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Evaluation of Minimally Invasive Preparation of Curved Mesial Canals of Mandibular Molars - An In Vitro Study.
Copelli, Felipe Andretta; Oda, Lisa Yurie; Rodrigues, Clarissa Teles; Batista, Antonio; Duarte, Marco Antonio Hungaro; Cavenago, Bruno Cavalini.
Afiliación
  • Copelli FA; Department of Restorative Dentistry, Postgraduate Program in Dentistry of Federal University of Paraná, Curitiba, Paraná, Brazil.
  • Oda LY; Department of Restorative Dentistry, Postgraduate Program in Dentistry of Federal University of Paraná, Curitiba, Paraná, Brazil. Electronic address: yu_oda@hotmail.com.
  • Rodrigues CT; Department of Restorative Dentistry, Federal University of Paraná, Curitiba, Paraná, Brazil.
  • Batista A; Department of Restorative Dentistry, Federal University of Paraná, Curitiba, Paraná, Brazil.
  • Duarte MAH; Department of Operative Dentistry, Endodontics and Dental Materials, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil.
  • Cavenago BC; Department of Restorative Dentistry, Postgraduate Program in Dentistry of Federal University of Paraná, Curitiba, Paraná, Brazil.
J Endod ; 50(9): 1321-1326, 2024 Sep.
Article en En | MEDLINE | ID: mdl-38901644
ABSTRACT

INTRODUCTION:

Curved mesial roots can be challenging for different stages of endodontic treatment. Preparation aims to enlarge, clean, and shape the root canal system, and hundreds of systems are available to carry it out. Aiming to maintain pericervical dentin, minimally invasive preparation was proposed, and with it, instruments with lower tapers emerged. This study aimed to evaluate the increase in canal volume, the centering ability of the instruments, and root canal transportation of two different rotary systems with lower tapers.

METHODS:

Eighteen curved mesial roots of extracted mandibular molars were scanned by micro-CT at 3 moments initial and after the 2 stages of endodontic preparation. The canals were prepared using TruNatomy (TN) and ProDesign Logic 2 (PDL2) instruments up to sizes 25.04 and 26.04, respectively, and after 36.03 and 35.05, respectively. The data were analyzed using parametric and nonparametric tests with a significance level of 5%.

RESULTS:

TN and PDL2 systems showed no difference regarding the increase in the volume of the canals with the first instruments, but after preparation with a diameter size of 35 or 36, there was a difference (P < .01) between the systems in the cervical and middle thirds.

CONCLUSION:

Both systems shaped the mesial canals of mandibular molars while keeping low transportation and good centering ability in enlargements up to diameter size 35 or 36 with tapers of 3 or 5%.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Preparación del Conducto Radicular / Cavidad Pulpar / Microtomografía por Rayos X / Mandíbula / Diente Molar Límite: Humans Idioma: En Revista: J Endod Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Preparación del Conducto Radicular / Cavidad Pulpar / Microtomografía por Rayos X / Mandíbula / Diente Molar Límite: Humans Idioma: En Revista: J Endod Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos