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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of alternative sonochemical treatment on zirconia surface and bond strength with veneering ceramic

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Author(s):
Bastos, Natalia Almeida [1] ; Lisboa-Filho, Paulo Noronha [2] ; Tabata, Americo [3] ; Silveira Francisconi, Paulo Afonso [1] ; Furuse, Adilson Yoshio [1] ; Honorio, Heitor Marques [4] ; Sanches Borges, Ana Flavia [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Bauru Sch Dent, Dept Operat Dent Endodont & Dent Mat, Bauru, SP - Brazil
[2] Sao Paulo State Univ, Sch Sci, Bauru, SP - Brazil
[3] Sao Paulo State Univ, Sch Sci, Dept Phys, Bauru, SP - Brazil
[4] Univ Sao Paulo, Bauru Sch Dent, Dept Pediat Dent Orthodont & Publ Hlth, Bauru, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS; v. 252, FEB 2020.
Web of Science Citations: 0
Abstract

The morphological characterization of sonochemical treatment on bond strength of Y-TZP/veneer ceramic was evaluated. The surface topography and roughness were analyzed by Confocal Laser Scanning Microscopy, Atomic Force Microscopy and Scanning Electron Microscopy. The phase transformation was identified through Micro-Raman Spectroscopy. The specimens were subjected to the Shear Bond Strength (SBS) test. Failure modes were classified and examined by Fractographic analysis. No differences were observed between the groups regarding surface roughness. The C (control) and AOX (sandblasting) groups presented the highest median SBS values, which were significantly different from S40 (sonication with 40% nominal power) which showed the lowest median SBS value. All specimens exhibited phase transformation. Most specimens exhibited mixed failures. Although the alternative sonochemical treatment did not lead to sufficient bond strength at Y-TZP/veneer ceramic, it caused less damage to the ceramic surface than sandblasting. Therefore, only liner use seemed to be better than adding the sonochemical treatment. (AU)

FAPESP's process: 11/18061-0 - Structural and mechanical analysis and copings of experimental zirconia for use CAD/CAM system
Grantee:Ana Flávia Sanches Borges
Support Opportunities: Regular Research Grants