表面处理和树脂水门汀类型对聚醚醚酮与二硅酸锂陶瓷粘结强度的影响。

Effect of surface treatment and resin cement type on the bond strength of polyetheretherketone to lithium disilicate ceramic.

机构信息

Lecturer at Fixed Prosthodontics Department, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.

Faculty of Dentistry, Ain Shams University, Cairo, Egypt.

出版信息

BMC Oral Health. 2024 May 2;24(1):513. doi: 10.1186/s12903-024-04269-8.

DOI:10.1186/s12903-024-04269-8

PMID:38698366

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11064278/

Abstract

BACKGROUND

This study aims to evaluate the effect of surface treatment and resin cement on the shear bond strength (SBS) and mode of failure of polyetheretherketone (PEEK) to lithium disilicate ceramic (LDC). This is suggested to study alternative veneering of PEEK frameworks with a ceramic material.

METHODS

eighty discs were prepared from PEEK blank and from lithium disilicate ceramic. Samples were divided into four groups according to surface treatment: Group (A) air abraded with 110 μm AlO, Group (AP) air abrasion and primer application, Group (S) 98% sulfuric acid etching for 60 s, Group (SP) Sulfuric acid and primer. Each group was subdivided into two subgroups based on resin cement type used for bonding LDC:1) subgroup (L) self- adhesive resin cement and 2) subgroup (B) conventional resin cement (n = 10). Thermocycling was done for all samples. The bond strength was assessed using the shear bond strength test (SBS). Failure mode analysis was done at 50X magnification with a stereomicroscope. Samples were chosen from each group for scanning electron microscope (SEM). The three-way nested ANOVA followed by Tukey's post hoc test were used for statistical analysis of results. Comparisons of effects were done utilizing one way ANOVA and (p < 0.05).

RESULTS

The highest mean of shear bond strength values was demonstrated in Group of air abrasion with primer application using conventional resin cement (APB) (12.21 ± 2.14 MPa). Sulfuric acid groups showed lower shear bond strength values and the majority failed in thermocycling especially when no primer was applied. The failure mode analysis showed that the predominant failure type was adhesive failure between cement and PEEK, while the remaining was mixed failure between cement and PEEK.

CONCLUSION

The air abrasion followed by primer application and conventional resin cement used for bonding Lithium Disilicate to PEEK achieved the best bond strength. Primer application did not have an effect when self-adhesive resin cement was used in air-abraded groups. Priming step is mandatory whenever sulfuric acid etching surface treatment is utilized for PEEK.

摘要

背景

本研究旨在评估表面处理和树脂水门汀对聚醚醚酮（PEEK）与锂硅二酸盐陶瓷（LDC）之间的剪切结合强度（SBS）和失效模式的影响。这是为了研究用陶瓷材料替代 PEEK 框架的覆盖层。

方法

从 PEEK 坯料和锂硅二酸盐陶瓷中制备了 80 个圆盘。根据表面处理将样品分为四组：组（A）用 110μm AlO 喷砂，组（AP）喷砂和涂底漆，组（S）用 98%硫酸蚀刻 60s，组（SP）硫酸和底漆。每组根据用于粘结 LDC 的树脂水门汀类型进一步分为两个亚组：1）亚组（L）自粘树脂水门汀和 2）亚组（B）常规树脂水门汀（n=10）。对所有样品进行热循环。使用剪切结合强度测试（SBS）评估结合强度。在 50X 放大倍数的立体显微镜下进行失效模式分析。从每组中选择样品进行扫描电子显微镜（SEM）检查。使用三因素嵌套方差分析（ANOVA），随后进行 Tukey 事后检验对结果进行统计分析。使用单向方差分析（ANOVA）和（p<0.05）比较效果。

结果

用常规树脂水门汀粘结时，具有涂底漆的喷砂组（APB）表现出最高的平均剪切结合强度值（12.21±2.14 MPa）。硫酸组显示出较低的剪切结合强度值，并且在热循环中尤其是在没有涂底漆时大多数失效。失效模式分析表明，主要失效类型是水泥与 PEEK 之间的粘结失效，其余为水泥与 PEEK 之间的混合失效。