Abstract
Objective: To determine the antero-posterior skeletal jaw relationship, in 12 -15 year old Nigerian school children in Benin city.Materials and Methods: Lateral cephalometric radiographs of 100 subjects aged 12-15 years with no history of orthodontic treatment were taken for this study. The radiographs were manually traced and analysed to generate values for SNA, SNB and ANB.Result: The mean age of the population studied was 12.16years. There were 40 males (40%) and 60 females (60%). No significant difference was noted in the mean value for males and females (p<0.05). The mean SNA was 88.780 ± 3.990, SNB 85.26 0 ± 3.820, ANB 3.470 ± 2.310 .The ANB values ranged from 1.50 to 4.750.Conclusion: No significant difference was noted in the values for males and females. The skeletal pattern is defined by the ANB value.Keywords: Antero- posterior, Skeletal Jaw relationship.
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