Avaliação do desgaste dentinário, na zona de risco da raiz mesial de primeiros molares inferiores, através da tomografia computadorizada Cone Beam

• Ano de defesa: 2011
• Autor(a) principal: Flores, Cláudia Bohrer
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; BR; Odontologia; UFSM; Programa de Pós-Graduação em Ciências Odontológicas
• Palavras-chave em Português: Preparo cervical; Zona de risco; Brocas acionadas a motor; Tomografia computadorizada Cone Beam; Primeiros molares inferiores; Cervical preparation; Risk zone; Computed tomography; First mandibular molars; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: http://repositorio.ufsm.br/handle/1/6079

The cervical preparation is essential to achieve the proper cleaning and shap-ing the root canal. In mandibular molars, this procedure must be performed carefully, since the concavity present in the furcation area reduces the thickness of dentin. The actual study ex vivo evaluation the effects of instruments on cervical preparation by cone beam computed tomography. A total of 40 canals from mandibular molars were divided into 4 groups: Group I Gates-Glidden #2 e #3; Group II Largo #1 e #2; Group III LA-Axxess 20/.06, 35/.06 and Group IV CPdrill®. The dentin thickness of the distal cervical wall of mesial canals was measured before and after the cervical preparation by software I-CATvision®. The result of the remain dentin thickness, were subjected to statistical analysis (one-way ANOVA), which showed no difference between the groups tested (p=0.684). This study, the drills used for cervical prepara-tion were considered safe and did not damage the dentin structure of the distal wall of mesial root canals of mandibular molars.