应用全颌曲面断层片研究牙周炎骨密度的改变

selina

冯齐平  潘晓岗  刘晓峰  钱玉芬

上海交通大学医学院附属第九人民医院口腔医学院正畸科  200011(冯齐平  潘晓岗  钱玉芬)  口腔内科(刘晓峰)



【摘要】目的：应用PMI指数评价颌骨的骨密度，检测牙周炎患者的下颌骨骨密度改变。方法：选择成人慢性牙周炎患者的全颌曲面断层片30 例，相应年龄和性别分布的无牙周炎的全颌曲面断层片30 例作为对照，采用PMI指数测量样本的下颌骨骨密度并进行分析。结果：正常组sPMI值为0.275 0±0.034，iPMI值为0.527 3±0.096，牙周炎患者sPMI值为0.223 3±0.024，iPMI值为0.367 3±0.069，2 组的PMI指数具有显著差异，且与年龄相关。结论：牙周炎患者下颌骨骨密度值较正常组低。PMI指数反映了下颌骨皮质骨量的变化，间接反映颌骨的骨密度，为检测颌骨骨密度的改变提供简便、直观的方法。



【关键词】   全颌曲面断层片；骨密度；PMI；牙周炎

Dental panoramic radiograph as a tool for detecting bone mineral density in young adults with moderate periodontitis

Feng Qiping, Pan Xiaogang, Liu Xiaofeng, et al. Department of Orthodontics,Ninth People' Hospital, Medical School of Shanghai Jiaotong University, Shanghai 200011,China



【Abstract】 Objectives:To clarify whether the bone mineral density (BMD) differed from normal and whether the mandibular BMD changed with age in young adults with moderate periodontitis. Methods:30 patients (20-35 years old) with moderate adult periodontitis and 30 individuals (20-35 years old) with normal periodontal condition as control group were included in present study. BMD of the mandible was measured using panoramic mandibular index(PMI) from panoramic radiographic film. Results: The sPMI and iPMI value were 0.275 0±0.034 and 0.527 3±0.096 (normal group), 0.223 3±0.024 and 0.367 3±0.069 (periodontitis patients) respectively.The PMI value of periodontitis patients was significantly decreased compared to that of normal group, and showed a significant correlation with age. Conclusions: Moderate periodontitis in young adults seem to be a local disorder associated with relatively low PMI in the jaws. Age-related decrease in mean PMI with increasing age in both normal and periodontitis patients is founded.Dental panoramic radiograph may serve as a simple tool in mandibular BMD defection.



【Key words】  Panoramic radiography;Bone mineral density;Panoramic mandibular index;Periodontitis

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selina，谢谢你的论题和摘要，有正文吗，希望你也能给我们学习指导，呵呵