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作者用X线摄影检查上中切牙间隙畸形小儿75例,中切牙间隙1.8～6.5mm,年龄6～14岁。对照组为切牙排列正常的小儿63例。用相同的投照参数作X线摄影,研究前部腭缝的宽度和中切牙牙槽间隔的形态.有60例经过正畸治疗牙间隙消失以后X线摄影复查。结果表明上中切牙排列正常的小儿,腭缝较窄,牙槽间隔顶多为锐利型。中切牙间隙畸形,腭缝较宽,牙槽间隔顶扁平型增多,可能同牙间龈乳头慢性损伤有关。正畸治疗消除切牙间隙,使大多数腭缝和牙槽间隔
The author used X-ray photography in the examination of upper dedentation incision deformity 75 cases of children, the incisor gap 1.8 ~ 6.5mm, aged 6 to 14 years. The control group was normal pedunculated pediatric 63 cases. X-ray photography with the same projection parameters to study the width of the anterior palatal incisors and incisor alveolar septum morphology.After 60 cases of orthodontic treatment of the disappearance of the interphalangeal radiographic review. The results show that the upper incisors arranged in normal children, the palate stenosis is narrow, mostly at the alveolar septal sharp type. Clearance deformity of the incisors, wide palate, flattened alveolar septa increased, which may be related to the chronic injury of gingival papillae. Orthodontic treatment eliminates the gap between the incisors and spaces the majority of the palate and alveolus