Occlusion Rehabilitation After Immediate Loading of Dental Implants

Occlusion Rehabilitation After Immediate Loading of Dental Implants
P. GONG, L. WANG, G. OU, and Y. WANG, Sichuan University, Chengdu, China
March 2004
Clinical Implant Studies
Objective: The effect of immediate loading on peri-implant bone reconstruction of dental implants and the co-relationship between proper occlusive rehabilitation and immediate loading of implants was concerned.
Methods:26 endosseous implants (7 Frialit-II, 9 IMZ, 4 Sulzer, and 6 Blade) in 8 patients were classified into two groups, immediate loading and delayed loading. After prosthesis procedure, very refined occlusion modification was executed and returning visits with chewing examination were arranged for the immediate loading group. Routine clinical examinations and a digital panoramic X-ray examination were given to all implants to determine the quality and quantity of peri-implant bone. A relative density of alveolar bone and peri-implant bone were taken to eliminate the influences of the X-ray dosage. The data were analyzed in statistic method of dunnet t test using SPSS.
Results: From 1 month to 6 months after loading, the bone density increased in peri-implant area (from 0.48 to 0.51) in both immediate and delayed groups, but the increases was not supported by statistic analysis. Comparing the immediate loading and the delayed loading group, when 6 months after prosthesis' building in, the peri-implant bone density showed differences (0.51:0.44, p<0.05) while no differences were found 1 month after loading (0.48:0.43, p>0.05). Meanwhile, the clinical probing depth (PD) and bleeding index (BI) of immediate loading group also showed a mending tendency.
Conclusion:Since there are no differences found 6 months after immediate loading, it is indicated that immediate loading to the dental implants is advisable and an appropriate prosthesis treatment such as the rehabilitation of occlusion is very important for bone reconstruction. Moreover, a proper occlusion modification could benefit the immediate loading implants against the occlusive forces and do good to the reconstruction of peri-implant bone. And a study longer than 6 months is expected.