Avaliação do desgaste promovido pela broca post preparation utilizando imagens de TCCB

• Ano de defesa: 2015
• Autor(a) principal: Marquezan, Flavia Kolling
• 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: Cavidade pulpar; Dente pré-molar; Endodontia; Pinos dentários; Tomografia computadorizada de feixe cônico; Bicuspid; Cone-beam computed tomography; Dental pins; Endodontics; Root canal; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: http://repositorio.ufsm.br/handle/1/6172

The aim of this in vitro study was to evaluate the residual dentin thickness of palatal root of premolars after post space preparation with the new Brazilian drill Post Preparation and compare with the Gates-Glidden and Largo drills using cone-beam computed tomography (CBCT). A total of 21 premolars were selected and randomized into 3 groups: G1 - Post Preparation burs; G2 - Gates-Glidden burs #2 and #3; G3 - Largo burs #1 and #2. The residual dentin thickness in seven sections for the mesial, distal, buccal and palatal points was measured in three stages: initial (unprepared), after instrumentation to #35 apical file and after post preparation using the equipment Kodak CS 9000C 3D Extraoral Imaging System and CS 3D Imaging v. 3.4.3. software. The area of the root canal was analyzed in three stages through VRMesh Reverse v. 7.6.1. software. Statistical significance was set at 5%. Data from linear measurements and the area were analyzed using the Kruskal-Wallis test. The Post Preparation burs demonstrated similar performance to the Gates-Glidden and Largo drills in the analysis of residual dentin thickness for post space preparation.