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J Investig Clin Dent. 2014 Feb;5(1):38-44. doi: 10.1111/jicd.12027. Epub 2013 Jan 25.

Prevalence and characteristics of impacted maxillary canines in Southern Chinese children and adolescents.

Author information

1
Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.

Abstract

AIM:

The incidence of impacted maxillary canines in Caucasians reportedly ranges from 1% to 3%. The objectives of this study were to estimate the prevalence and determine the characteristics of impacted maxillary canines in southern Chinese children and adolescents.

METHODS:

This retrospective audit involved 533 subjects with impacted maxillary canines that had been treated between February 1982 and February 2009. A customized data entry form was prepared to record and evaluate the status of impacted canines.

RESULTS:

The 533 subjects (327 females and 206 males) with impacted maxillary canines, who were identified from the population of 26 039 subjects, represented a prevalence of 2.1%. Four hundred and forty-two (82.9%) of these subjects had unilaterally impacted canines, while 91 (17.1%) of them had bilateral impactions. In 442 subjects with unilateral canine impactions, 220 (49.8%) were buccally placed, 194 (43.9%) were palatally placed, and 28 (6.3%) of the canines were found to lie within the arch.

CONCLUSIONS:

The overall prevalence of impacted maxillary canines in this study of 2.1% was similar to the figures quoted for Caucasian populations. In subjects with unilateral impactions, buccally impacted canines demonstrated a slightly higher incidence (49.8%) compared to palatally impacted canines (43.9%).

KEYWORDS:

ectopic tooth; impacted canine; maxillary canine; prevalence

PMID:
23355390
DOI:
10.1111/jicd.12027
[Indexed for MEDLINE]

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