Implant Stability Measurements in the Long-Term Follow-up of Dentis Implants: A Retrospective Study With Periotest

초록

Purpose: The purpose of this study was to evaluate retrospectively the stability of Dentis implant with the Periotest. Methods: In total, 36 patients and 88 implants were investigated. Periotest was used to measure implant stability, and a periapical view was taken immediately after surgery and again immediately after, 3 months after, 6 months and 5 years after prosthesis placement. Bone loss on the periapical view, bone quality according to tactile sensation, and area of implant installation were assessed. Results: The mean Periotest value (PTV) immediately after surgery was -1.02, and the mean bone loss rate (bone loss/fixture length 3 100) at 6 months after prosthesis placement was 8.42%. PTV was higher with more bone loss (types III, IV vs types I, II bone). The lowest mean PTV was in the lower molar area (-1.48), followed by the lower anterior (-1.41), upper molar (0.11), and upper anterior area (5). One implant failed and survival rates were 98.9%. Conclusion: Implant stability was lower in cases with more bone loss and poor bone quality and in the maxilla versus the mandible.

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