Clinical effect of 3 polishing methods on resin composite restoration in filling wedge-shaped defect

Abstract

Abstract: PURPOSE: To evaluate the clinical effect of 3 polishing methods on resin composite restoration in filling wedge-shaped defect. METHODS: One hundred and fifty patients with wedge-shaped defects were randomly divided into 3 groups. After being filled with Nano composite resin(FILTEK Z350,3M), restorations in group 1 were polished with Sof-lex discs system, restorations in group 2 were polished with Super-snap system and group 3 with diamond bur and rubber cup. Restorations in each group were reexamined and assessed utilizing standards of USPH&Ryge after 0.5, 1 and 2 a. Chi-square test was performed using SPSS17.0 software package. RESULTS: No significant difference of secondary decay, marginal adaption, marginal staining, surface roughness, colour matching, wearing and gingival condition among 3 groups was found after 0.5 a and 1 a. Restorations in group 1 and group 2 showed better performance with regards to secondary decay, marginal adaption, marginal staining, wearing and color matching than group 3 after 2 years of restoration. CONCLUSIONS: Sof-lex discs and Super-snap polishing system after composite filling of wedge-shaped defect was effective in reducing secondary decay, marginal staining and wearing, as well as in maintaining the marginal adaption, which is worthy of wide clinical application.

Key words: Wedge-shaped defect, Composite resin, Polishing system

CLC Number:

R783.1

REN Qiang, WANG Yi, WEI Kui-jie. Clinical effect of 3 polishing methods on resin composite restoration in filling wedge-shaped defect[J]. Shanghai Journal of Stomatology, 2016, 25(3): 310-313.

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