INTRODUCTION: This ex vivo study used cone beam computed tomography to evaluate the amount of dentin removal from the distal wall of the mesial canal of human mandibular first molars caused by 4 instruments used to flare the cervical third. METHODS: Thirty-two mesial roots were divided into 4 groups prepared by using ProTaper, K3, Gates-Glidden, or LA Axxess. The dentin thickness of the distal cervical wall of mesial canals was measured before and after the preparation by using computed tomography and Adobe Photoshop software. RESULTS: There was no statistically significant difference between the study groups (P > 05). CONCLUSIONS: All the instruments used for cervical preparation seemed to be safe and did not damage the dentin structure of the distal wall of mesial root canals of mandibular molars. Copyright (c) 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
INTRODUCTION: This ex vivo study used cone beam computed tomography to evaluate the amount of dentin removal from the distal wall of the mesial canal of human mandibular first molars caused by 4 instruments used to flare the cervical third. METHODS: Thirty-two mesial roots were divided into 4 groups prepared by using ProTaper, K3, Gates-Glidden, or LA Axxess. The dentin thickness of the distal cervical wall of mesial canals was measured before and after the preparation by using computed tomography and Adobe Photoshop software. RESULTS: There was no statistically significant difference between the study groups (P > 05). CONCLUSIONS: All the instruments used for cervical preparation seemed to be safe and did not damage the dentin structure of the distal wall of mesial root canals of mandibular molars. Copyright (c) 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
Authors: Caroline Marca; Paul M H Dummer; Susan Bryant; Fabiana Vieira Vier-Pelisser; Marcus Vinicius Reis Só; Vania Fontanella; Vinicius D'avila Dutra; José Antonio Poli de Figueiredo Journal: Clin Oral Investig Date: 2012-09-20 Impact factor: 3.573
Authors: Paula Barcellos da Silva; Simone Ferreti Duarte; Murilo Priori Alcalde; Marco Antonio Húngaro Duarte; Rodrigo Ricci Vivan; Ricardo Abreu da Rosa; Marcus Vinícius Reis Só; Angela Longo do Nascimento Journal: BMC Oral Health Date: 2020-04-16 Impact factor: 2.757