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BIBTEX RIS

Evaluation of the push-out bond strength of an adjustable fiberglass post system to an endodontically treated oval root canal

2023; Japanese Society for Dental Materials and Devices; Volume: 42; Issue: 4 Linguagem: Inglês

10.4012/dmj.2022-248

ISSN

1881-1361

Autores

Guilherme Nilson Alves dos Santos, Yara Teresinha Corrêa Silva‐Sousa, A. Alonso, Aline Evangelista Souza‐Gabriel, Alice Corrêa Silva‐Sousa, Fabiane Carneiro Lopes‐Olhê, Renato Roperto, Jardel Francisco Mazzi‐Chaves, Manoel Damião Sousa‐Neto,

Tópico(s)

Dental Implant Techniques and Outcomes

Resumo

To evaluate the push-out bond strength of the adjustable fiberglass post system to dentin. Twenty maxillary canine roots were endodontically treated and divided into two groups (n=10): conventional fiberglass posts (CFPs) and with single adjustable post (SAP) system. Two slices of each third were subjected to the push-out and failure pattern test and the most apical slice was subjected to analysis of the adhesive interface by scanning electron microscopy (SEM). Data were analyzed by the three-way analysis of variance, Tukey, and Friedman tests, and linear regression (α=0.05). The results showed higher push-out bond strength in the initial time interval for SAP (10.3±5.3, p<0.01). After 6 months, there was reduction in push-out bond strength for both (p<0.001). A higher percentage of adhesive and cohesive failures to dentin. After 6 months areas of maladaptation were noted (p=0.000). The SAP is completed to the promissory root canal in relation to alternative CFP.

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