Stability evolution of Alfa Gate Bioactive Coating® implants during healing

Abstract

To investigate the early outcome of a dental implant with bioactive Calcium-phosphate (CaP) coating in the first 6 week of usage in mandibular clinical situations, for determenatin if it is possible early prosthetic loading by measurements with Osstell and resonance frequency analysis (RFA), and bone density. Materials and methods: Study of the 6 weeks function of 16 oral implants in 6 patients, in the mandibular clinical situations we have evaluated the clinical and paraclinical parameters to predict implant outcomes.We initiated a short- term prospective study on Bioactive Alfa Gate implants. The following para clinical analyses were determined to access the necessary dates for success and survive rate of implants: The implant primary and changed stability of 6 weeks stability (the resonance frequency analysis (Osstells Mentor® (RFA) Osstell AB, Gothenburg, Sweden) which was done weekly and the result was registered to make the statistical comparison. All surgeries were performed under local anaesthesia with 3 patient with open flap and 3 with flapless access to the bone. Osteotomy preparations of neo alveolas were performed with low speed high-torque drill units using intense irrigation with a cold saline solution. During each site preparation of the neo alveolas for the implants, the bone quality II to III was recorded. All implants were placed manually and final torque was measured with a manual torque control wrench with result of 35-45 Ncm. And each implant was covered with healing abutment for easy access for the quantitative evaluation of implant stability, RFA was recorded with the Osstell Mentor device. Orthopantomographic X-ray images were used for calculation of radiological bone loss and the respective success criterion Results: The ISQ testing for signs of initial and changed stability of 6 weeks after implantation could show notable result. The ISQ values of the stability could be estimated for the implants at the time of healing abutment placement. Statistically results demonstrate that implants present a better stability after 6 weeks post insertion. The ISQ mean values for the 16 implants prosthetic rehabilitated after 6 week of healing period were 70.75 comparing with 67.63 mean ISQ value after implant placement, the lowest ISQ mean values was 64.63 wich was registered in week 1 after the implantation. From week 2 till week 6 was in a continue increase in ISQ values. Panoramic radiographs based on the twodimensional availability, While looking at the peri-implantary loss of bone the wasn’t observed Conclusion: The clinical and para-clinical outcomes in this study indicate a high stability value after 6 weeks, and we had the possibility of prosthetic treatment after the studied time.