Influence of the thickening agent contained in a phosphoric acid etchant on bonding between feldspar porcelain and resin cement with a silane coupling agent

Phosphoric acid (PA) etchants are widely used for the bonding pretreatment of teeth; however, their influences on the bonding between glass-ceramics and resin cement have not been clarified yet. This study investigated the effect of a thickening agent on the bonding strength between feldspar porcela...

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Bibliographic Details
Published inDental Materials Journal Vol. 42; no. 3; pp. 327 - 335
Main Authors KOMAGATA, Yuya, IKEDA, Hiroshi, YANO, Haruka TAKASUE, NAGAMATSU, Yuki, MASAKI, Chihiro, HOSOKAWA, Ryuji, SHIMIZU, Hiroshi
Format Journal Article
LanguageEnglish
Published Japan The Japanese Society for Dental Materials and Devices 25.05.2023
Japan Science and Technology Agency
Subjects
Aqueous solutions
Bonding agents
Bonding strength
Coupling agents
Dental cement
Dental restorative materials
Durability
Etchants
Fourier transforms
Glass ceramics
Infrared spectroscopy
Phosphoric acid
Polyethylene glycol
Porcelain
Resin cement
Resins
Scanning electron microscopy
Shear bond strength
Silane coupling agent
Silanes
Strength testing
Thickening agent
Thickening agents
Resin cement
Phosphoric acid
Thickening agent
Silane coupling agent
Shear bond strength
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Summary:Phosphoric acid (PA) etchants are widely used for the bonding pretreatment of teeth; however, their influences on the bonding between glass-ceramics and resin cement have not been clarified yet. This study investigated the effect of a thickening agent on the bonding strength between feldspar porcelain treated with a PA etchant and resin cement with a silane coupling agent. The experiments were performed using two PA etchants: commercial one and prepared one consisting a PA aqueous solution and poly(ethylene glycol) thickening agent. The samples were evaluated by shear bond strength testing, scanning electron microscopy, and Fourier-transform infrared spectroscopy. The obtained results revealed that the thickening agent adhered to the porcelain surface and inhibited cement bonding. Meanwhile, PA remained on the surface due to the presence of the thickening agent and activated the silane coupling agent. Overall, the PA etchant did not improve the bond durability.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0287-4547
1881-1361
DOI:10.4012/dmj.2022-176