Symmetric Evaluation of Mandible in Growing Patient with Unilateral Cleft Lip and Palate
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Abstract
Background: Asymmetrical maxillary growth in subjects with unilateral cleft lip and palate (UCLP) is previously well documented in the literature. Mandibular growth in subjects with unilateral cleft lip and palate (UCLP) is not directly affected by the cleft. However, the mandible occludes with maxilla, therefore mandibular asymmetry may exist in adult subjects with UCLP. No studies have mentioned mandibular asymmetry in growing subjects with UCLP.
Methods: Mandibular asymmetry index (condylar, ramal, and condylar plus ramal), gonial angle measurements and depth of the antigonial notch were examined on panoramic radiographs. The study groups comprised 26 UCLP patients (14 males and 12 females; mean age 8.85 ± 1.69 years) and a control group of 26 subjects (16 males and 10 females; mean age 8.89 ± 1.45 years). Mann-Whitney U-test was used to determine statistically significant differences between left and right side among group and between 2 groups for condylar, ramal, and condylar plus ramal asymmetry index, gonial angle, and depth of the antigonial notch measurements at the 95 percent confidence interval.
Results: None of the investigated groups showed statistically significant differences between left and right side (P>.05). Asymmetry indices were similar, with no statistically significant differences found in any of the groups. The UCLP patients have symmetrical mandibles when compared with a normal occlusion sample.
Conclusion: Normal and UCLP groups indicated a symmetrical mandible in growing patient.
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