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Influence of different surface finishing techniques on machinable feldspathic and leucite-reinforced ceramics
(Japanese Soc Dental Materials Devices, 2019) Gonuldas, Fehmi; Ozturk, Caner; Atalay, Pelin; Oztas, Derya
The effect of surface finishing techniques on machinable ceramics to obtain optimum smoothness is unclear. The aim of the study was to evaluate the effects of surface finishing techniques on machinable feldspathic and leucite-reinforced ceramics. Forty specimens were divided into four subgroups according to surface finishing techniques and ceramic structure. A profilometer was used to evaluate surface roughness. A spectrophotometer was used to obtain the CIE L*, a* and b* coordinates. All specimens were subjected to a threepoint bending test to determine flexural strength. All data were analyzed with two-way ANOVA and Tukey's HSD tests (p<0.05). Polishing techniques were found to be more effective than the glazing method to obtain smooth surfaces. Glazing technique increased the flexural strength of leucite-reinforced ceramics. Finishing procedures have different effects on the success of the restorations and must be considered by the clinicians.