Chemical etching of CAD-CAM glass-ceramic-based materials using fluoride solutions for bonding pretreatment.

Autor: Nishizawa Y; Division of Biomaterials, Department of Oral Functions, Kyushu Dental University.; Division of Orofacial Functions and Orthodontics, Department of Health Improvement, Kyushu Dental University., Komagata Y; Division of Biomaterials, Department of Oral Functions, Kyushu Dental University., Nagamatsu Y; Division of Biomaterials, Department of Oral Functions, Kyushu Dental University., Kawamoto T; Division of Orofacial Functions and Orthodontics, Department of Health Improvement, Kyushu Dental University., Ikeda H; Division of Biomaterials, Department of Oral Functions, Kyushu Dental University.
Jazyk: angličtina
Zdroj: Dental materials journal [Dent Mater J] 2024 Jul 31; Vol. 43 (4), pp. 504-516. Date of Electronic Publication: 2024 Jun 01.
DOI: 10.4012/dmj.2023-333
Abstrakt: The surface treatment of glass-ceramic-based materials, namely, lithium disilicate glass (IPS e.max CAD), feldspar porcelain (VITABLOCS Mark II), and a polymer-infiltrated ceramic network (VITA ENAMIC), using aqueous fluoride solutions and their influence on luting agent bonding were investigated. Six experimental aqueous fluoride solutions were applied to these materials, and their effects were assessed by surface topological analysis. The obtained results were compared using non-parametric statistical analyses. Ammonium hydrogen fluoride (AHF) etchant demonstrated the greatest etching effect. Subsequent experiments focused on evaluating different concentrations of the AHF etchant for the bonding pretreatment of glass-ceramic-based materials with a luting agent (PANAVIA V5). AHF, particularly at concentrations above 5 wt%, effectively roughened the surfaces of the materials and improved the bonding performance. Notably, AHF at a concentration of 30 wt% exhibited a more pronounced effect on both etching and bonding capabilities compared to hydrofluoric acid.
Databáze: MEDLINE