Fracture resistance, two point bending strength and morphological characteristics of pulpless teeth restored with fiber-reinforced composite posts
Journal Title: RSBO - Year 2012, Vol 9, Issue 3
Abstract
Introduction: Fiber-reinforced composite posts (FRC posts) have been used for tooth reinforcement after endodontic treatment. The mechanical characteristics of FRC posts can influence the clinical prognostic. Objective: The aim of this study was to evaluate the flexural strength and fracture resistance of commercially available FRC posts Material and methods: Fourteen human single-rooted premolars with completely formed apices were selected and received endodontic treatment. The specimens were divided into two groups related to the post system: i) Group A – cylindrical-conical fiber-reinforced post (White post DC, FGM), and ii) group B – conical fiber-reinforced post (EXACTO, Angelus). The fracture resistance was evaluated and two point bending tests were carried out. The glass fiber characteristics and the tag penetration of the luting material into the radicular dentin structure were evaluated through scanning electronic microscopy in an illustrative way. One-way ANOVA and Tukey’s HSD test (α = 0.05) were applied. Results: The values obtained for fracture resistance and two point bending test were, respectively, 399.29 N and 109.5 N for group A, and 386.25 N and 119.5 N for group B. No significant differences in strength values among the groups were found. Conclusion: There were no significant statistical differences between the two post groups regarding to fracture strength and two point bending strength. It can be concluded that the posts selected for this study performed satisfactorily in terms of mechanical properties so that they can be used for tooth reinforcement after endodontic treatment.
Authors and Affiliations
Betsy Luiz, Fabiana Mattei, Karoliny Francisco, Marcelo Chain, Alfredo Pires
Keywords
Related Articles
- EP ID EP130496
- DOI -
- Views 170
- Downloads 0
Aesthetic improvements in free gingival graft due to its association with frenectomy
Introduction: The insufficient amount of attached gingiva and the abnormal insertion of the labial frenulum may be related. When this occurs, it is common to associate frenectomy techniques with free gingival graft...
Adhesive coronal seal of Syntac and Tetric flow following different dentine pretreatment protocols
Introduction: The purpose of this study was to test different sealer removal protocols following root canal filling before adhesive seal of access cavities. Material and methods: Forty single root teeth were selected for...
Histological evaluation of refinement influence in the cleaning efficacy of rotary nickel-titanium ProTaper® instruments in oval-shaped root canals
Introduction and objective: The aim of this in vitro study was to evaluate the cleaning and shaping efficacy of rotary nickel-titanium ProTaper® instrumentation in oval canals and the influence of ultrasonic irrig...
Impossibility of prosthetic rehabilitation leading to the removal of dental implant – case report
Introduction: Osseointegrated implants were introduced in the beginning of the 80s, allowing other alternatives in the prosthetic rehabilitation treatment. Many conventional prostheses’ problems were solved by osseointeg...
Gubernacular cord and canal – does these anatomical structures play a role in dental eruption?
Introduction: The gubernacular cord is an original structure of the dental lamina, which undergoes apoptosis and their remnants were organized in the form of epithelial islets and strands that lined up, leaving the...