Authors:Hemant Kumar Halwai, Vanita Gautam, Manju Pandey Pages: 7 - 9 Abstract: Objective: To determine the distribution of different skeletal pattern in orthodontic patients visiting a tertiary center in midwestern Nepal.Materials & Method: A sample of 200 lateral cephalograms of Nepali patients visiting UCMS-College of Dental Surgery, Bhairahawa was obtained. The jaw base relationship was assessed from lateral cephalograms using angular measurement (ANB angle). Among the total sample size; 74 (37%) were males and 126 (63%) were female. Age was divided into 3 groups: 8-11 years, 12-17 years, and 18-36 years. Pearson Chi square test was done to test the association between age group and distribution of skeletal jaw base relationship. All data were recorded and analyzed with SPSS software.Result: The distribution of skeletal malocclusion according to ANB angle classification revealed that the most prevalent skeletal malocclusion was Class II skeletal jaw base relationship accounting up to 97(48.5%), followed by Class I 87(43.5%) and Class III 16(8%). The study showed statistically significant difference between gender and distribution of skeletal jaw base relationship (p<0.05). However, there was no significant difference between the age groups and distribution of skeletal jaw base relationship (p<0.05).Conclusion: Most common skeletal jaw base relationship in patients seeking orthodontic patients was Class II followed by Class I and Class III in a tertiary center of mid-western Nepal. PubDate: 2017-05-30 DOI: 10.3126/ojn.v6i2.17412 Issue No:Vol. 6, No. 2 (2017)
Abstract: Introduction: Appropriate comparison of an individual’s craniofacial structure can be made when evaluated relative to his/her comparable peer group. However, McNamara’s Caucasian norms are being used for adult Brahmins cephalometric analysis.Objective: To determine cephalometric norms using McNamara’s analysis in adult Brahmins of Kathmandu and to compare the values within the group and with Caucasians. Materials & Method: Screening of 850 individuals aged 18-27 years was performed. Inclusion criteria were Angle’s Class I molar and canine relation with normal overjet and overbite, symmetric face with acceptable profile, without craniofacial abnormalities, orthodontic/surgical treatment in the past and without proximal caries or prosthesis. Lateral digital cephalometric radiographs of 41 selected adult Brahmins of Kathmandu (23 males and 18 females) were manually traced. Comparative test was conducted within adult Brahmins of Kathmandu and with Caucasian group at significance level p≤0.05.Result: Adult male Brahmins of Kathmandu were found to have larger craniofacial measurements: Effective Mandibular Length (p≤0.001), Maxillo-mandibular Differential (p≤0.05) and Lower Anterior Facial Height (p≤0.01) than adult female Brahmins of Kathmandu. Adult Brahmins were found to have smaller craniofacial measurements compared to Caucasians.Conclusion: Gender and ethnic diversity must be considered during orthodontic diagnosis and treatment planning for an individual.
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