摘要
目的探讨曲面体层下颌指数(panoramic mandibular index,PMI)与牙周炎严重程度的相关性。方法选取慢性牙周炎患者(慢性牙周炎组)、侵袭性牙周炎患者(侵袭性牙周炎组)及牙周健康者(牙周健康组)各60例,拍摄标准化数字式曲面体层片,计算机软件处理获得各样本牙槽骨高度、颏孔下缘至下颌骨下缘的距离、下颌骨下缘皮质骨厚度(cortical width,CW)及PMI,并进行统计学分析。结果牙周健康组牙槽骨高度为(15.65±2.63)mm,慢性牙周炎组为(15.49±2.54)mm,侵袭性牙周炎组为(11.31±2.72)mm,3组差异具有统计学意义(P<0.001);牙周健康组PMI为0.31±0.08,慢性牙周炎组为0.30±0.05,侵袭性牙周炎组为0.28±0.09,侵袭性牙周炎组与慢性牙周炎组之间的差异具有统计学意义(P=0.014)。结论与正常人相比,慢性牙周炎患者和侵袭性牙周炎患者的牙槽骨高度及PMI均有所降低,PMI与牙周炎严重程度可能有相关性,可望用于评价牙周炎严重程度。
Objectives To compare the mandibular indices differences between chronic periodontitis,aggressive periodontitis and non-periodontitis subjects by digital panoramic tomograms in order to discuss the possible correlation between panoramic mandibular index( PMI) and the severity of periodontitis.Methods Standard digital panoramic tomograms of sixty chronic periodontitis subjects,aggressive periodontitis subjects and non-periodontitis subjects were taken.Height,cortical width( CW) and panoramic mandibular index of alveolar bone were measured on the digital panoramic tomograms.SPSS 13.0 was used for statistics analyses.Results The height of alveolar bone value( H) were( 15.65 ± 2.63) mm( normal group),0.31 ± 0.08( chronic periodontitis patients),0.28 ± 0.09( aggressive periodontitis patients) respectively,The PMI value were 0.31 ± 0.08( normal group),0.30 ± 0.05( chronic priodontitis patients),and 0.28 ± 0.09( aggressive periodontitis patients) respectively,with a significant difference( P = 0.000).The PMI value of aggressive periodontitis patients was significantly decreased compared to that chronic periodontitis( P = 0.014).Conclusion Compared with the non-periodontitis subjects,the chronic periodontitis subjects and aggressive periodontitis have alveolar bone height loss and PMI decreased significantly.The bone mineral density of aggressive periodontitis has reduced as well.
出处
《广东牙病防治》
2013年第12期637-640,共4页
Journal of Dental Prevention and Treatment
基金
南京市医学科技发展项目(YKK12124)
关键词
曲面体层片
牙周炎
曲面体层下颌指数
Panoramic radiography
Periodontitis
Panoramic mandibular index
