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자료유형
학술저널
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대한악안면성형재건외과학회 Maxillofacial Plastic Reconstructive Surgery Maxillofacial Plastic Reconstructive Surgery 제42권 제4호
발행연도
2020.1
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1 - 6 (6page)

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AbstractBackground: The aim of this study was to evaluate the factors that may affect implant fixture fractures. Methods: Patients who experienced implant fixture removal at Seoul National University Bundang Hospital from2007 to 2015 due to implant fixture fracture were included. Implant/crown ratio, time of implant fracture, clinicalsymptoms before implant fracture, treatment of fractured implants, and the success and survival rate of thereplaced implants were evaluated retrospectively. Results: Thirteen implants were fractured in 12 patients. Patient mean age at the time of fracture was 59.3 years. Ofthe 13 implants, 7 implants were placed at our hospital, and 6 were placed at a local clinic. The mean crown/implant ratio was 0.83:1. The clinical symptoms before fracture were screw loosening in five implants, marginalbone loss in five implants, and the presence of peri-implant diseases in five implants. All the fractured implantswere removed, and 12 out of the 13 sites were re-implanted. Parafunctions were observed in two patients: onewith bruxism and one with attrition due to a strong chewing habit. Conclusions: Several clinical symptoms before the fracture of an implant can predict implant fixture failure. Therefore, if these clinical symptoms are observed, appropriate treatments can be taken before more seriouscomplications result.

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