Influência da anodontia parcial de terceiro molar na redução do comprimento radicular dos incisivos superiores e inferiores

• Ano de defesa: 2011
• Autor(a) principal: Sousa, Lana Peixoto Telles de
• Orientador(a): Martins-ortiz, Maria Fernanda
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: IASCJ - Universidade Sagrado Coração
• Programa de Pós-Graduação: Biologia Oral
• Departamento: Ciências da Saúde e Biológicas
• País: BR
• Palavras-chave em Português: ANODONTIA PARCIAL; TERCEIRO MOLAR; REDUÇÃO DO COMPRIMENTO RADICULAR; INCISIVOS SUPERIORES E INFERIORES
• Palavras-chave em Inglês: PARTIAL AGENESIS; THIRD MOLAR; REDUCTION IN ROOT LENGTH; UPPER AND LOWER INCISORS
• Área do conhecimento CNPq: CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: http://localhost:8080/tede/handle/tede/129

The complete absence of formation of one or more teeth characterizes the group of dental agenesis, which can be divided into two groups: anodontia and hypodontia or partial anodontia. The partial agenesis of third molars is a relatively common dental anomaly that often causes orthodontic problems. Early diagnosis is important for research of other changes possibly associated, but also to enable better treatment planning. This study aims to evaluate whether there was association between partial agenesis of third molar and the length of upper and lower incisors. Nineteen patients aged from 12 years and complete permanent dentition were selected to the experimental group. The patients in the experimental group were selected through their panoramic radiographs, which showed partial agenesis of third molar. For this group, patients with agenesis other than of third molars, patients with impacted canines and other disorders of tooth development were excluded. For the control group were selected 19 patients who had complete permanent dentition, however, unlike those in the experimental group, these presented with all third molars. Patients in the experimental group and control group patients were not treated orthodontically. Both groups were matched by age. Then measurements are made using periapical radiographs early, with the program Image J, of the length of the upper and lower incisors from the same patients so that they could investigate whether there was any connexion between the decrease of upper and lower incisors. Considering the dental morphology directly influence the distribution of orthodontic forces and determining an increased risk of dental resorption, this study aimed to resolve whether the presence of partial agenesis of third molar generate implications for the size of the roots which may influence the increase of the risk of root resorption of incisors, much required during orthodontic movement. Thus, the orthodontist can take due care during the treatment plan and execution, preventing future unwanted root resorption.