European Journal of Prosthodontics and Restorative Dentistry

Two-Body Wear Resistance of Some Indirect Composite Resins


Abstract - The aim of this study was to evaluate two-body wear of five indirect composites and compare them with enamel. Signum, belleGlass HP, SR Adoro, Dialog, GC Gradia and enamel were formed into cylinders (n=10). Twobody abrasive wear rates were determined using a porcelain disk and a pin on disk apparatus. The height and weight loss of the specimens were measured by stereomicroscope and digital scale. The data were subjected to analysis of variance and Tukey HSD tests to determine significant differences (α=0.05). GC Gradia showed significantly less wear resistance than the other materials. Enamel was more resistant than any of the tested composites. Within the limitations of this study it can be concluded that the type of resin, filler size and method of polymerization could have affect the two-body abrasion resistance of indirect composites.

KEY WORDS: Dental restoration wear, Composite resins, Dental materials, Dental restorations.


Omid Savabi, Farahnaz Nejatidanesh, Mitra Shabanian, Zahra Anbari

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