SEM Evaluation of Surrounding Enamel after Finishing of Composite Restorations_ Preliminary Results

International Conference on Innovative Research - ICIR Euroinvent 2017

Iovan, G.^1 ; Stoleriu, S.^1 ; Solomon, S.^1 ; Ghiorghe, A.^1 ; Sandu, A.V.^2 ; Andrian, S.^1

Department of Odontology, Periodontology and Fixed Prosthodontics, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, Iai, Romania^1

Faculty of Materials Science and Engineering, Gheorghe AsachiTechnical University of Iai, Romania^2

关键词: Composite resins;    Composite restorations;    Deep groove;    Smooth surface;    Surface characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/209/1/012079/pdf
DOI  :  10.1088/1757-899X/209/1/012079

来源: IOP

【 摘 要 】

The purpose of this study was to analyze the surface characteristics of the enamel adjacent to composite resin after finishing the restoration with different diamond and tungsten carbide burs. The topography of enamel was observed by using a scanning electron microscope. Finishing with extra-/ultra-fine carbide burs, and extra-fine diamond burs resulted in smooth surfaces. In few areas some superficial scratches with no clinical relevance were observed. Deep grooves were observed on the surface of enamel when fine diamond burs were used. Finishing of composite restorations with coarse burs should be avoided when there is a high risk of touching and scratching adjacent enamel during the procedure.