Juvenile periodontitis. Localization of bone loss in relation to age, sex, and teeth.
Juvenile periodontitis. Localization of bone loss in relation to age, sex, and teeth.
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青少年牙周炎。
DOI：
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发表时间：
1979
影响因子：
6.7
通讯作者：
A. Frandsen
中科院分区：
文献类型：
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作者：
J. Hørmand;A. Frandsen
对156例12 ~ 32岁的青少年牙周炎患者，按年龄、性别、患牙情况进行骨质流失分布分析。骨质流失的标准是：通过x线片判断的纵向或横向骨质流失超过三分之一的牙根。分为12-18岁、19-25岁和26-32岁三个年龄组。定义了三种类型的骨丢失定位：I.第一磨牙和/或门牙。2。第一磨牙，门牙和一些额外的牙齿（总共少于14颗牙齿）。3。全面参与。女性患者占主导地位。男女比例从最年轻年龄组的5.3:1下降到最年长年龄组的1.5:1。平均受累牙齿数目随年龄增长而增加，从最年轻组的5.3颗牙齿增加到最年长组的11.6颗牙齿。I型骨质流失的频率从最年轻组的55%下降到最年长组的7%。在所有三个年龄组中，II型的发生率相同（55-58%）。第三型在最年轻的一组中没有发现，而在最老的一组中，它从中间的17%增加到35%。在所有受累的牙齿中，第一磨牙最常受影响，其次是门牙。上颌牙受累程度略高于下颌骨，左右半颌受累牙之间存在较强的“镜像效应”。
The distribution of bone loss in 156 patients, 12-32 years old, with juvenile periodontitis was analyzed according to age, sex, and teeth affected. The criteria for bone loss were: vertical or horizontal bone loss involving more than one-third of the root as judged by radiographs. Three age groups were established: 12-18, 19-25, and 26-32 years old. Three types of bone loss localization were defined: I. First molars and/or incisors. II. First molars, incisors and some additional teeth (total less than 14 teeth). III. General involvement . There was a dominance of female patients. The ratio females: males decreased from 5.3:1 in the youngest age group to 1.5:1 in the oldest. The mean number of involved teeth increased with age from 5.3 teeth in the youngest group to 11.6 in the oldest. The frequency of type I bone loss decreased from 55% in the youngest group to 7% in the oldest. Type II occurred with the same frequency (55-58%) in all three age groups. Type III was not seen in the youngest group whereas it increased from 17% in the middle to 35% in the oldest group. Of the total number of involved teeth, the first molars were most frequently affected, followed by the incisors. Maxillary teeth were involved to a slightly higher degree than mandibular teeth, and there was a strong "mirror effect" between involved teeth of right and left jaw halves.