[Clinical investigation of impacted maxillary canine].
OBJECTIVE
To investigate the frequency, sex differences and location of impacted maxillary canine in orthodontic patients.


METHODS
Two hundred and fifteen patients (77 males and 138 females) with maxillary canine impaction were included in the study. The experimental group was gathered from the Department of Orthodontics, Peking University School and Hospital of Stomatology. CT scan images were evaluated. Chi-square test was used in the analysis.


RESULTS
The prevalence of maxillary canine impaction among Chinese orthodontic patients was 2.05%. The ratio between male and female was 1.8:1 and the ratio between buccal and palatal location was 2.1:1. Surgical exposure and orthodontic alignment had been predominant in such conditions. There was significant deference in the treatment between palatally impacted canine and buccally impacted one. More palatally impacted canines were extracted than buccally impacted ones.


CONCLUSIONS
There was significant difference in the treatment of maxillary canine impaction. More buccally impacted canines were found in Chinese patients, especially in female patients.
Zhong
Yan-lei
YL
Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Zeng
Xiang-long
XL
Jia
Qi-lin
QL
Zhang
Wan-lin
WL
Chen
Lin
L
D000293:Adolescent; D000328:Adult; D002648:Child; D003481:Cuspid / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla; D009971:Orthodontics, Corrective; D012737:Sex Factors; D014095:Tooth, Impacted / Q000453:epidemiology* / Q000628:therapy; D055815:Young Adult