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Congenital missing permanent teeth in Korean unilateral cleft lip and alveolus and unilateral cleft lip and palate patients.

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Authors
Baek, Seung-Hak; Kim, Na-Young
Issue Date
2007-01
Publisher
Angle Orthodontist / E.H Angle Education and Research Foundation
Citation
Angle Orthod. 2007;77(1):88-93
Keywords
Congenital missingMaxillary lateral incisorMaxillary second premolar
Abstract
Objective: To investigate the differences in the congenital missing teeth pattern in terms of tooth
type (permanent maxillary lateral incisor [MLI] and maxillary second premolar [MSP]) and sidedness
(cleft vs noncleft) between boys and girls in Korean unilateral cleft lip and alveolus (UCLA)
and unilateral cleft lip and palate (UCLP) patients.
Materials and Methods: This study used the charts, models, radiographs, and intraoral photographs
of 90 UCLA patients and 204 UCLP patients (ages 6 to 13 years). Binomial test, chisquare
test, Fisher exact test, maximum likelihood analysis of variance, and the odds ratio were
performed.
Results: According to the relationship between the congenital missing teeth pattern and the cleft
type, the UCLP patients had 2.98 times more missing MLIs and 1.80 times more missing MSPs
than did the UCLA patients. The MLI was congenitally missing more in boys than in girls, but the
MSP showed the opposite tendency. Boys had a higher frequency of congenital missing MLIs
and MSPs on the cleft side than did girls. However, on the noncleft side and both sides, girls had
a higher frequency of congenital missing MLIs and MSPs than did boys. Results showed a genderdominant
pattern of congenital missing MLIs and MSPs.
Conclusion: These results suggest that gender and cleft type might affect the congenital missing
teeth pattern in terms of tooth type and sidedness.
ISSN
0003-3219
Language
English
URI
http://hdl.handle.net/10371/66617
DOI
https://doi.org/10.2319/113005-419
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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