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Hydroxyapatite Affects the Physicochemical Properties of Contemporary One-Step Self-Etch Adhesives

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Title: Hydroxyapatite Affects the Physicochemical Properties of Contemporary One-Step Self-Etch Adhesives
Authors: Motoyama, Yutaro Browse this author
Yamauti, Monica Browse this author
Nakajima, Masatoshi Browse this author →KAKEN DB
Ikeda, Masaomi Browse this author →KAKEN DB
Tagami, Junji Browse this author →KAKEN DB
Shimada, Yasushi Browse this author →KAKEN DB
Hosaka, Keiichi Browse this author →KAKEN DB
Keywords: one-step self-etch adhesive system
water sorption
flexural strength
modulus of elasticity
Issue Date: 21-Nov-2022
Publisher: MDPI
Journal Title: Materials
Volume: 15
Issue: 22
Start Page: 8255
Publisher DOI: 10.3390/ma15228255
PMID: 36431740
Abstract: The study aimed to evaluate the influence of the manipulation surfaces on the physical properties of one-step self-etch adhesives (1-SEAs). Scotchbond Universal (SBU), Clearfil Universal Bond Quick ER (UBQ), and an experimental adhesive (UBQ(exp)) were manipulated on different surfaces: manufacturer's Teflon-based dispensing dish (TD) or hydroxyapatite plate (HA). After manipulation of the adhesives, the pH of each 1-SEA was measured. Samples of each adhesive/manipulation surface were prepared and subjected to water sorption (WS)/solubility (SL) and flexural strength tests. The modulus of elasticity (E) was measured in dry and wet conditions before and after 24 h water storage, and the percentage of variation of E (Delta E) was calculated. Results were analyzed using the t-test with Bonferroni corrections (alpha = 0.05). When adhesives were manipulated on the HA plate, there was a significant increase in the adhesives' pH. WS and SL of all 1-SEAs decreased when the HA was used. Only SBU showed higher flexural strength when manipulated on the HA compared to the manipulation on TD under dry and wet conditions. For each 1-SEA, the use of HA resulted in significantly higher E in dry and wet conditions. Delta E of all adhesives was smaller with the manipulation on HA than on TD. It was concluded that the manipulation of 1-SEA on a hydroxyapatite plate considerably affected the adhesives' properties.
Type: article
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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