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Method to determine the root canal spatial geometry using an algorithm of the e-Vol DX CBCT software.
Estrela, Carlos; Bueno, Mike Reis; Rossi-Fedele, Giampiero; Decurcio, Daniel Almeida; Guedes, Orlando Aguirre; Sousa-Neto, Manoel Damião; Estrela, Cyntia Rodrigues de Araújo.
Afiliação
  • Estrela C; Professor of Endodontics, School of Dentistry, Federal University of Goiás, Goiânia, Brazil.
  • Bueno MR; CROIF Diagnostic Imaging Center, Cuiabá, Brazil.
  • Rossi-Fedele G; Professor of Endodontics University of Adelaide, Dental School, Department of Endodontics, Adelaide, Australia.
  • Decurcio DA; Professor of Endodontics, School of Dentistry, Federal University of Goiás, Goiânia, Brazil.
  • Guedes OA; Professor of Oral Biology, School of Dentistry, Evangelical University of Goiás, GO, Brazil.
  • Sousa-Neto MD; Professor of Endodontics, School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil.
  • Estrela CRA; Professor of Oral Biology, School of Dentistry, Evangelical University of Goiás, GO, Brazil.
Braz Dent J ; 34(6): 40-49, 2023.
Article em En | MEDLINE | ID: mdl-38133091
ABSTRACT
This study evaluated a method to determine the spatial geometry of root canal preparation (RCP) using navigation dynamics and a specific algorithm from a new CBCT software (e-Vol DX). CBCT scans of 168 root canals of mandibular molars were acquired before and after RCP, using nickel-titanium (NiTi) instruments (ProTaper Next, BioRace, Reciproc Blue, and WaveOne Gold). The spatial geometry of the root canals and the operative risk of disproportional wear of dentinal walls after RCP were evaluated using a new CBCT software. A 3-point scoring system was used after the measuring of cementum/dentin thickness before and after RCP in all root thirds. The root thirds were distributed into three parts of similar sizes, and the scores were categorized at three levels 1. mild risk (1/3), 2. moderate risk (2/3), 3. severe risk (3/3). These levels were proposed according to the risk of creating disproportionate shapes, thin walls, or perforations. The data were analyzed statistically by Fischer's exact test (α = 5%). There were no significant differences in operative risk among the NiTi engine-driven systems, for the distal or mesial walls of all the root canal thirds (p>0.05). The spatial geometry method to assess operative risk allows clinical planning for a predictable enlargement of the root canal in all root thirds. Based on using a map-reading strategy on root canals in CBCT scans, NiTi engine-driven instruments did not present an increased operative risk during RCPs.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cavidade Pulpar / Tomografia Computadorizada de Feixe Cônico Espiral Idioma: En Revista: Braz Dent J Assunto da revista: ODONTOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cavidade Pulpar / Tomografia Computadorizada de Feixe Cônico Espiral Idioma: En Revista: Braz Dent J Assunto da revista: ODONTOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil