Effects of lining materials on microleakage and internal voids of Class II resin-based composite restorations

Shu Fen Chuang, Ying Tai Jin, Ting Sheng Lin, Chih Han Chang, Franklin García-Godoy

研究成果: Article同行評審

32 引文 斯高帕斯(Scopus)

摘要

Purpose: To evaluate the ability of various lining materials to reduce cervical marginal microleakage and internal voids within Class II resin-based composite restorations. Materials and Methods: 168 extracted molars were prepared with both moderate and deep Class II cavities. The teeth were then randomly divided into 14 groups and restored with direct composite or sandwich techniques using various lining materials [flowable composites, compomers and resin-modified glass-ionomer cements (RMGI)]. Following restoration, the teeth were stored for 24 hours, thermocycled, and placed in fuchsin dye for 24 hours. Subsequently, the teeth were sectioned in halves and observed through a stereomicroscope. Cervical microleakage and internal voids were assessed separately as the length ratio of dye penetration to the cervical wall and the area ratio of voids to sectioned restorations. The data were analyzed with one-way ANOVA. Results: Flowable composite lining groups demonstrated either similar or more cervical microleakage than did their respective direct restoration groups. Groups lined with RMGIs showed similar or better marginal sealing than did their resin restoration groups. In deep cavities, Vivaglass Liner group showed the best marginal sealing. RMGI-lined groups exhibited more internal voids in deep restorations.

原文English
頁(從 - 到)84-90
頁數7
期刊American Journal of Dentistry
16
發行號2
出版狀態Published - 2003 四月

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