
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RESEARCH ARTICLE
Open Access
Does Er,Cr:YSGG reduce the microleakage of restorations when used for cavity preparation? A systematic review and meta-analysis Yali Zhang1†, Wenfei Chen2†, Jinrui Zhang3 and Yanhui Li2*
Abstract Background: 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). 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. Methods: An electronic search was performed in Pubmed, EBSCO, Embase, and the Cochrane Controlled Register of Trials (CENTRAL). Results: Totally, 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. Conclusions: Current 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 highquality studies are needed to draw a convincing conclusion in the future. Keywords: Bur, Cavity preparation, Er,Cr:YSGG, Laser, Microleakage
Background Many new tools and materials have been developed owing to the popularity of minimally invasive dentistry. In the past 15 years, laser technology has attracted attention in modern dentistry for its various advantages [1, 2]. * Correspondence: [email protected] † Yali Zhang and Wenfei Chen are contributed equally to this article and should be regarded as co-first authors. 2 Department of Stomatology, The Second People’s Hospital of Qujing, Qujing 655000, China Full list of author information is available at the end of the article
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]. Compared with traditional burs, Er,Cr:YSGG laser does not contact the tooth directly and has less vibration, noise, pressure, and thermal damage during cavity preparation [4]. Moreover, previous studies have reported a significant alteration in surface topography of the cavity after laser preparation, which might improve adhesion and the
© The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 Internatio
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