The effect of erosion and abrasion on surface properties of composite resin

International Conference on Innovative Research - ICIR Euroinvent 2016

Stoleriu, S.^1 ; Andrian, S.^1 ; Pancu, G.^1 ; Nica, I.^1 ; Munteanu, A.^2 ; Balan, A.^3 ; Iovan, G.^1

Odontology-Periodontology and Fixed Prosthesis Department, Grigore T. Popa University of Medicine and Pharmacy of Iai, Faculty of Dental Medicine, 16 Universitatii Str., Iai

700115, Romania^1

Department of Machine Tools, Gheorghe Asachi Technical University of Iai, Blvd. D. Mangeron, 59 A, Iai

700050, Romania^2

Surgical Department, Grigore T. Popa University of Medicine and Pharmacy of Iai, Faculty of Dental Medicine, 16 Universitatii Str., Iai

700115, Romania^3

关键词: Artificial saliva;    Composite resins;    Evaluation of surface roughness;    Group 4;    Mean surface roughness;    Properties of composites;    Standardized samples;    Tooth brushing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/133/1/012056/pdf
DOI  :  10.1088/1757-899X/133/1/012056

来源: IOP

【 摘 要 】

The aim of the study was to evaluate the surface roughness of two commercial composite resins submitted to erosive attack, to abrasive wear and to association of erosive and abrasive challenge. Standardized samples of G-snial anterior (GC Company) and Essentia (GC Company) composite resins were randomly split in 6 groups. In group 1 the samples were maintained in artificial saliva until the evaluation of surface roughness. In group 2 the samples were submitted only to erosive attack, in group 3 only to abrasive challenge and in groups 4,5, and 6 the erosive attack was followed by abrasive challenge immediately (group 4), 30 minutes after the erosive attack (group 5) and one hour after the erosive attack (group 6). The specimens were evaluated using surface roughness measuring tester SJ-210 (Mitutoyo Corporation, Japan) and the mean surface roughness values (Ra, μm) of each specimen were registered. A significantly increase of both composite resins surface roughness was recorded after erosive attack and abrasive challenge. Toothbrushing 60 minutes after acidic contact determined no significant differences in surface roughness of composite resins.