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- 2018
成人安氏Ⅱ类患者上切牙唇侧牙槽骨厚度的CBCT研究
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Abstract:
摘要 目的: 通过CBCT研究成人安氏Ⅱ类患者上切牙不同位点的唇侧牙槽骨厚度。方法: 选取符合纳入标准的150例CBCT片,其中安氏Ⅱ1 组、安氏Ⅱ2组、个别正常牙合组各50例,在牙体长轴矢状面上对上切牙唇侧牙槽骨厚度进行测量,然后计算唇侧牙槽骨占总牙槽骨厚度的百分比。结果: 1)不同位点的唇侧牙槽骨厚度,个别正常牙合组最大,安氏Ⅱ1组次之,安氏Ⅱ2组最小;其中在根尖部位安氏Ⅱ1组最大,个别正常牙合组次之,安氏Ⅱ2组最小。2)根尖部唇侧牙槽骨厚度最大,根中部和根颈部较小,有统计学差异。结论: 上切牙唇侧牙槽骨厚度与错牙合的类型有关,除中切牙根尖区外,其它部位唇侧牙槽骨厚度均小于2 mm,唇侧牙槽骨占总牙槽骨厚度的百分比不足20%
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