{"title":"Influence of bonding agents on metal-ceramic bond strengths for Co-Cr alloy.","authors":"Tomofumi Sawada, Kenta Yamanaka, Akihiko Chiba, Shinji Takemoto","doi":"10.4012/dmj.2024-300","DOIUrl":null,"url":null,"abstract":"<p><p>This study investigated the influence of bonding agents on metal-ceramic bond strengths before porcelain veneering for cobalt-chromium alloy. Three ceramic systems: Initial MC (IMC), Hera Ceram (HC), and ZEO CE LIGHT (ZCL) were tested on wrought substructures. The ZCL system was also tested on cast substructures. Three-point bending test was performed, and fractured surfaces were analyzed using electron-probe microanalysis and X-ray diffraction. The bond strengths of all specimens exceeded the requirements of ISO 9693:2019 (>25 MPa). The ZCL bonding agent significantly improved bond strengths for wrought and cast substructures whereas the IMC and HC bonding agents did not. Wrought-ZCL specimens exhibited significantly higher bond strengths than cast-ZCL specimens. In the specimens exhibiting higher bond strength, silicon and titanium, which originated from the bonding agent, were predominantly detected at the debonded metallic surfaces. Consequently, the bonding agent positively affected the bond strength but depended on the ceramic system and substructure type.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dental materials journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.4012/dmj.2024-300","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
This study investigated the influence of bonding agents on metal-ceramic bond strengths before porcelain veneering for cobalt-chromium alloy. Three ceramic systems: Initial MC (IMC), Hera Ceram (HC), and ZEO CE LIGHT (ZCL) were tested on wrought substructures. The ZCL system was also tested on cast substructures. Three-point bending test was performed, and fractured surfaces were analyzed using electron-probe microanalysis and X-ray diffraction. The bond strengths of all specimens exceeded the requirements of ISO 9693:2019 (>25 MPa). The ZCL bonding agent significantly improved bond strengths for wrought and cast substructures whereas the IMC and HC bonding agents did not. Wrought-ZCL specimens exhibited significantly higher bond strengths than cast-ZCL specimens. In the specimens exhibiting higher bond strength, silicon and titanium, which originated from the bonding agent, were predominantly detected at the debonded metallic surfaces. Consequently, the bonding agent positively affected the bond strength but depended on the ceramic system and substructure type.
期刊介绍：
Dental Materials Journal is a peer review journal published by the Japanese Society for Dental Materials and Devises aiming to introduce the progress of the basic and applied sciences in dental materials and biomaterials. The dental materials-related clinical science and instrumental technologies are also within the scope of this journal. The materials dealt include synthetic polymers, ceramics, metals and tissue-derived biomaterials. Forefront dental materials and biomaterials used in developing filed, such as tissue engineering, bioengineering and artificial intelligence, are positively considered for the review as well. Recent acceptance rate of the submitted manuscript in the journal is around 30%.
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