Results of determining the stability of dental implants after replacing peri-implant defects with bone substitutes

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Abstract
The article presents a study of the effectiveness of resonance frequency analysis (Osstell ISQ) for assessing the stability of dental implants in the treatment of peri-implantitis. The study involved 132 patients divided into three groups: intact (without peri-implantitis), control (bone defect management under a blood clot) and two main groups using bone substitutes - β-tricalcium phosphate granules and bone collagen blocks. The results of the study showed that in the first months after treatment, there is a decrease in implant stability, followed by a significant increase by the 12th month of observation. Patients receiving bone substitutes demonstrated a statistically significant improvement in ISQ indicators compared to the control. At the same time, the effectiveness of the two types of bone substitutes was comparable. The study confirms the value of the Osstell ISQ method as an objective and non-invasive tool for monitoring osseointegration and choosing the optimal time for the orthopedic stage of treatment. The obtained data contribute to the improvement of clinical practice in implantology and emphasize the importance of using bone substitutes in the treatment of peri-implantitis.

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