Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic
Background: Repair bonding to lithium disilicate ceramic (LDS) remains an issue. This study examined whether the adaptation of a resin composite to LDS can be improved by a silane pretreatment and warm air-drying. Methods: LDS blocks (IPS e.max CAD) with prefabricated tapered cavities were bonded us...
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| Format: | Article |
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MDPI AG
2021-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/2/86 |
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| author | Pa Pa Kay Khine Antonin Tichy Ahmed Abdou Keiichi Hosaka Yasunori Sumi Junji Tagami Masatoshi Nakajima |
| author_facet | Pa Pa Kay Khine Antonin Tichy Ahmed Abdou Keiichi Hosaka Yasunori Sumi Junji Tagami Masatoshi Nakajima |
| author_sort | Pa Pa Kay Khine |
| collection | DOAJ |
| description | Background: Repair bonding to lithium disilicate ceramic (LDS) remains an issue. This study examined whether the adaptation of a resin composite to LDS can be improved by a silane pretreatment and warm air-drying. Methods: LDS blocks (IPS e.max CAD) with prefabricated tapered cavities were bonded using a silane-containing universal adhesive (Clearfil Universal Bond Quick ER; UBQ) or the bonding agent of a two-step self-etch adhesive (Clearfil SE Bond 2), with and without a silane pretreatment (Clearfil Ceramic Primer; CP). CP and the adhesives were air-dried with normal air (23 ± 1 °C) or warm air (60 ± 5 °C), light-cured, and the cavities were filled with a flowable composite. Interfacial gap formation was evaluated using swept-source optical coherence tomography immediately after filling, after 24 h, 5000 and 10,000 thermal cycles, and an additional 1 year of water storage. Results: Without the silane pretreatment, all specimens soon detached from the cavities. Warm air-drying significantly decreased gap formation compared to normal air-dried groups (p < 0.001) and improved long-term stability (p < 0.001). The lowest gap formation was observed with UBQ when the silane pretreatment was combined with warm air-drying. Conclusions: Composite adaptation to LDS was insufficient without silanization, but it was stable in the long term if the silane pretreatment and warm air-drying were combined. |
| first_indexed | 2024-03-09T04:05:55Z |
| format | Article |
| id | doaj.art-c4cae72ffaa4439ba0bad0ba2efd8512 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T04:05:55Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-c4cae72ffaa4439ba0bad0ba2efd85122023-12-03T14:07:27ZengMDPI AGCrystals2073-43522021-01-011128610.3390/cryst11020086Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate CeramicPa Pa Kay Khine0Antonin Tichy1Ahmed Abdou2Keiichi Hosaka3Yasunori Sumi4Junji Tagami5Masatoshi Nakajima6Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, JapanDepartment of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, JapanDepartment of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, JapanDepartment of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, JapanCenter of Advanced Medicine for Dental and Oral Disease, National Center for Geriatrics and Gerontology, Department for Advanced Dental Research, Obu, Aichi 474-8511, JapanDepartment of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, JapanDepartment of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, JapanBackground: Repair bonding to lithium disilicate ceramic (LDS) remains an issue. This study examined whether the adaptation of a resin composite to LDS can be improved by a silane pretreatment and warm air-drying. Methods: LDS blocks (IPS e.max CAD) with prefabricated tapered cavities were bonded using a silane-containing universal adhesive (Clearfil Universal Bond Quick ER; UBQ) or the bonding agent of a two-step self-etch adhesive (Clearfil SE Bond 2), with and without a silane pretreatment (Clearfil Ceramic Primer; CP). CP and the adhesives were air-dried with normal air (23 ± 1 °C) or warm air (60 ± 5 °C), light-cured, and the cavities were filled with a flowable composite. Interfacial gap formation was evaluated using swept-source optical coherence tomography immediately after filling, after 24 h, 5000 and 10,000 thermal cycles, and an additional 1 year of water storage. Results: Without the silane pretreatment, all specimens soon detached from the cavities. Warm air-drying significantly decreased gap formation compared to normal air-dried groups (p < 0.001) and improved long-term stability (p < 0.001). The lowest gap formation was observed with UBQ when the silane pretreatment was combined with warm air-drying. Conclusions: Composite adaptation to LDS was insufficient without silanization, but it was stable in the long term if the silane pretreatment and warm air-drying were combined.https://www.mdpi.com/2073-4352/11/2/86ceramicrepairdurabilitysilaneoptical coherence tomographygap formation |
| spellingShingle | Pa Pa Kay Khine Antonin Tichy Ahmed Abdou Keiichi Hosaka Yasunori Sumi Junji Tagami Masatoshi Nakajima Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic Crystals ceramic repair durability silane optical coherence tomography gap formation |
| title | Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic |
| title_full | Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic |
| title_fullStr | Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic |
| title_full_unstemmed | Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic |
| title_short | Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic |
| title_sort | influence of silane pretreatment and warm air drying on long term composite adaptation to lithium disilicate ceramic |
| topic | ceramic repair durability silane optical coherence tomography gap formation |
| url | https://www.mdpi.com/2073-4352/11/2/86 |
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