Contaminación por aleación de co-cr-mo durante el pulido de estructuras de prótesis dental parcial removible

Abstract

Introduction: The removable partial denture is one of the most widely used dentistry rehabilitations, usually they are made in base metal due to their cost and mechanical properties, but cytotoxicity problems and carcinogenic potential associated with ion release and particle shedding have been reported. Materials and Method: A removable prosthesis structure was polished for 30 minutes, the particles detached during the procedure were collected in a goosebumps barrier, divided into fragments and each fragment was checked in a stereoscopic microscope determined in average number of particles and the average size of them Results: An average number of 88,600 received for half an hour and particle sizes were found in a range of millimeter fractions to centimeter fractions Conclusions: During the polishing process of a metal structure for removable prosthesis the operator is exposed to a high risk due to the number of particles he receives and the harmful potential of its components