The effect of polishing techniques on the surface roughness of a feldspathic porcelain Efeito de técnicas de polimento sobre a rugosidade superficial de uma porcelana feldspática
نویسندگان
چکیده
Methods: Forty disc-shaped specimens were fabricated with a feldspathic porcelain (Super Porcelain EX3), glazed, and randomly divided into 4 experimental groups and 1 control group (n=8/group). For the experimental groups, the glazed layer was ground with a diamond rotary instrument, and the surface was polished with: rubber points (Edenta), steel finishing burs (Meisinger), silicon rubber point (Shofu) + diamond felt wheel (FGM) + diamond paste (Diamond Excel, FGM), or aluminum oxide discs (Sof-Lex, 3M-ESPE) + diamond felt wheel + diamond paste. Surface roughness (Ra) was measured profilometrically. Data were analyzed by analysis of variance and Tukey test (α=5%).
منابع مشابه
Effects of different polishing techniques on the surface roughness of dental porcelains
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