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Revista Estomatológica Herediana
Print version ISSN 1019-4355
Abstract
VIDALON, Marcia and HUERTAS, Gustavo. Evaluation of compressive strength in premolars with endodontically treated, restored with metal post and fiberglass post with different levels of ferrule. Rev. Estomatol. Herediana [online]. 2021, vol.31, n.4, pp.264-271. Epub Oct 05, 2021. ISSN 1019-4355. http://dx.doi.org/10.20453/reh.v31i4.4094.
Objective:
To compare the compressive strength in premolars with root canal treatment, restored with metal post and customized fiberglass post, at different levels of ferrule.
Material and Methods:
It was made up of 48 uniradicular premolars extracted by orthodontic treatment, with similar characteristics, randomly divided into 6 groups of 8 specimens each group: Group 1: Metal post with no ferrule, Group 2: Metal post with 1mm ferrule, Group 3: Metal post with 2mm ferrule, Group 4: Customized fiberglass post with no ferrule, Group 5: Customized fiberglass post with ferrule 1 mm, Group 6: Customized fiberglass post with a 2 mm ferrule. The analysis was compared using ANOVA test and Tukey’s multiple comparisons with a significance level of 0.05.
Results:
Significant differences were found in the compressive strength of premolars restored with metal post and customized fiberglass post at the different levels of ferrule. The group with ferrule of 2 mm restored with a metal post, obtained an average value of 885.74 (± 104.10) and with a customized fiberglass post, an average value of 962.19 (± 104.10), being the highest value found in these comparisons; (p = 0.005).
Conclusions:
The level of ferrule in metal post and customized fiberglass post, contributes to compressive strength, 2 mm ferrule restored with metal post and customized fiberglass post; presented higher values of compressive strength unlike those of 0 mm and 1 mm.
Keywords : Elastic modulus; tooth nonvital; endodontics; compressive strength.