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Year : 2015  |  Volume : 3  |  Issue : 2  |  Page : 124-128

Evaluation of vertical mandibular asymmetry in unilateral and bilateral posterior crossbite adult patients

1 Private Practice, Dubai, United Arab Emirates
2 Department of Orthodontics, College of Dentistry, Ajman University of Science and Technology, Ajman, United Arab Emirates, United Arab Emirates

Correspondence Address:
Amjad Al Taki
Private Practice, P.O. Box 10462, Dubai, United Arab Emirates
United Arab Emirates
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-3825.149067

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Objective : t0 he aim of this study was to estimate possible differences in skeletal asymmetry between group of adult subjects with normal occlusion and unilateral and bilateral posterior crossbite malocclusions. Materials and Methods: A sample of 91 subjects (consisted of 37 unilateral posterior crossbite [14 male and 23 female; mean age 22.49 ± 4.19 years] and 31 bilateral posterior crossbite patients [18 male and 13 female; mean age 24.36 ± 3.76 years] and a control group (CG) of 23 subjects with normal occlusion [13 male and 10 female; mean age 22.74 ± 1.74 years]) was examined in the study. Condylar, ramal, and condylar-plus-ramal asymmetry values were measured for all subjects on panoramic radiographs. Data were analyzed statistically by means of paired t-test. Results: Unilateral crossbite group (UCG) and bilateral cossbite group (BCG) showed significant asymmetric indices (condylar, ramal, and condylar-plus-ramal) relative to the CG, except for condylar index when comparing BCG and CG (P > 0.05). Comparisons within the crossbite groups showed no statistically significant differences in condylar, ramal, or condylar-plus-ramal heights (RHs) between left and right sides of the UCG, while for the BCG, significant difference was found only for the condylar-plus-RH (P < 0.05). Conclusions : b0 oth UCG and BCG have asymmetrical condyles compared to CG. Side comparisons within crossbite groups showed asymmetric mandible in BCG.

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