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논문 기본 정보

자료유형
학술저널
저자정보
Joon-Ho Jung (Gangnam Severance Hospital Yonsei University College of Dentistry Seoul Korea) Ji-Hoon Ko (Gangnam Severance Hospital Yonsei University College of Dentistry Seoul Korea) Jeong-Kui Ku (Gangnam Severance Hospital Yonsei University College of Dentistry Seoul Korea) Jae-Young Kim (Gangnam Severance Hospital Yonsei University College of Dentistry Seoul Korea) Jong-Ki Huh (Gangnam Severance Hospital Yonsei University College of Dentistry Seoul Korea)
저널정보
대한구강악안면외과학회 대한구강악안면외과학회지 대한구강악안면외과학회지 제48권 제5호
발행연도
2022.10
수록면
297 - 302 (6page)
DOI
10.5125/jkaoms.2022.48.5.297

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Objectives: This retrospective study aimed to analyze data on nerve damage in patients who complained of sensory changes after dental implant sur-gery, the clinical results according to proximity of the implant fixture to the inferior alveolar nerve (IAN) canal, and the factors affecting recovery of sensation. Materials and Methods: The electronic medical records of 64 patients who had experienced sensory change after implant surgery were reviewed. Patients were classified by sex, age, implant installation sites, recovery rate and the distance between the implant fixture and IAN canal on computed tomography (CT). The distance was classified into Group I (D>2 mm), Group II (2 mm≥D>0 mm), and Group III (D≤0 mm). Results: The 64 patients were included and the mean age was 57.3±7.3 years. Among the 36 patients who visited our clinic more than two times, 21 patients (58.3%) reported improvement in sensation, 13 patients (36.1%) had no change in sensation, and 2 patients (5.6%) reported worsening sensa-tion. In Group II, symptom improvement was achieved in all patients regardless of the removal of the implant fixture. In Group III, 8 patients (40.0%) had reported symptom improvement with removal of the implant fixture, and 2 patients (33.3%) of recovered patients showed improvement without removal. Removal of the implant fixture in Group III did not result in any significant difference in recovery (P=0.337), although there was a higher possibility of improvement in sensation in removal cases. Conclusion: Clinicians first should consider removing the fixture when it directly invades the IAN canal. However, in cases of sensory change after dental implant surgery where the drill or implant fixture did not invade the IAN canal, other indirect factors such as flap elevation and damage due to anesthesia should be considered as causes of sensory change. Removal of the implant should be considered with caution in these situations.

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