Estudo do desgaste abrasivo das resinas compostas disponíveis no mercado brasileiro

Materials Research

Eduardo Carlos Bianchi²  Paulo Roberto De Aguiar²  Márcio Rodrigo Poggi²  Manoel Henrique Salgado²  César Antunes De Freitas²  Ana Rita Rodrigues Bianchi¹ 

[1] ,Universidade Estadual Paulista Faculdade de Engenharia Depto de Eng. Mecânica /ElétricaBauru SP ,Brasil

关键词: composite resin;    abrasive wear;    evaluation methods;    aggressiveness;   

DOI  :  10.1590/S1516-14392003000200022

来源: SciELO

【 摘 要 】

This work presents a proposal to assess the abrasive wear of composite resins available in the national market, which are materials largely used in dental clinics for functional and aesthetic tooth restorations. This was achieved by utilizing an experimental set-up on which a dynamic disc covered with proper porcelain (representing hardness close to the human teeth) wears a static disc covered with the resin tested under a constant and pre-determined load. Thus, by means of this set-up and keeping a behavioral status needed to the calculus for all tests, the aggressiveness (referred as to letter k) for all tests was analyzed. Due to the fact that resin characteristic revels how weary the material has become to the abrasion process with other harder material, the strength to wear for such resins was observed. Therefore, a real classification for these materials with their strength to the abrasion wear was made, which is a very important factor in the influence on their lifetime in dental restorations. The classification in descending order for those resins is presented as following: HELIOMOLAR RO, DURAFILL, FILTEK A110, HELIO FILL, POINT 4, FLOW IT; NATURAL FLOW, SUPRAFILL, FILTEK P60, FILTEK Z250, TETRIC FLOW, REVOLUTION, PRODIGY, TETRIC CERAM, HERCULITE, FILLMAGIC, TPH, CHARISMA, Z100.

【 授权许可】

CC BY   
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