Root resorption risk modeling

Conference Paper presented in XXI Jornadas de Classificação e Análise de Dados (JOCLAD2014), Lisbon, Portugal. We proposed to study nine clinical and treatment-related factors and polymorphisms of four genes in order to construct a model to predict orthodontic-induced external apical root resorption (EARR). We concluded that the main factors contributing to the EARR process are gender, treatment duration, use of a Hyrax appliance, premolar extractions and rs1718119 polymorphism of the P2RX7 gene. These five variables explained 27% of EARR variability, suggesting the existence of other aetiologic factors.Cite as: Pereira, S., Lavado, N., Nogueira, L. Lopez, M. Abreu, J., Silva, H. (2014) Root resorption risk modeling. Em: Sousa, F., Marques, C., Silva, I., Dias, J., Lavado, N., Marcelo, C. (eds.) XXI Jornadas de Classificação e Análise de Dados (JOCLAD2014). Livro de Resumos. Lisboa: Instituto Nacional de Estatística. ISBN 978-989-98955. pp. 237-240