Epidemiological survey on third molar agenesis and facial pattern among adolescents requiring orthodontic treatment
| Autor: | Gómez de Diego R, Ignacio de Nieves J, Javier Montero, Juan Carlos Prados-Frutos, Antonio López-Valverde, Nansi López-Valverde |
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| Rok vydání: | 2017 |
| Předmět: |
Orthodontics
Cephalometric analysis Molar medicine.medical_specialty business.industry Radiography Research Dentistry 030206 dentistry Odds ratio Logistic regression medicine.disease CIENCIAS MÉDICAS [UNESCO] 03 medical and health sciences stomatognathic diseases 0302 clinical medicine Agenesis Epidemiology UNESCO::CIENCIAS MÉDICAS medicine Facial pattern business General Dentistry 030217 neurology & neurosurgery |
| Zdroj: | Gómez de Diego, Rafael ; Montero Martín, Javier ; López Valverde, Nansi ; Nieves, José Ignacio de ; Prados Frutos, Juan Carlos ; López-Valverde Centeno, Antonio. Epidemiological survey on third molar agenesis and facial pattern among adolescents requiring orthodontic treatment. En: Journal of Clinical and Experimental Dentistry, 9 9 2017: 1088-1095 RODERIC. Repositorio Institucional de la Universitat de Valéncia instname Journal of Clinical and Experimental Dentistry |
| Popis: | Background The aim of this study was to determine the association between facial pattern according to Ricketts cephalometric analysis, and prevalence of third molar agenesis, taking subject age and gender as control variables. Material and methods An epidemiological survey was conducted based on a sample of 224 candidates for orthodontic treatment aged 12 to 24 (n=224). Third molar agenesis was recorded using Ricketts cephalometric analyses of lateral teleradiographs and panoramic radiographs. The risk for agenesis was predicted considering the 5 Vert Index parameters (facial axis, facial depth, mandibular plane angle, lower facial height and mandibular arch), facial type (brachyfacial, mesofacial, dolichofacial) and sociodemographic variables (age and sex), using odds ratio (OR) calculated by logistic regression. Results Third molar agenesis was observed in 25% of the sample. Risk for agenesis is significantly determined by sociodemographic factors (age, OR: 1.2), cephalic patterns (mesofacial vs dolichofacial, OR:4.3; and brachyfacial vs dolichofacial OR: 3.2) and cephalometric patterns (facial axis, OR: 0.8; lower facial height, OR: 0.8; and mandibular plane angle, OR:0.9). Conclusions Facial parameters (facial axis, lower facial height, and mandibular plane angle) proved to be strong predictors of the risk for third molar agenesis, the prevalence of agenesis being significantly lower in dolichofacial individuals. Key words:Facial Pattern, Ricketts Analysis, Third Molar Agenesis. |
| Databáze: | OpenAIRE |
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