Bondarets N V
Stomatologiia (Mosk). 1990 May-Jun;69(3):72-5.
Analysis of 1516 orthopantomograms of the jaws has revealed hypodontia in 256 (16.88%) cases, in 119 (46.48%) of these more than 10 permanent teeth were missing. A total of 182 lateral teleroentgenograms of the head were analyzed, recorded in 63 subjects with orthognathic occlusion, in 85 ones with abnormal occlusion due to hypodontia, and in 34 ones with hypodontia combined with anhidrotic ectodermal dysplasia. Typical disorders of facial skeleton structure in hypodontia and anhidrotic ectodermal dysplasia were defined with due consideration for the period of occlusion formation.
对1516张颌部全景X线片的分析显示,256例(16.88%)存在牙缺失,其中119例(46.48%)缺失超过10颗恒牙。共分析了182张头部侧位远距X线片,这些片子记录于63例正颌咬合的受试者、85例因牙缺失导致咬合异常的受试者以及34例牙缺失合并无汗性外胚层发育不良的受试者。在充分考虑咬合形成时期的情况下,确定了牙缺失和无汗性外胚层发育不良中面部骨骼结构的典型紊乱情况。