Effect of reapplication on pull-out bond strength of fibre post to root dentin: An in vitro study

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Saudi Dental Journal Pub Date : 2024-04-01 DOI:10.1016/j.sdentj.2024.01.011

Nuray İskefli , Elif Yeğin , Güzide Pelin Sezgin , Sema Sönmez Kaplan , Tuna Kaplan

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引用次数: 0

Abstract

Purpose

Post removal may be necessary for many reasons and is inevitable after the re-application of a dental post. The present study investigated the bond strength between root dentin and a re-applied fibre-reinforced composite (FRC) post by a pull-out test.

Materials and methods

After root canal treatments of 30 extracted human maxillary canine teeth, post spaces were prepared (10 mm), and FRC posts (Hi-Rem Post; Overfibres, İmola, Italy) were luted with self-adhesive resin cement. The samples were than randomly divided into test and control groups (n = 15 in each). The FRC posts were removed in the test group, and new posts were cemented. The pull-out test (1 mm/minute speed) was used to measure the bond strength. Failure types were determined using a stereomicroscope. Mann-Whitney U, chi-square and Fisher-Freeman-Halton exact tests were used for statistical analysis.

Results

The bond strength values of the test (119.5 ± 36.86 N) and control (115.55 ± 55.44 N) groups did not differ significantly (p >.05). In terms of the percentage of failure types, there was a significant difference only in the test group between the mixed failure type and the other failure types (p <.05).

Conclusions

The re-application of FRC post did not seem to affect the bond strength. The distribution of failure types was similar between the control and test groups.

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重新涂敷对纤维桩与牙根的拔出粘接强度的影响：体外研究

目的由于多种原因，拔除牙柱是必要的，而且在重新使用牙柱后拔除牙柱也是不可避免的。本研究通过拉出试验研究了牙根牙本质与重新粘贴的纤维增强复合材料（FRC）牙桩之间的粘结强度。材料和方法对 30 颗拔出的人类上颌犬齿进行根管治疗后，制备牙桩间隙（10 毫米），并用自粘性树脂粘结剂粘结 FRC 牙桩（Hi-Rem 牙桩；Overfibres, İmola, Italy）。然后将样本随机分为试验组和对照组（每组 15 人）。试验组移除 FRC 骨柱，并粘接新的骨柱。使用拉出试验（1 毫米/分钟的速度）测量粘接强度。使用体视显微镜确定破坏类型。结果试验组（119.5 ± 36.86 N）和对照组（115.55 ± 55.44 N）的粘接强度值没有显著差异（p >.05）。就失效类型的百分比而言，只有试验组的混合失效类型与其他失效类型之间存在显著差异（p <.05）。对照组和试验组的失效类型分布相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Saudi Dental Journal DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

22 weeks

期刊介绍： Saudi Dental Journal is an English language, peer-reviewed scholarly publication in the area of dentistry. Saudi Dental Journal publishes original research and reviews on, but not limited to: • dental disease • clinical trials • dental equipment • new and experimental techniques • epidemiology and oral health • restorative dentistry • periodontology • endodontology • prosthodontics • paediatric dentistry • orthodontics and dental education Saudi Dental Journal is the official publication of the Saudi Dental Society and is published by King Saud University in collaboration with Elsevier and is edited by an international group of eminent researchers.