ASSESSMENT OF BONE LOSS IN PERIODONTITIS FROM PANORAMIC RADIOGRAPHS
ASSESSMENT OF BONE LOSS IN PERIODONTITIS FROM PANORAMIC RADIOGRAPHS
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DOI：
10.1111/j.1600-051x.1988.tb01564.x
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发表时间：
1988-03-01
影响因子：
6.7
通讯作者：
ASHLEY, FP
中科院分区：
文献类型：
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作者：
KAIMENYI, JT;ASHLEY, FP
慢性牙周炎中的骨质流失是通过全景X光片通过直接测量牙骨质-牙釉质接合处（CEJ）并测量由骨支撑的牙齿长度的比例来评估的。对 50 名年龄在 30-39 岁接受牙周治疗的患者的所有可用牙齿的近中和远中骨水平进行了评估。 85%和74%的表面分别可以通过比例和直接技术测量，根据比例评分，27%的表面没有骨质流失，而22%的表面CEJ到牙槽骨的距离小于2毫米。此外，超过一半的比例骨丢失评分为零的表面的 CEJ 到牙槽骨的距离为 2 毫米或更长，并且对于每个比例骨丢失评分，记录的 CEJ 到牙槽骨的距离有相当大的重叠。通过与牙周手术中的直接测量进行比较，确定了 CEJ 对牙槽骨测量的有效性。结果支持在通过全景 X 线照片研究骨丢失时，使用从 CEJ 到牙槽骨的直接测量，而不是评估牙齿长度在骨内的比例。这个 30-40 岁牙周患者群体平均有 50% 的部位 CEJ 到牙槽骨的距离为 3 毫米或更长，在这些部位，平均有 2.1 毫米的额外骨丢失。
Bone loss is chronic periodontitis was assessed from panoramic radiographs by direct measurement from the cemento-enamel junction (CEJ) and by measuring the proportion of the tooth length supported by bone. Mesial and distal bone levels of all available teeth were assessed for 50 patients aged 30-39 years referred for periodontal treatment. 85% and 74% of surfaces were measureable by the proportional and direct techniques, respectively, 27% of surfaces had no bone loss according to the proportional score, whereas 22% had a CEJ to alveolar bone distance of less than 2 mm. In addition, over half the surfaces with a proportional bone loss score of zero had a CEJ to alveolar bone distance of 2 mm or more, and for each proportional bone loss score, there was considerable overlap in the CEJ to alveolar bone distances recorded. The validity of the CEJ to alveolar bone measurements was established by comparison with direct measurements at periodontal surgery. The results support the use of direct measurement from the CEJ to alveolar bone rather than the assessment of the proportion of the tooth length within the bone when investigating bone loss from panoramic radiographs. This population of 30-40-year-old periodontal patients had a mean of 50% of sites with a CEJ to alveolar bone distance of 3 mm or more, and at such sites, there was a mean additional bone loss of 2.1 mm.