RESEARCH ARTICLE
A Comparative Study of Fracture Resistance of Endodontically Treated Compromised Teeth with Different Post Systems: An In Vitro Study
Mohammad Reza Malekipour1, Neda Hosseini2, Niloufar Jafari3, Ali Mazdak2, Peiman Mazaheri2, Farzaneh Shirani4, *
Article Information
Identifiers and Pagination:
Year: 2023Volume: 17
E-location ID: e187421062303140
Publisher ID: e187421062303140
DOI: 10.2174/18742106-v17-e230418-2022-121
Article History:
Received Date: 27/09/2022Revision Received Date: 22/02/2023
Acceptance Date: 27/02/2023
Electronic publication date: 27/04/2023
Collection year: 2023
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Aims:
This in-vitro study was conducted to compare structural reinforcement with composite resin and two different types of posts in structurally compromised teeth.
Methods and Materials:
Forty-eight human maxillary central incisors were instrumented and obturated. Specimens were randomly divided into four groups. The control group was not compromised and was just restored with a resin composite. In the composite-reinforced group, the access cavity of the compromised teeth was restored only with composite to the cemento-enamel junction (CEJ). In the reinforced glass fiber post group, the compromised cervical area of the teeth was reinforced with a dual-cured composite and a glass fiber post. The reinforced metal cast post group was reinforced with a dual-cured composite and a casting post. The mean fracture load was measured. Data were analyzed by SPSS software using one-way analysis of variance (ANOVA) and chi-square statistical analysis tests. For pair comparison, Duncan was used. P<0.05 was considered statistically significant.
Results:
The highest fracture resistance values were for the non-compromised samples (170.12 ± 12.44), while the lowest values were for the compromised ones restored only with the resin composite (71.40 ± 17.00). There was no statistically significant difference between the mean fracture resistances of the fiber (129.36 ± 21.34) and cast (116.60 ± 22.60) post groups (P>0.05).
Conclusion:
The use of a composite resin in a root with thin walls will reinforce the compromised tooth, but the type of the post will not influence the final results.
