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

Abstract

The aim of this in vitro study was to evaluate the effects of different types of adhesive systems on the microleakage of compomer restorations in Class V cavities prepared by erbium, chromium: yttrium scandium gallium garnet (Er,Cr:YSGG) laser. There were five test groups according to the type of adhesive applied to the cavities: Adper Single Bond 2 (Group 1), Scotchbond Multi-Purpose Plus (Group 2), Xeno III (Group 3), Clearfil Protect Bond (Group 4), Prime&Bond NT (Group 5). Dye penetration was evaluated under a stereomicroscope, and data were statistically analyzed by Kruskal-Wallis and Wilcoxon Signed Ranks tests. Gingival margins showed significantly higher microleakage than occlusal margins in all the test groups (p<0.05). Groups 1 and 2 showed significantly less microleakage than Group 5 (p<0.05), and there were no statistically significant differences among Groups 3, 4, and 5 (p>0.05). None of the dentin bonding agents eliminated microleakage completely, and higher microleakage scores were observed along the gingival margin than the occlusal margin.

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

“…When comparing microleakage between enamel and dentin margins for all groups and each one of the samples individually, dentinal margins demonstrate vastly larger amounts of dye penetration. In agreement with this observation is a summation of the published literature 1,3,8,10,12,23,[27][28][29][30]32,37,38,44,45 . This agreement can be attributed to the more difficult and technically sensitive procedure involving adhesion to dentin 8 , as well as to the more complex and reduced inorganic content of the dentin compared to enamel 1 .…”

“…Bovine teeth are the most widely used substrate substituted for human Oberkochen, Germany). Microleakage scores were based on a 4-grade scale presented in Table 1 28 .…”

Effect of acid etching and different Er:YAG laser procedures on microleakage of three different fissure sealants in primary teeth after aging

“…For this reason, in-vitro evaluation has become more suitable for obtaining simulations of oral cavity conditions (thermocycling, water aging and chewing forces) in a laboratory environment to mimic the natural aging process. The present study differs from the studies mentioned above 17,18) , in that all specimens were aged using Fig. 1 The digitally photographs of a specimen using a stereo-microscope.…”

Assessment of Microleakage of a Composite Resin Restoration in Primary Teeth Following Class III Cavity Preparation Using Er, Cr: YSGG laser: An In Vitro Study

“…It is a widely used and generally preferred method because it is easily available, cheap, and non-toxic. 26 In cavities that were conventionally prepared, etching with phosphoric acid resulted in removal of smear layer and exposure of enamel prism sheaths and dentinal tubules. 27 In this study, microleakage was seen to be higher following conventional etching.…”