The influence of pH on the adhesive performance of phosphoric ester monomers with zirconia.

IF 4.6 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Dental Materials Pub Date : 2025-02-24 DOI:10.1016/j.dental.2025.02.004

Aifang Han, Noriko Hiraishi, James Tsoi, Jukka P Matinlinna, Junji Tagami, Fumiaki Hayashi

{"title":"The influence of pH on the adhesive performance of phosphoric ester monomers with zirconia.","authors":"Aifang Han, Noriko Hiraishi, James Tsoi, Jukka P Matinlinna, Junji Tagami, Fumiaki Hayashi","doi":"10.1016/j.dental.2025.02.004","DOIUrl":null,"url":null,"abstract":"Objective: Functional phosphoric ester monomers containing primers have been widely used in dental adhesives. This study aims to analyze the atomic-level interaction between zirconia and phosphoric ester monomers under different pH conditions (acidic or neutral).Methods: Solid-state 31P NMR spectroscopy was employed to investigate the binding interactions between two types of phosphoric ester monomers-glycerophosphate-dimethacrylate (GPDM) and 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-with zirconia under varying pH conditions. Contact angles were measured on the zirconia surfaces with and without the application of phosphoric ester monomers. Additionally, tensile bond strength (TBS) tests were conducted to determine the effects of different phosphoric ester monomer-containing primers under different pH conditions on zirconia.Results: Solid-state 31P NMR spectroscopy revealed that both GPDM and MDP exhibited broadened peaks, positioned differently from their unreacted forms, indicating that the environment surrounding the phosphate groups in both GPDM and MDP changed upon adhesion to zirconia at the atomic level. Acidic MDP may form covalent bonds with zirconia through additional esterification on the zirconia surface. MDP-primed zirconia demonstrated a higher contact angle than GPDM-primed zirconia. The highest TBS was observed in the group of MDP reacted with zirconia under acidic conditions.Significance: These findings suggest that phosphoric ester monomers, particularly MDP in acidic conditions, can chemically bind to zirconia, contributing to enhanced adhesion behavior.","PeriodicalId":298,"journal":{"name":"Dental Materials","volume":" ","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dental Materials","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.dental.2025.02.004","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Objective: Functional phosphoric ester monomers containing primers have been widely used in dental adhesives. This study aims to analyze the atomic-level interaction between zirconia and phosphoric ester monomers under different pH conditions (acidic or neutral).

Methods: Solid-state ³¹P NMR spectroscopy was employed to investigate the binding interactions between two types of phosphoric ester monomers-glycerophosphate-dimethacrylate (GPDM) and 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-with zirconia under varying pH conditions. Contact angles were measured on the zirconia surfaces with and without the application of phosphoric ester monomers. Additionally, tensile bond strength (TBS) tests were conducted to determine the effects of different phosphoric ester monomer-containing primers under different pH conditions on zirconia.

Results: Solid-state ³¹P NMR spectroscopy revealed that both GPDM and MDP exhibited broadened peaks, positioned differently from their unreacted forms, indicating that the environment surrounding the phosphate groups in both GPDM and MDP changed upon adhesion to zirconia at the atomic level. Acidic MDP may form covalent bonds with zirconia through additional esterification on the zirconia surface. MDP-primed zirconia demonstrated a higher contact angle than GPDM-primed zirconia. The highest TBS was observed in the group of MDP reacted with zirconia under acidic conditions.

Significance: These findings suggest that phosphoric ester monomers, particularly MDP in acidic conditions, can chemically bind to zirconia, contributing to enhanced adhesion behavior.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Dental Materials 工程技术-材料科学：生物材料

CiteScore

9.80

自引率

10.00%

发文量

290

审稿时长

67 days

期刊介绍： Dental Materials publishes original research, review articles, and short communications. Academy of Dental Materials members click here to register for free access to Dental Materials online. The principal aim of Dental Materials is to promote rapid communication of scientific information between academia, industry, and the dental practitioner. Original Manuscripts on clinical and laboratory research of basic and applied character which focus on the properties or performance of dental materials or the reaction of host tissues to materials are given priority publication. Other acceptable topics include application technology in clinical dentistry and dental laboratory technology. Comprehensive reviews and editorial commentaries on pertinent subjects will be considered.