Retrospective clinical and radiographic evaluation of restored endodontically treated teeth

Abstract

Objectives: The aim of this study was to perform a clinical and radiographic analysis of endodontically treated teeth (ETT) restored with cast metal posts (CMPs) or prefabricated glass fiber posts (GFPs) and crowns. Materials and Methods: Fifty ETT were restored with 25 CMPs and 25 GFPs at a private dental clinic between 2001 and 2016. The restorations consisted of 12 all-ceramic crowns, 31 metalceramic crowns, and 7 composite resin crowns. Demographic data, type of teeth, type of post-and-core system, time of placement, crown restorations, the number of proximal contacts, the type of antagonist, and reports of any complications after post-and-core placement were recorded for each patient. Assessments were performed at baseline (radiographic) and followup (radiographic and clinical). Data were analyzed by the McNemar test, the Pearson χ 2 test, and Kaplan-Meier survival curves (α = 0.05). The mean follow-up was 67.6 months. Results: No significant difference was observed for any of the radiographic parameters when the baseline and final radiographs were compared. In the clinical evaluation, anatomical form (p = 0.009) and occlusion (p = 0.001) showed significant differences according to the type of crown restoration; specifically, metal-ceramic and all-ceramic crowns outperformed composite resin crowns. Conclusions: CMPs and GFPs showed favorable results for restoring ETT after 6 years of follow-up. All-ceramic and metal-ceramic crowns showed higher survival rates and better clinical outcomes.

Effect of Luting Cement Film Thickness on the Pull-Out Bond Strength of Endodontic Post Systems

“…The lower bond strength values were recorded when small sized posts were used in oversized post spaces, as in space 1 (600 μm) and space 2 (350–400 μm) (size 4 and size 5 posts luted in post space prepared with size 6 Parapost drill). These findings are similar to previous studies, which showed that the debonding of posts occurs when cement film thickness is increased [ 12 , 14 ]. It was proposed from the studies that when the cement layer is thinner, there will be less micro-porosities and polymerization stress, leading to higher retentive bond strength [ 14 , 18 ].…”

“…Little information is available on the role of cement film thickness and its effect on the retention of posts [ 6 , 9 , 10 , 11 ]. Previous clinical retrospective studies have demonstrated that the debonding of posts occurs when luting cement film thickness is increased [ 12 , 13 , 14 ]. However, there is no consensus on the ideal thickness of the luting cement to improve the retentive bond strength of posts in endodontically treated teeth [ 15 ].…”

Pino De Fibra De Vidro: Revisão De Literatura

“…Em um estudo realizado por Garcia et al (2020) foi feita uma análise clínica e radiográfica de dentes tratados endodonticamente restaurados com núcleos de metal fundido ou pinos pré-fabricados de fibra de vidro. Para isso, 50 dentes foram restaurados, sendo com 25 núcleo metálico fundido e 25 com pinos de fibra de vidro em uma clínica odontológica privada entre 2001 e 2016.…”

“…De acordo com os estudos avaliados, observou-se que, em geral, os pinos de fibra de vidro apresentaram desempenho similar aos núcleos metálicos fundidos, sendo considerados uma alternativa viável e eficaz para a restauração de dentes tratados endodonticamente, especialmente em áreas anteriores, nas quais há maiores exigências estéticas (GIOVANI et al, 2009;FIGUEIREDO et al, 2015;MARCHIONATTI et al, 2017;CLOET et al, 2017;GARCIA et al, 2020;SARKIS-ONOFRE et al, 2020). Apesar de serem relacionados a procedimentos de maior custo, os pinos de fibra de vidro devem ser levados em consideração tendo em vista suas vantagens estéticas e o bom desempenho em longo prazo (SCHWENDICKE et al, 2020).…”