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Three-dimensional evaluation of alveolar changes induced by nasoalveolar molding in infants with unilateral cleft lip and palate: A case-control study

Korean Journal of Orthodontics 2019년 49권 5호 p.286 ~ 298
 ( Burgaz Merve Altay ) - Private practice

 ( Cakan Derya Germec ) - Yeditepe University Faculty of Dentistry Department of Orthodontics
 ( Yilmaz Burcu Nur ) - Yeditepe University Faculty of Dentistry Department of Orthodontics

Abstract


Objective: The objectives of this study were to evaluate linear and volumetric alveolar changes induced by nasoalveolar molding (NAM) in infants with complete unilateral cleft lip and palate (UCLP) and compare the maxillary dimensions after NAM with the normal dimensions in infants without clefts.

Methods: A total of 26 infants with UCLP treated by NAM (mean age before and after NAM: 14.20 ± 8.09 days and 118.16 ± 10.06 days, respectively) comprised the treatment group, while 26 infants without clefts (mean age: 115.81 ± 8.71 days) comprised the control group. Changes in the maxillary dimensions following NAM were measured on three-dimensional models using Mimics software, version 17.0.

Results: During NAM, there was a decrease in the cleft widths, maxillary arch depths, and rotation of the greater segment. While the anterior alveolar arch width exhibited a significant decrease, the posterior arch width was mostly maintained. There were no changes in the anterior vertical deviations of the alveolar segments. The alveolar crest lengths, arch circumference, and bilateral posterior volumetric measures exhibited an increase. After NAM, the anterior arch width was comparable between the treatment and control groups, whereas the posterior arch width and anterior vertical deviations were greater in the treatment group than in the control group. The maxillary arch depths, alveolar crest lengths, and maxillary volumes were smaller in the NAM group than in the control group.

Conclusions: During NAM in infants with UCLP, the cleft width and anteroposterior and transverse alveolar dimensions exhibited a decrease while the vertical dimensions were maintained. Compared with infants without clefts, those with UCLP treated by NAM exhibited sagittal and vertical alveolar growth deficiencies and tissue insufficiency.

키워드

Unilateral cleft lip and palate; Nasoalveolar molding; Three-dimensional analysis; Alveolar changes
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