Does the bonding effectiveness of a fiber post/resin composite benefit from mechanical or chemical treatment? Seven methods for saliva-contaminated surfaces
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- Imai Dai
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Mine Atsushi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Ezaki Ryoma
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Nakatani Hayaki
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Matsumoto Mariko
- Department of Restorative Dentistry, Hokkaido University Graduate School of Dental Medicine, Hokkaido, Japn BIOMAT & University Hospitals Leuven, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven, Belgium
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- Hagino Ryosuke
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Yumitate Masahiro
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Yamanaka Azusa
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Ban Shintaro
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Miura Jiro
- Division for Interdisciplinary Dentistry, Osaka University Dental Hospital, Osaka, Japan
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- Meerbeek Bart Van
- BIOMAT & University Hospitals Leuven, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven, Belgium
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- Higashi Mami
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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- Yatani Hirofumi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
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<p>Purpose: This study examined four cleaning methods and three chemical treatments for artificial saliva-contaminated fiber posts in terms of bonding durability to resin composite core materials.</p><p>Methods: Non-contaminated fiber posts (Tokuyama FR Post, Tokuyama Dental) and those contaminated (GC Fiber Post, GC) with artificial saliva (Saliveht Aerosol, Teijin Pharma) were used. Washing and drying (WD), alcohol cleaning (AlC), H3PO4 etching (P/WD), alumina blasting (B/D) for decontamination and silanization (Clearfil Ceramic Primer Plus, Kuraray Noritake Dental, Si), resin priming (HC Primer, Shofu, MMA), and bonding resin application (Clearfil Universal Bond Quick, Kuraray Noritake Dental, BR) for chemical treatment were performed. The treated fiber post was planted inside a cylindrical tube and filled with resin composite (DC Core Automix ONE, Kuraray Noritake Dental). The specimen was sectioned, and a push-out test was performed after 24 h, 1 month, and 3 months. The fracture surface was observed using a scanning electron microscope (SEM).</p><p>Results: Adhesion between the non-contaminated fiber post and resin composite did not improve by silanization and decreased by alumina blasting. SEM observations revealed a fractured glass fiber by alumina blasting. Saliva contamination decreased the bond strength between the fiber post and resin composite; however, recovery was achieved by WD, Alc, P/WD, and B/D. Compared to Si, BR (P = 0.009) was effective in restraining the long-term durability of bonding, whereas MMA (P = 0.99) was not.</p><p>Conclusion: The application of bonding resin after alcohol cleaning is the most convenient and effective clinical procedure for fiber post surface treatment.</p>
収録刊行物
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- Journal of Prosthodontic Research
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Journal of Prosthodontic Research 66 (2), 288-295, 2022
公益社団法人 日本補綴歯科学会
