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KMID : 0358920110380040368
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Journal of the Korean Academy of Pedodontics
2011 Volume.38 No. 4 p.368 ~ p.375
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A STUDY ON THE POSITION OF THE MANDIBULAR FORAMEN IN KOREAN CHILDREN USING PANORAMIC RADIOGRAPHS
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Hong So-Yi
Jung Seo-young
Mah Yon-Joo
Jung Young-Jung
Ahn Byung-Duk
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Abstract
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The aim of this study was to evaluate the position of the mandibular foramen in panoramic radiographs of Korean children to provide information for successful inferior alveolar nerve block anesthesia. 240 panoramic radiographs of 7 to 15-year-old boys and girls were analyzed. The subjects were divided into 4 groups in boys and girls according to their age.; 7-8, 9-10, 11-12 and 13-15 years old. The shortest distances from the center of the mandibular foramen to the anterior border of ramus, to the posterior border of ramus, to the antegonial notch and to the mandibular notch and the perpendicular distances from the center of the mandibular foramen to the occlusal plane were measured. The following results were obtained. 1) Although the relative position of the mandibular foramen in the ramus of mandible tended to move anteriorly for both genders with age, the vertical position did not correlate with age. 2) The mandibular foramen moved upward in relation to the occlusal plane with age, and showed statistically significant correlation with age(p<0.05). 3) The mandibular foramina of boys, when compared to those of girls, were located more superiorly in relation to the occlusal plane and more superiorly and posteriorly in the ramus of mandible.
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KEYWORD
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Mandibular foramen, Occlusal plane, Ramus of mandible, Children
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