article · International Journal of Dentistry
This research evaluates the craniofacial skeletal profiles of adult Tanzanians with normal dental occlusion using lateral skull cephalograms. Researchers assessed 142 men and 167 women aged 18 to 30 years who had Class I occlusion and no prior orthodontic interventions. By examining six linear and 14 angular measurements, the study compared different ethnic groups within Tanzania as well as Tanzanian norms against Caucasian reference standards. Findings show minor ethnic variations within Tanzania, including an increased ANB and NA-APog angle in the Cushite group and a reduced Md1-ML angle in the Bantu group. Overall, Tanzanian adults differed significantly from Caucasians in almost all measurements, displaying more convex facial profiles, greater lower lip protrusion, and notable dental proclination.
Orthodontic treatment standards and diagnostic tools frequently rely on Caucasian anatomical norms. By establishing specific craniofacial benchmarks for Tanzanian adults, this work highlights the need for ethnically appropriate reference data. This supports dental practitioners in tailoring diagnoses, treatment planning, and surgical interventions to the anatomical features of the local population.
This research provides baseline reference data that can be incorporated into orthodontic diagnostic software, imaging suites, and clinical treatment guidelines for African populations. The primary users would be orthodontists, dental software developers, and maxillofacial surgeons. The findings represent early-stage clinical reference data that requires integration into dental diagnostic tools or regional healthcare protocols before direct commercial application.
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Objective: The aim of this study is to investigate the craniofacial skeletal profile features of the Tanzanian population with normal occlusion using lateral skull cephalograms, to determine the differences in craniofacial characteristics among various Tanzanian ethnic groups, and to compare the cephalometric norms of Caucasians with those of Tanzanians. Materials and Methods: Lateral cephalograms were taken from 142 male and 167 female Tanzanians, aged 18–30 years, all with acceptable and pleasing profiles and Class I occlusion, and no history of previous orthodontic treatments. Six linear and 14 angular cephalometric measurements were selected for analysis. A Student t ‐test was used to compare the mean cephalometric values between Tanzanians and Caucasians, while a one‐way analysis of variance was applied to assess the inter‐ethnic differences within the Tanzanian group. Results: No significant differences were found between the Tanzanian ethnic groups, except for the ANB and NA‐APog angles, which were increased in the Cushite group, and the Md1‐ML angle, which was found to be reduced in the Bantu sample. Significant differences were observed between Tanzanians and Caucasians in all measurements ( p < 0.05) except for the Wits appraisal in sagittal relationships and the S‐Go:N‐Me and SN‐OcP measurements in vertical relationships. Conclusion: The findings indicate that Tanzanian adults display distinct craniofacial characteristics, including a more convex facial profile, increased lower lip protrusion, dental proclination, and notable ethnic and intergroup variations.
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DOI: 10.1155/ijod/6685596
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