The effect of surface treatment and post-length on fiber post-bond strength
Background: Endodontically treated teeth with extensive loss structure may require a post. Fiber post is made of a resin polymer matrix held by epoxy resin, which has a high conversion rate and high cross-linking, which may not interact with the monomer of resin cement that can reduce the bond stren...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2023-01-01
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| Series: | Scientific Dental Journal |
| Subjects: | |
| Online Access: | http://www.scidentj.com/article.asp?issn=2580-6548;year=2023;volume=7;issue=2;spage=76;epage=82;aulast=Untono |
| Summary: | Background: Endodontically treated teeth with extensive loss structure may require a post. Fiber post is made of a resin polymer matrix held by epoxy resin, which has a high conversion rate and high cross-linking, which may not interact with the monomer of resin cement that can reduce the bond strength that may cause post-debonding, which is a common failure of fiber post. Post-surface treatment and post-length are factors that affect post-bond strength. Objective: This study aims to determine the effect of surface treatment on fiber post and post-length on the bond strength of fiber post. Materials and Methods: Thirty mandibular premolars were selected, decoronated 15 mm from the coronal to the apical region, and then subjected to root canal treatment, obturation, and post-preparation. The samples were initially divided into two groups; each was assigned to a specific post-length; then, each group was randomly divided into a negative control group, air abrasion group, and laser group, for a total of six groups (n = 5). Self-adhesive resin cement is used for post-cementation. Self-adhesive resin cement is used for post-cementation. The evaluation of fiber post-bond strength in this study was evaluated with the pull-out test using a universal testing machine at a speed of 0.5 mm/min. Data were analyzed by two-way ANOVA and Tukey’s test. Results: The air abrasion group showed a higher bond strength (P < 0.05) compared with the control and Er:Cr:YSGG laser groups. No significant difference in bond strength was observed between the control and Er:Cr:YSGG laser groups with both post-lengths. Moreover, post-length had no effect on bond strength, and no significant interaction was found between surface treatment and post-length. Conclusion: In this study, the bond strength was higher with surface treatment by air abrasion. Post-length had no impact on bond strength. |
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| ISSN: | 2580-6548 2541-321X |