This study was designed to evaluate microleakage that appeared on Resin-Modified Glass-Ionomer Cement (RMGIC) restorations. Sixty class V cavities (h x w x l = 2 mm x 2 mm x 3 mm) were cut on thirty extracted third molars, which were randomly allocated to three experimental groups. All the buccal cavities were pretreated with polyacrylic acid, whereas the lingual cavities were treated with thre...

Background and Aim: Use of fluoride releasing materials to decrease the risk of demine-ralization around orthodontic brackets would be reasonable as an adhesive for bracket bonding only if they provide acceptable shear bond strength (SBS). The aim of this study was to evaluate the SBS of resin-modified glass ionomer cements (RMGICs) modified by nano-zinc oxide (NZnO) and nano- hydroxyapatite (N...

The aim of this in vitro study was to investigate three different cements for their suitability provide semi-permanent cementation, and compare the retention forces implant-supported single crowns (SC) three-unit fixed dental prostheses (FDP) luted with these cements. Twenty-four methacrylate models were supplied implants/abutments each simulate condition SCs/FDPs. Cobalt-chromium frameworks fa...

Glass-ionomer cement (GIC) is bioactive and independent. Bioactivity, which a big trend in restorative dentistry. When they actively stimulate with microbiological species besides their primary function of restoring tooth structure then materials should called “bioactive” materials. The purpose this study was to determine the bond stability change interfacial ultra-structure conventional glass-...

Department of Conservative Dentistry, Yonsei University School of Dentistry and Oral Science Research Center, Seoul, Korea Objectives: The internal adaptation of composite restorations with or without resin modified glass ionomer cement (RMGIC) was analyzed non-destructively using Microcomputed tomography (micro-CT). Materials and Methods: Thirty intact human teeth were used. The specimens were...

The objective of this study was to test the effects of enamel deproteinization on bracket bonding with conventional and resin-modified glass ionomer cement (RMGIC). One hundred premolars, extracted for orthodontic reasons, were divided into five groups (n = 20). Group 1 (control): enamel was etched with 35 per cent phosphoric acid, a thin layer of adhesive was applied, and the brackets were bon...