Apical maladaptation in retrograde obturation depending on the obturator material

Authors

  • Ana Grasiela Limoeiro Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos. Bauru, SP, Brazil. https://orcid.org/0000-0003-4633-720X
  • Guilherme Ferreira da Silva Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos. Bauru, SP, Brazil. https://orcid.org/0000-0002-3271-541X
  • Rodrigo Ricci Vivan Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos. Bauru, SP, Brazil. https://orcid.org/0000-0002-0419-5699
  • Murilo Prioro Alcalde Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos. Bauru, SP, Brazil. https://orcid.org/0000-0001-8735-065X
  • Marco Antônio Hungaro Duarte Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos. Bauru, SP, Brazil. https://orcid.org/0000-0003-3051-737X

DOI:

https://doi.org/10.4322/bds.2024.e4570

Abstract

Objective: This study aims to evaluate the apical disadaptation of retrofilling materials in retrograde obturation. Material and Methods: Forty-eight palatal roots of maxillary molars were instrumented using the step-back technique and filled using the single cone technique. After preparation and filling, the roots were embedded in resin, leaving 2 mm of the apex exposed. A 2 mm apicoectomy was performed on the root apices, and retro-preparation was carried out using a diamond-coated ultrasonic tip (S12 900D). The groups were then divided based on the retrograde filling material: MTA Group - retrograde filling with MTA; S26 Group - retrograde filling with Sealer 26. After completing the retrograde fillings, the roots were immersed in deionized water for 72 hours at 37°C to allow the materials to set. The root blocks were dried, sputter-coated, and analyzed under a scanning electron microscope to obtain images at 50x magnification. The photomicrographs of each root were digitized, and the total area of apical disadaptation was measured using the Image Tools software. Data were analyzed using the Mann Whitney test with a significance level of 5%. Results: There was no significant difference in disadaptation between the different types of materials. Conclusion: The type of obturation material did not affect apical disadaptation in retrograde fillings.

KEYWORDS

Apicoectomy; Endodontics; Retrograde obturation; Root Canal Filling Materials; Tooth apex.

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Published

2025-03-18

Issue

Vol. 27 No. 4 (2024): Oct - Dec / 2024 - Published Oct 2024

Section

Clinical or Laboratorial Research

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We hereby attest the study is original and does not present manipulated data, fraud or plagiarism. We made significant scientific contribution to the study and we are aware of the presented data and in agreement with the final version of the manuscript. We assume complete responsibility for the ethical aspects of the study.

 

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