Resin infiltration of deproteinised natural occlusal subsurface lesions improves initial quality of fissure sealing

作     者：Andrej M Kielbassa Ina Ulrich Rita Schmidl Christoph Schuller Wilhelm Frank Vanessa D Werth 

作者机构：Centre for Operative Dentistry Periodontology and Endodontology University of Dental Medicine and Oral Health Danube Private University (DPU) Krems Austria Department of Applied Genetics and Cell Biology UFT-Campus Tulln University of Natural Resources and Life Sciences (BOKU) Vienna Austria Centre for Preclinical Education Department of Biostatistics University of Dental Medicine and Oral Health Danube Private University (DPU) Krems Austria 

出 版 物：《International Journal of Oral Science》 (国际口腔科学杂志（英文版）)

年 卷 期：2017年第9卷第2期

页      面：117-124页

核心收录：

学科分类：1003[医学-口腔医学] 100302[医学-口腔临床医学] 10[医学] 

基　　金：We are indebted to Mrs Petra Pilz (KaVo Dental  Vienna  Austria) for placing the DIAGNOcam and the DIAGNOdent pen systems at our disposal. We also thank Mrs Monika Wilk (Brasseler  Salzburg  Austria) for generously providing the cut-off wheels. This study was funded by the authors and their institutions. No external funding was available for this investigator-driven study 

主　　题：aprismatic enamel fissure sealing occlusal caries resin infiltration sodium hypochlorite 

摘      要：The aim of this ex vivo study was to evaluate the infiltration capability and rate of microleakage of a low-viscous resin infiltrant combined with a flowable composite resin(RI/CR) when used with deproteinised and etched occlusal subsurface lesions(International Caries Detection and Assessment System code 2). This combined treatment procedure was compared with the exclusive use of flowable composite resin(CR) for fissure sealing. Twenty premolars and 20 molars revealing non-cavitated occlusal carious lesions were randomly divided into two groups and were meticulously cleaned and deproteinised using Na OCl(2%). After etching with HCl(15%), 10 premolar and 10 molar lesions were infiltrated(Icon/DMG; rhodamine B isothiocyanate(RITC)-labelled) followed by fissure sealing(G-?nial Flo/GC; experimental group, RI/CR). In the control group(CR), the carious fissures were only sealed. Specimens were cut perpendicular to the occlusal surface and through the area of the highest demineralisation(DIAGNOdent pen, Ka Vo). Using confocal laser-scanning microscopy, the specimens were assessed with regard to the percentage of caries infiltration, marginal adaption and internal integrity. Within the CR group, the carious lesions were not infiltrated. Both premolar(57.9% ± 23.1%) and molar lesions(35.3% ± 22.1%) of the RI/CR group were uniformly infiltrated to a substantial extent, albeit with significant differences(P = 0.034). Moreover, microleakage(n = 1) and the occurrence of voids(n = 2) were reduced in the RI/CR group compared with the CR group(5 and 17 specimens,respectively). The RI/CR approach increases the initial quality of fissure sealing and is recommended for the clinical control of occlusal caries.