山东大学学报(医学版) ›› 2015, Vol. 53 ›› Issue (2): 75-80.doi: 10.6040/j.issn.1671-7554.0.2014.378
李德水1,2, 刘盼盼1,2, 史晓昕1,2, 郭泾1
LI Deshui1,2, LIU Panpan1,2, SHI Xiaoxin1,2, GUO Jing1
摘要: 目的 探究正畸美学区,包括面下1/3前牙区牙槽骨、切牙位置以及唇部软组织在不同矢状面型、年龄及性别之间的差异性.方法 2012年6月至2013年5月间在山东大学口腔医院进行治疗的60例12~50岁汉族人,根据不同矢状骨面型、性别和年龄分组.根据头影测量ANB的角度分为3组:骨性Ⅰ类(1° < ANB≤ 5°,23例,38.3%),骨性Ⅱ类(ANB>5°,18例,30%),骨性Ⅲ类(ANB≤1°,19例,31.7%);根据性别分组:女性41例(68.3%),男性19例(31.7%);根据年龄分组:青少年组12~19岁22例(36.7%),青年组20~29岁20例(33.3%),中年组30~50岁18例(30%).分别进行锥形束CT(CBCT)测量分析.骨性分组以及年龄分组采用方差检验和多个独立样本检验( Kruskal-Wallis检验),性别组间用独立样本t检验.结果 ①不同矢状骨面型之间,骨性Ⅱ类患者前牙区牙槽骨及切牙过度萌出,骨性Ⅲ类患者下唇缘点的唇厚度最小;②不同性别之间,骨和软组织的各项测量值男性均大于女性;③随年龄增长,切牙区牙槽骨的高度、切牙的位置以及唇部软组织变化明显,而牙槽骨的宽度和骨皮质厚度基本稳定.结论 正畸美学区在不同的矢状面型、性别和年龄间呈现一定的变化规律,有利于指导临床决策.
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