Association between severity of hypodontia and cephalometric skeletal patterns: a retrospective study
| Autor: | Dirk Bister, Waleed Taju, Sophia Shah, Martyn Sherriff |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male 0301 basic medicine Adolescent Cephalometry Radiography Black People Dentistry Orthodontics Mandible Severity of Illness Index White People 03 medical and health sciences 0302 clinical medicine Statistical significance Radiography Panoramic Severity of illness Maxilla medicine Humans Anodontia Retrospective Studies Analysis of Variance business.industry Vertical Dimension Retrospective cohort study 030206 dentistry medicine.disease Arabs stomatognathic diseases Hypodontia 030104 developmental biology medicine.anatomical_structure Face Female Nasion Analysis of variance business |
| Zdroj: | European Journal of Orthodontics. 40:200-205 |
| ISSN: | 1460-2210 0141-5387 |
| DOI: | 10.1093/ejo/cjx049 |
| Popis: | Objective To assess if severity of hypodontia is related to a specific skeletal pattern. Study design Lateral cephalometric radiographs and dental panoramic tomographs of 182 hypodontia patients were analysed. The severity of hypodontia was recorded and the sample was divided into groups with mild (n = 71), moderate (n = 56) and severe (n = 55) hypodontia. According to ethnicity, the sample was further subdivided into White Caucasians, African-British, and Arabian/Indian subgroups. Cephalometric measurements were used to quantify the skeletal discrepancy and vertical facial dimensions. Mean and standard deviation for each group were obtained for comparison and an analysis of variance (ANOVA) was carried out to assess the level of significance between the means of the readings in different severity groups. Results In the white Caucasian group, increased severity of hypodontia, was related to a retrusive maxilla with concomitant reduction of A point, Nasion, B point (ANB), reduced mandibular plane angle and anterior lower facial height (P value: 0.0935-0.9371). For the Black-British and Arabian/Indian groups' findings were inconsistent, with no specific pattern as the number of missing teeth increased. Conclusion The white Caucasian group followed a pattern that has previously been reported in other studies. For Black-British and Arabian/Indian groups' findings were inconsistent and no specific pattern emerged for different degrees of hypodontia. |
| Databáze: | OpenAIRE |
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