Shear bond strength of vat photopolymerization additive-manufactured zirconia to veneering ceramic.

IF 3.4 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry Pub Date : 2025-01-27 DOI:10.1111/jopr.14034

Yue Zhu, Zidi Zhai, Ting Jiao, Jian Sun

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引用次数: 0

Abstract

Purpose: To evaluate the shear bond strength (SBS) of stereolithography (SLA), digital light processing (DLP) manufactured, and computer numerical control (CNC) milled zirconia to veneering ceramic.

Materials and methods: Rectangular shaped zirconia substrates (10 × 5 × 5 mm³) were manufactured through SLA, DLP, and CNC technology separately. Their surface roughness was measured and the surface topography was analyzed by atomic force microscope (AFM). Then the veneering ceramic (5 × 5 × 5 mm³) was applied to carry out the SBS test. Failure modes were examined by a scanning electron microscope (SEM). The data of SBS and roughness were statistically analyzed with one-way ANOVA followed by S-N-K post hoc comparisons (a = 0.05).

Results: The surface roughness of the SLA group (0.38 ± 0.03 µm) and the DLP group (0.37 ± 0.04 µm) were both significantly higher than the CNC group (0.16 ± 0.00 µm) (p < 0.001). AFM results revealed irregular surface of SLA and DLP zirconia. No significant difference was found in SBS value of the three groups (p = 0.253). SEM image showed different failure modes including cohesive, adhesive, and mixed failure.

Conclusion: The bonding ability of SLA and DLP zirconia to veneering ceramic were comparable with that of CNC zirconia.

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来源期刊

Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

7.90

自引率

15.00%

发文量

171

审稿时长

6-12 weeks

期刊介绍： The Journal of Prosthodontics promotes the advanced study and practice of prosthodontics, implant, esthetic, and reconstructive dentistry. It is the official journal of the American College of Prosthodontists, the American Dental Association-recognized voice of the Specialty of Prosthodontics. The journal publishes evidence-based original scientific articles presenting information that is relevant and useful to prosthodontists. Additionally, it publishes reports of innovative techniques, new instructional methodologies, and instructive clinical reports with an interdisciplinary flair. The journal is particularly focused on promoting the study and use of cutting-edge technology and positioning prosthodontists as the early-adopters of new technology in the dental community.