Marginal adaptation, fracture load and macroscopic failure mode of adhesively luted PMMA-based CAD/CAM inlays

被引:14
|
作者
Ender, Andreas [1 ]
Bienz, Stefan [1 ]
Moermann, Werner [1 ]
Mehl, Albert [1 ]
Attin, Thomas [1 ]
Stawarczyk, Bogna [2 ]
机构
[1] Univ Zurich, Ctr Dent Med, Clin Prevent Dent Periodontol & Cariol, Plattenstr 11, CH-8032 Zurich, Switzerland
[2] Munich Dent Sch, Dept Prosthodont, Goethestr 70, D-80336 Munich, Germany
关键词
Unfilled PMMA-based CAD/CAM inlays; Glass-ceramic CAD/CAM inlays; Marginal adaptation; Fracture load; Fracture types; ENDODONTICALLY-TREATED MOLARS; FIXED DENTAL PROSTHESES; SELF-ADHESIVE; CERAMIC INLAYS; IN-VITRO; COMPOSITE RESTORATIONS; FATIGUE RESISTANCE; BEARING CAPACITY; FINITE-ELEMENT; RESIN CEMENTS;
D O I
10.1016/j.dental.2015.11.009
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objectives. To evaluate marginal adaptation, fracture load and failure types of CAD/CAM polymeric inlays. Methods. Standardized prepared human molars (48) were divided into four groups (n=12): (A) PCG (positive control group); adhesively luted glass-ceramic inlays, (B) TRX; CAD/CAM polymeric inlays luted using a self-adhesive resin cement, (C) TAC; CAD/CAM polymeric inlays luted using a conventional resin cement, and (D) NCG (negative control group); direct-filled resin-based composite restorations. All specimens were subjected to a chewing simulator. Before and after chewing fatigue, marginal adaptation was assessed at two interfaces: (1) between dental hard tissues and luting cement and (2) between luting cement and restoration. Thereafter, the specimens were loaded and the fracture loads, as well as the failure types, were determined. The data were analysed using three- and one-way ANOVA with post hoc Scheffe test, two sample Student's t-test (p < 0.05). Results. Before and after chewing fatigue, marginal adaptation for interface 1 showed significantly better results for TRX and PCG than for TAC (p = 0.001-0.02) and NCG (p = 0.001-0.047). For interface 2, marginal adaptation for TAC was significantly inferior to TRX (p < 0.001) and PCG (p <0.001). Chewing fatigue had a negative impact on the marginal adaptation of TAC and NCG. No significant differences in fracture load were found between all tested groups. Significance. Self-adhesive luted polymeric CAD/CAM inlays showed similar marginal adaptation and fracture load values compared to adhesively luted glass-ceramic inlays. (C) 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:E22 / E29
页数:8
相关论文
共 4 条
  • [1] Effect of material and fabrication technique on marginal fit and fracture resistance of adhesively luted inlays made of CAD/CAM ceramics and hybrid materials
    Sener-Yamaner, Isil Damla
    Sertgoz, Atilla
    Toz-Akalin, Tugba
    Ozcan, Mutlu
    JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, 2017, 31 (01) : 55 - 70
  • [3] Impact of Various Cavity-Preparation Designs on Fracture Resistance and Failure Mode of CAD/CAM Fabricated Ceramic Inlays and Onlays
    Elkaffas, Ali Atef
    Alshehri, Abdullah Mohammed
    Alqahtani, Ali Robaian
    Albaijan, Refal Saad
    Soliman, Tarek Ahmed
    APPLIED SCIENCES-BASEL, 2024, 14 (09):
  • [4] Influence of the Crystallization Firing Process on Marginal and Internal Adaptation of Silicate-based Glass-ceramic Inlays Fabricated With a CAD/CAM Chairside System
    Kobayashi, M.
    Niizuma, Y.
    Sugai, R.
    Manabe, A.
    OPERATIVE DENTISTRY, 2023, 48 (06) : 657 - 665