Objectives: The aim of this study was to radiographically evaluate the bone loss of immediate load implants using cantilever Ti c.p. casted fixed prosthesis placed in the posterior area of the mandible. Methods: For the experiment, lower right first molars plus third and fourth premolars of ten adult dogs were removed. After a six-month healing period, each animal received three Brånemark system standard implants, 10mm in length and 3.75mm in diameter, under general anesthesia. These implants received multi-unit abutments, titanium cylinders and the Ti c.p. fixed prosthesis, within 48 hours after surgery. Biofilm control was carried out with gauze scrubbing, tooth brushing and chlorhexidine gluconate (0,12%) solution twice a week. Clinical and radiographical evaluation using periapical and digital radiographies were performed during three months. Results: No statistically significant differences were found in the clinical evaluation of the peri-implant areas based on the following parameters: mobility, probing dept and plaque index. The peri-implant bone loss was 19% more in the distal aspect showing a statistically significant difference based in the Qui-square test, p=0,011, mesial and p=0,006, distal aspects. The percentage of cumulative distribution of the peri-implant bone loss between periapical and digital radiographs revealed no statistically significant differences. Conclusion: Bone loss of the 1mm and 2mm height were observed in 65% of the implants. The overall implant success was 86,67%, suggesting that bone response to immediate loading of Ti c.p. cantilever fixed prosthesis did not inhibit the peri-implant tissue from healing.

Back to the Implantology Research Program
Back to the IADR/AADR/CADR 82nd General Session (March 10-13, 2004)

Top Level Search