Interfacial fracture toughness of different surface treatments on zirconia-reinforced lithium silicate glass-ceramics.

Autor:	Tang T; Dental Biomaterials Science (International Programme), Faculty of Dentistry, Mahidol University.; School and Hospital of Stomatology, Kunming Medical University., Suputtamongkol K; Department of Prosthodontics, Faculty of Dentistry, Mahidol University., Harnirattisai C; Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University., Neoh SP; Department of Orthodontics, Faculty of Dentistry, Mahidol University., Pongprueksa P; Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University.
Jazyk:	angličtina
Zdroj:	Dental materials journal [Dent Mater J] 2023 Nov 29; Vol. 42 (6), pp. 835-843. Date of Electronic Publication: 2023 Oct 25.
DOI:	10.4012/dmj.2023-124
Abstrakt:	This study investigated the influence of different surface treatments on unfiring or firing zirconia-reinforced lithium silicate (ZLS) glass-ceramics. Celtra Duo and IPS e.max CAD blocks were cut and process following manufacturer protocols. The specimen surface was treated with seven different protocols. Two ceramic blocks with the same surface treatment were bonded with luting agent and prepared for mini-interfacial fracture toughness tests (mini-iFT). The specimens were tested after 1-week storage. The data was statistically analyzed using two-way ANOVA and Dunnett's T3 comparison (α=0.05). The highest mini-iFT of both Celtra Duo unfired and fired was shown in the HF+S group, which was not significantly different from HF+S+UA. For IPS e.max CAD, the mini-iFT was higher in the groups treated with hydrofluoric acid. Additional adhesive after silane application did not significantly improve bonding effectiveness. Therefore, surface treatment with hydrofluoric acid and silane is recommended for both unfiring and firing ZLS glass ceramics.
Databáze:	MEDLINE
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