Efficacy of CAD/CAM Glass Fiber Posts for the Restoration of Endodontically Treated Teeth

Abstract

Objective. The aim of this systematic review was to provide an overview of available scientific evidence regarding the comparative efficacy of computer-aided design (CAD) and computer-aided manufacturing (CAM) glass fiber posts with prefabricated and metal cast posts for the restoration of endodontically treated teeth (ETT). Methods. This systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Electronic and manual searches were performed using the PubMed, SciELO, Cochrane, ScienceDirect, Web of Science, and EBSCO databases. The reference lists of the selected papers were reviewed to identify relevant papers. There were no year restrictions, and eligible studies were those in English publications and describing in vitro studies evaluating intraradicular retainers (IRs) for (i) fracture resistance, (ii) bond strength, (iii) adaptation, and (iv) cement layer thickness. Literature reviews, systematic reviews, meta-analyses, case reports, in vitro studies with <8 specimens, and noncomparative trials involving prefabricated or metal cast posts were excluded. The authors of this review independently screened the search results, extracted data, and assessed the risk of bias. Results. No significant differences were found in fracture resistance between prefabricated and CAD/CAM glass fiber posts or between CAD/CAM glass fiber and metal cast posts, although the latter demonstrated higher fracture resistance than the prefabricated glass fiber posts. Restoration with a full crown was not necessary to increase the fracture resistance in the presence of the ferrule effect. CAD/CAM glass fiber and metal cast posts had higher bond strength, lower nanoleakage, and better adaptation to the root canal. Conclusions. Despite the heterogeneity of methodologies and results reported, the results of these studies indicated that the CAD/CAM glass fiber and metal cast posts showed greater efficacy in terms of fracture resistance, retention, and adaptation, compared to prefabricated glass fiber posts.

The effect of touch-cure polymerization on the push-out bond strength of fiber posts

“…This complex improves fracture resistance through the good distribution of stresses along the root canal. These outcomes are consistent with previous articles ( Gutiérrez et al, 2022 , Pamato et al, 2023 ).…”

Utilização de pino de fibra de vidro após tratamento endodôntico: revisão de literatura

“…Seu módulo de elasticidade é semelhante ao da dentina com elevados valores de adesão aos polímeros utilizados em odontologia. Além disso, eles apresentam uma estética favorável, são fáceis de serem removidos em caso de necessidade de retratamento do canal radicular, são resistentes à corrosão, proporcionam um preparo conservador, dispensa a fase laboratorial, economiza custos ao paciente e tempo clínico ao cirurgião-dentista (Calabro et al, 2019;Gutiérrez et al, 2022).…”

“…Eles apresentam uma coloração agradável esteticamente, não necessitam de etapas laboratoriais, possuem módulo de elasticidade, resistência à compressão, flexão e expansão térmica semelhantes ao da dentina, diminuindo as chances que ocorra eventuais trincas no esmalte e tecido radicular. Indo além, os pinos de fibra de vidro possuem uma união química com os tecidos dentários e permitem uma maior preservação do remanescente dentário (Calabro et al, 2019;Gutiérrez et al, 2022).…”

Facial Line Angles: A Key to Tooth-like Rehabilitation

“…So, she was clearly informed that lack of a ferrule tooth structure may affect the abutment's strength resistance to fracture [ 5 ]. Thus, the metallic post and core was the most suitable solution due to its better fracture resistance than prefabricated glass fiber posts [ 6 ]. Once the informed consent to the treatment was obtained, it was carefully placed ( Figure 5 ).…”