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자료유형
학술저널
저자정보
You, Tae Min (Department of Advanced General Dentistry, College of Dentistry, Dankook University) Kim, Kee-Deog (Department of Advanced General Dentistry, College of Dentistry, Yonsei University) Huh, Jisun (Department of Advanced General Dentistry, College of Dentistry, Yonsei University) Woo, Eun-Jung (Department of Advanced General Dentistry, College of Dentistry, Yonsei University) Park, Wonse (Department of Advanced General Dentistry, College of Dentistry, Yonsei University)
저널정보
대한치과마취과학회 Journal of dental anesthesia and pain medicine Journal of dental anesthesia and pain medicine 제15권 제3호
발행연도
2015.1
수록면
113 - 119 (7page)

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Background: The inferior alveolar nerve block (IANB) is the most common anesthetic techniques in dentistry; however, its success rate is low. The purpose of this study was to determine the correlation between IANB failure and mandibular skeletal characteristics Methods: In total, 693 cases of lower third molar extraction (n = 575 patients) were examined in this study. The ratio of the condylar and coronoid distances from the mandibular foramen (condyle-coronoid ratio [CC ratio]) was calculated, and the mandibular skeleton was then classified as normal, retrognathic, or prognathic. The correlation between IANB failure and sex, treatment side, and the CC ratio was assessed. Results: The IANB failure rates for normal, retrognathic, and prognathic mandibles were 7.3%, 14.5%, and 9.5%, respectively, and the failure rate was highest among those with a CC ratio < 0.8 (severe retrognathic mandible). The failure rate was significantly higher in the retrognathic group than in normal group (P = 0.019), and there was no statistically significant difference between the other two groups. Conclusions: IANB failure could be attributable, in part, to the skeletal characteristics of the mandible. In addition, the failure rate was found to be significantly higher in the retrognathic group.

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