Hintze H, Wenzel A, Williams S
Department of Radiology, Royal Dental College, Aarhus, Denmark.
Eur J Orthod. 1990 Nov;12(4):385-8. doi: 10.1093/ejo/12.4.385.
Ninety children in the 5th school grade (means age = 11.9 years) participated in this investigation. As part of the orthodontic screening examination, pantomograms of all children had been performed as a routine procedure. Prior to assessment of the pantomograms each child was assigned to one of the following treatment categories based on clinical examination: -T (no indication for orthodontic treatment), O (observation of dentition development) and +T (indication for orthodontic treatment). Children, in whom clinical symptoms gave rise to a radiographic examination, were selected and their pantomograms assessed. Finally, the pantomograms of all children were interpreted, and the clinically established treatment categories re-evaluated on basis of the findings on the pantomograms. Fifteen children were selected for pantomography, but only one changed treatment category (from O to +T) due to observation of developmentally missing premolars. Three of the children not selected for pantomography changed categories from -T; two to O and one to +T. Clinical examination with selective pantomography was thus able to correctly identify 97 per cent of children in need of immediate orthodontic treatment, while it was able to correctly exclude 94 per cent of the healthy children. On the basis of these results, routine screening pantomography may be omitted.
第五学年的90名儿童（平均年龄=11.9岁）参与了此项调查。作为正畸筛查检查的一部分，所有儿童的全景片均作为常规程序进行拍摄。在评估全景片之前，根据临床检查将每个儿童分配到以下治疗类别之一：-T（无正畸治疗指征）、O（观察牙列发育）和+T（正畸治疗指征）。选择因临床症状而进行影像学检查的儿童，并对其全景片进行评估。最后，对所有儿童的全景片进行解读，并根据全景片的检查结果对临床确定的治疗类别进行重新评估。15名儿童被选作全景片检查，但只有一名儿童因观察到发育性前磨牙缺失而改变了治疗类别（从O变为+T）。未被选作全景片检查的儿童中有三名从-T类别改变：两名变为O，一名变为+T。因此，临床检查结合选择性全景片检查能够正确识别97%需要立即进行正畸治疗的儿童，同时能够正确排除94%的健康儿童。基于这些结果，常规筛查全景片检查可以省略。
