Effect of Repressing Lithium Disilicate Glass Ceramics on The Shear Bond Strength of Resin Cements

Author:

Abu Haimed Tariq S.1,Alzahrani Saeed J.1ORCID,Attar Esraa A.2ORCID,AL-Turki Lulwa E.2ORCID

Affiliation:

1. Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia

2. Department of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah 22254, Saudi Arabia

Abstract

The aim of this study was to investigate the effect of repeated pressing of lithium disilicate ceramic on the shear bond strength (SBS) of three types of resin cement. Methodology: A lithium disilicate ceramic (IPS e.max® Press) was first heat-pressed to form rectangular disk specimens. Then, leftovers were used for the second and third presses. A total of 90 specimens were prepared and separated, according to the number of pressing cycles, into three groups: 1st, 2nd, and 3rd presses (n = 30). Each group was further subdivided into three groups (n = 10) according to the type of resin cement used, as follows: Multilink N (MN), Variolink Esthetic DC (VDC), and Variolink Esthetic LC (VLC). All the cement was bonded to the ceramic surface, which was etched with hydrofluoric acid and primed with Monobond Plus. All samples were light-cured and stored for 24 h. Shear bond strength was tested on a universal testing machine. Results: A two-way ANOVA was used to evaluate the influence of repeated pressing cycles and cement type as well as their interaction. The results indicated that cement type has a significant impact (p < 0.001) but not the number of pressing cycles (p = 0.970) or their interaction (p = 0.836). The Bonferroni post-hoc test showed that the SBS of MN was significantly higher than that of VDC and VLC in the first press and second press cycles, respectively. The SBS of MN was significantly higher than that of VDC and VLC cements in the third pressing cycle. There was no significant difference in the SBS between VLC and VDC in all three pressing cycles. Conclusion: The results of the current study did not report a detrimental effect of repeated pressing up to three cycles on the shear bond strength of the IPS e.max® Press. Multilink resin cement showed the highest SBS to IPS e.max® Press at the third pressing cycle. For all types of cement and heat pressing cycles, the majority of cement failures were adhesive. No cohesive failures occurred in any of the tested resin cements, regardless of the cement type or the number of heat pressing cycles tested.

Publisher

MDPI AG

Subject

General Materials Science

Reference39 articles.

1. Ivoclar Vivadent, Inc. IPS e.max (2022, November 10). Available online: https://www.thaidentalcenter.com/img/treatments/veneers/EmaxMaterialScience.pdf.

2. Flexural resistance of heat-pressed and CAD-CAM lithium disilicate with different translucencies;Carrabba;Dent. Mater.,2017

3. The effects of repeated heat-pressing on the mechanical properties and microstructure of IPS e.max Press;Tang;J. Mech. Behav. Biomed. Mater.,2014

4. The influence of ceramic re-pressing on surface properties, bond strength, and color stability of leucite ceramic;Bottino;J. Adhes. Dent.,2018

5. AbuHaimed, T.S., Alzahrani, S.J., Farsi, S.A., Al-Turki, L.E., and Hajjaj, M.S. (2022). The effect of repeated pressing on the flexural strength, color stability, vickers hardness, and surface topography of heat-pressed lithium disilicate. Materials, 15.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3