Effect of horizontal position of fiber post placement on fracture resistance and location in endodontically treated premolars with a MOD preparation

Abstract

Aim: To evaluate the effect of the position of fiber post placement on fracture resistance and location in endodontically treated teeth.

Methodology: Forty healthy double-rooted human first premolars were divided into five groups. S: healthy teeth without intervention; C: endodontic treatment with MOD cavity preparation; CR: restoration with composite resin; CMP: fiber post placed horizontally in the center of the middle third of the crown; CAP: fiber post placed horizontally 2 mm below the center of the middle third of the crown. After thermocycling and fracture strength tests using a universal test machine, pulp floor involvement was evaluated. The Tukey test was used for statistical analysis.

Results: Means and standard deviations of fracture strength (N) were as follow. S: 2451A±552.9; C: 32.63B±4.89; CR: 398.7C73.8; CRMFP: 1253D ±82.15; and CRAFP: 1156D±88.23 (different letters indicate statistical differences, P> 0.05). Posts placed 2 mm below the center of the middle third of the crown were associated with catastrophic fractures of the pulp chamber floor.

Conclusions: The position of a fiber post seems to affect fracture location. The use of fiber posts, regardless of position, increases fracture resistance of endodontically treated teeth.

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Author Biographies

Marla Kneib Ferri, Dentistry College, Federal University do Rio Grande do Sul, Porto Alegre, RS

Undergraduate Student

Simone Bonato Luisi, Endodontic Division, Department of Conservative Dentistry, Federal University do Rio Grande do Sul, Porto Alegre, RS

Associate Professor

Luiz Henrique Burnett Junior, Clinical Department, Post-Graduate Program, Dental School, Catholic University do Rio Grande do Sul, Porto Alegre, RS

DDS, MSc, PhD, Assistant Professor

Rafael Melara, Restorative Dentistry Division, Department of Conservative Dentistry, Federal University do Rio Grande do Sul, Porto Alegre, RS

DDS, MSc, PhD, Assistant Professor

Tiago André Fontoura de Melo, Endodontic Division, Department of Conservative Dentistry, Federal University do Rio Grande do Sul, Porto Alegre, RS

DDS, MSc, PhD, Assistant Professor

Published
2021-07-05
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Issue
Section
Original Articles
Keywords:
Endodontically treated teeth, fracture resistance, horizontal fiber post, position of the post
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How to Cite
Kneib Ferri, M., Bonato Luisi, S., Burnett Junior, L. H., Melara, R., & Fontoura de Melo, T. A. (2021). Effect of horizontal position of fiber post placement on fracture resistance and location in endodontically treated premolars with a MOD preparation. Giornale Italiano Di Endodonzia, 35(X). https://doi.org/10.32067/GIE.2021.35.01.28

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