BONE PROPERTIES SURROUNDING HYDROXYAPATITE-COATED CUSTOM OSSEOUS INTEGRATED DENTAL IMPLANTS

摘要

Dental implants are widely used for replacement of teeth and correction of defects in maxillary and mandibular bone. Their effectiveness is largely dependent upon biostability and osteointegration between the bone and implant. One of the major causes of dental implant failure is aseptic loosening or resorption of bone at the interface [2]. In order to diminish such failures, coatings and surface roughening are used to enhance osteointegration and biostability between the bone and the implant [3].Hydroxyapatite (HA) is osteoconductive and biocompatible due to its natural presence in bone and has been used to enhance implants by promoting improved and more rapid fixation [2]. Little is known, however, regarding the long term interaction of bone and HA coating in custom osseous integrated dental implants (COIIs). The aim of the present study was to characterize the mechanical and histo-morphometric parameters of bone surrounding HA-coated COIIs that were clinically successful for relatively long periods of time in vivo.