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How Does Intentional Apical Foraminal Enlargement Affect the Foramen and Root Canal Morphology?
Schimdt, Tamer Ferreira; da Fonseca Roberti Garcia, Lucas; da Silveira Teixeira, Cleonice; Alcalde, Murilo Priori; Hungaro Duarte, Marco Antonio; Bortoluzzi, Eduardo Antunes.
Afiliação
  • Schimdt TF; Endodontics Division, Department of Dentistry, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • da Fonseca Roberti Garcia L; Endodontics Division, Department of Dentistry, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • da Silveira Teixeira C; Endodontics Division, Department of Dentistry, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • Alcalde MP; Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil.
  • Hungaro Duarte MA; Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil.
  • Bortoluzzi EA; Endodontics Division, Department of Diagnosis & Oral Health, University of Louisville, Louisville, Kentucky. Electronic address: eduardo.bortoluzzi@louisville.edu.
J Endod ; 50(5): 651-658, 2024 May.
Article em En | MEDLINE | ID: mdl-38387796
ABSTRACT

INTRODUCTION:

This study assessed the effect of intentional foraminal enlargement on the foramen and the apical root canal morphology.

METHOD:

Sixty mesial roots of mandibular molars were scanned by micro-computed tomography. Their apical foramina were photographed with a stereomicroscope before and after preparation. Three groups were formed (n = 20) according to the working length (WL). G-1 foramen - 1 mm; G0 foramen; and G+1 foramen + 1 mm. Each group originated 2 subgroups (n = 10) G-1 Buchanan's patency (size 10 K-type file) and foraminal debridement (sizes 20, 25 and 30 K-type files); G0 and G+1 rotary foraminal enlargement (ProDesign S size 25/.08) or reciprocating foraminal enlargement (R25). The area, perimeter, transportation, and noninstrumented walls of the foramen were evaluated. The root canal transportation and the centering index of preparation at 1, 3 and 5 mm from the foramen were also assessed. Data were compared statistically (α = 5%).

RESULTS:

The instruments used at the foramen and 1 mm beyond promoted foraminal enlargement and transportation. Regarding NIW, there was no difference between mechanized foraminal enlargements performed at the foramen or 1 mm beyond, similar to the manual foraminal debridement group (P > .05). There was no difference in transportation and centralization at 1-, 3-, and 5-mm apical levels, regardless of the instrumentation systems.

CONCLUSION:

Mechanical preparation at the foramen, or 1 mm beyond, resulted in foraminal enlargement, transportation and were not able to touch all root canal walls that delimit the foramen.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Preparo de Canal Radicular / Ápice Dentário / Cavidade Pulpar / Microtomografia por Raio-X / Dente Molar Limite: Humans Idioma: En Revista: J Endod Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Preparo de Canal Radicular / Ápice Dentário / Cavidade Pulpar / Microtomografia por Raio-X / Dente Molar Limite: Humans Idioma: En Revista: J Endod Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos