BRANEMARK AND FRIALIT IMPLANTS FOR THE REHABILITATION OF GRAFTED MAXILLA: A 6-12-YEAR STUDY (poster)

Aim. The aim of the present study was to evaluate whether there was a difference between implants with a machined- or a rough-surface placed after Le Fort 1 osteotomy and interpositional iliac bone grafts regarding survival, success rate and marginal bone loss during a 6- to 12 year observation period. Materials and Methods. Twelve patients with extremely resorbed maxillae were subjected to Le Fort 1 advancement and interpositional bone grafts. After 4-5 months 104 implants were inserted (from a minimum of 5 up to 12): 53 Brånemark machined implants and 51 Frialit 2 implants with TPS coating. Implants were surgically exposed 6-7 months later. All the patients received fixed proshesis. Clinical and radiographical examinations of the bone grafts and implants were evaluated in all cases. Results. The Frialit group was followed up for a mean period of 100±18.06 (range 72–120) months and Branemark group for 104±29.06 (range 72–144) months. During the whole observation period, 10.6% (11/104) of all implants were lost. Frialit implants had the highest survival and success rate (92.2% and 68.7%, respectively), than group 2 (Branemark implants) (86.8% and 66%, respectively), but the difference was not statistically significant (P=0.8235). The mean marginal bone loss was 2.88 mm (SD. 0.83) for the Branemark group and 2.69 mm (SD. 0.75) for the Frialit group. No significant difference was found (p=0. 059). Conclusion. The results of this study showed that Branemark and Frialit implants had comparable survival and success rate and marginal bone loss in autogenous grafted maxillary bone.