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0.2750±0.034,iPMI值为0.5273±0.096,牙周炎患者sPMI值为0.2233±0.024,iPMI值为0.3673±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。
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 periedontitis. Methods：30 patients （20 -35 years old） with moderate adult periedontitis and 30 individuals （20 -35 years old） with normal periedontal 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.Mederate periedontitis 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.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2007年第1期57-59,共3页
Journal of Practical Stomatology
关键词
全颌曲面断层片
骨密度
PMI
牙周炎
Panoramic radiography
Bone mineral density
Panoramic mandibular index
Periodontitis
