Comparison of Immediate and Delayed Implantation Using the Square-threaded and Resorbable-blasted-media-treated Surface Implant System

Abstract

A variety of dental implant systems are now available that optimize bone-to-implant contact. The present study was performed to compare the outcomes, by measuring peri-implant osseointegration, following immediate and delayed insertion of square-threaded and resorbable-blasted-media (RBM)-treated surface implants in the dog's mandible. Three dogs were used and four implants were inserted in each dog. All implants were used for histological and histomorphometrical evaluations. The contact lengths and osseointegrated areas following immediate implantation were 74.99% and 56.08%, and those following delayed implantation were 78.22% and 66.08%, respectively. The implantation method in dogs using the square-threaded and RBM treated surface implant system achieved higher percentages of osseointegration than previously reported and the two implantation techniques did not differentially influence osseointegration. Thus, immediate implantation of this implant system, which minimizes the number of surgical procedures, is an optimal clinical method to replace extracted teeth in dogs.