15歳生徒における歯周疾患調査 : そのII 歯槽骨の吸収に関して

概要

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The purpose of this study was to determine the alveolar bone resorption of 437 high school students of 15 years old in Tokyo, Japan. The roentgenographic examinations on bite-wing method were performed about mesial and distal areas of maxillary and mandibular first molars. Alveolar bone resorptions exceeding 2mm from cement-enamel junction (CEJ) were found at 41 areas of 37 persons. This means bone resorption was occurred at 8.5 per cent of 15 years old students and 1.3 per cent of total mesured points. It was observed that vertical resorptions were more frequent in upper and mesial areas of first molars. The statistical difference was found (p<0.05) between the bone resorption group and the normal group in regard to the mean of Gingival Index.
特定非営利活動法人日本歯周病学会の論文
1982-09-28