LOCAL FACTORS IN IMPACTION OF MAXILLARY CANINES
LOCAL FACTORS IN IMPACTION OF MAXILLARY CANINES
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DOI：
10.3109/00016356809004587
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发表时间：
1968-01-01
影响因子：
2
通讯作者：
JAKOBSSON, SO
中科院分区：
文献类型：
--
作者：
THILANDER, B;JAKOBSSON, SO
对192名男孩和192名女孩进行了上犬齿萌出的研究，平均年龄11.5岁。每隔6-8个月进行随访检查。未萌出的犬齿记录的帮助下，石膏和立体放射照片。记录了一系列检查中未萌出尖牙的频率，以及乳牙的持续性、毛囊间隙的扩大、未萌出尖牙的位置和相对间距以及放射学观察结果。在末次检查时（平均年龄17.8岁），总系列中有4名男孩和3名女孩（1.8%）未萌出尖牙。为了进行比较，纳入了一组年龄在22-36岁（39人）、单侧或双侧尖牙嵌塞的成年人。尖牙的腭侧位置和尖牙区的拥挤是影响上颌尖牙阻生的最重要的局部因素。
A study of the eruption of the upper canines was performed on 192 boys and 192 girls, mean age 11.5 years. Follow-up checks were performed at intervals of 6-8 months. Unerupted canines were recorded with the aid of casts and stereoradiographs. The frequency of unerupted canines at the series of examinations was recorded, as was persistence of deciduous canines, widening of the follicular space, position of unerupted canine and relative spacing and radiographic observations. At the last examination (mean age 17.8 years), there were 4 boys and 3 girls (1.8%) of the total series with unerupted canines. For the purpose of comparison, a group of adults, aged 22-36 years (39 persons), having impaction of 1 or both canines, was included. A palatal position of the canine and crowding in the canine region are the most important local factors involved in the impaction of maxillary canines.