Avaliação macroscópica e microscópica do cimento Portland comum - CP I e do cimento Portland branco não estrutural - CPB incluídos na calvária de ratos / Macroscopic and microscopic evaluation of Portland Cement Joint - CP I and the Portland Cement White not structural - CPB included in the skull of rats

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The biomaterials can be defined as substances of natural or synthetic origin that are tolerated on a temporary or permanent by the various tissues that make up the organs of living beings. Among these biomaterials can quote the mineral trioxide aggregate (MTA), which was developed at the University of Loma Linda, in the 90s. Since then, it stopped work on research involving this material and Portland cement (PC), which although not a dental material to use direct, one can say that basically has the same chemical components of the ATM. The purpose of this study was to evaluate the biocompatibility of common Portland cement (PC-I) and the white Portland cement (CPB) no structural, included in the skull of rats. Twenty rats were selected, two were previously used as a pilot group and the eighteen others were divided into three groups of six rats that were killed and evaluated in experimental stroke, 30, 60, and 90 days. Each animal received an implant, three of Common Portland Cement (PC-I) and three of White Portland Cement (CPB). The results show that there were no consequences of a microbial proliferation in any of cement and times searched. There was also the formation of bone tissue with characteristics of immaturity, showing gaps in some areas without osteocytes; presence of moderate and cell tissue, richly vascularized, showing characteristics of biocompatibility, and the potential for bone and cell differentiation.

ASSUNTO(S)

mineral trioxide aggregate (mta) biocompatibility cimento portland (cp) biocompatibilidade portland cement (pc) agregado de trióxido mineral (atm)

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