Surface roughness of composite resins after finishing and polishing

Brazilian Dental Journal

Halim Nagem Filho²  Maria Tereza Fortes Soares D'azevedo¹  Haline Drumond Nagem²  Fernanda Pátaro Marsola² 

[1] ,University of São Paulo School of Dentistry Bauru SP ,Brazil

关键词: composite resin;    surface roughness;    polishing;    resina composta;    rugosidade superficial;    polimento;   

DOI  :  10.1590/S0103-64402003000100007

来源: SciELO

【 摘 要 】

This study evaluated the effect of surface finishing methods on the average surface roughness of resin composites. Seven composites and two polishing systems were used. One hundred and twenty-six conical specimens of each material were prepared in stainless steel molds against a polyester strip. Forty-two of them remained intact and were used as controls. Each half of the remaining samples was polished with either diamond burs or diamond burs + aluminum oxide discs. The results showed no statistical difference in average surface roughness (Ra, µm) between the polyester strip and aluminum oxide discs (p>0.05). However, finishing with diamond burs showed a statistically higher average roughness for all composites (p<0.05). Statistical differences were detected among materials (p<0.05) in the use of diamond burs.

【 授权许可】

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