RESULTS OF DENTAL IMPLANTS RESEARCH BY MEANS OF RESONANCE FREQUENCY ANALYSIS IN PATIENTS WITH OSTEOPLASTIC SURGERY PERFORMED FOR AUGMENTATION OF DEFICIENT ALVEOLAR RIDGE

The use of dental implants being the intraosseous artificial fixtures is often required for orthopedic rehabilitation of completely edentulous patients; for their placement, adequate amount of bone tissue is needed, which in many cases is insufficient due to physiological bone loss, long-term wearing of full dentures, the duration of edentulism and complex clinical situations caused by maxillofacial injuries or general somatic diseases. Implant placement in the above situations requires timely preparation of deficient alveolar ridge by means of osteoplastic surgery. In its turn, the newly formed regenerated bone by its histological, physicomechanical and structural-functional properties can only approach the recipient bone tissue; therefore, the issue of implant osseointegration and its functional loading in regenerated bone remains debatable. This research uses the method of frequency-resonance analysis showing implant stability coefficient numerically equal to the ISQ (Implant stability Quotient) values and reflecting the percentage of the osseointegration area of the intraosseous part of the implant. The results of research obtained by means of frequency-resonance analysis have proved that with the timely start of implant usage and adequate functional loading, ISQ values increase, that is, increases the osseointegration area along the interface of the intraosseous part of the implant placed in regenerated bone. Comparative results of research reflecting ISQ values in 12 months after implant placement in bone augmented using various forms of autogenous bonegrafts, have been presented; therefore, a conclusion can be made that there is a direct relationship between osseointegration under conditions of functional chewing load and the shape and size of autogenous bonegrafts.