Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations
Glass-ceramic spray deposition (GCSD) is a novel technique for coating lithium disilicate (LD) glass-ceramics onto zirconia through simple tempering steps. GCSD has been proven to improve the bonding of zirconia to resin cement, but the effect of etching time on GCSD and the long-term durability of...
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MDPI AG
2022-10-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/21/12783 |
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| author | Chien-Ming Kang Dan-Jae Lin Sheng-Wei Feng Cheng-Yuan Hung Shogo Iwaguro Tzu-Yu Peng |
| author_facet | Chien-Ming Kang Dan-Jae Lin Sheng-Wei Feng Cheng-Yuan Hung Shogo Iwaguro Tzu-Yu Peng |
| author_sort | Chien-Ming Kang |
| collection | DOAJ |
| description | Glass-ceramic spray deposition (GCSD) is a novel technique for coating lithium disilicate (LD) glass-ceramics onto zirconia through simple tempering steps. GCSD has been proven to improve the bonding of zirconia to resin cement, but the effect of etching time on GCSD and the long-term durability of the bond achieved remain unknown. The effects of air abrasion with aluminum particles (ABB) and air abrasion (GAB) or etching with 5.0% hydrogen fluoride (HF) for 20, 60, 90, and 120 s (G20, G60, G90, and G120) on the resin cement–zirconia bond were studied. LD was included as a control (LDG). The microstructure, sub-micron roughness, wettability, and phase changes of samples were analyzed. After resin cement was bonded to zirconia, half of the samples were subjected to thermocycling (5000 cycles at 5–55 °C). The bond strengths of the samples were determined in shear bond strength (SBS) tests (n = 10 per group). An LD structure can be formed on zirconia after GCSD and proper etching processes, which result in high roughness and a hydrophilic nature. GCSD and HF etching significantly improved SBS, with G90 and G120 samples with pre- or post-thermocycling exhibiting SBS values comparable to those of LDG (<i>p</i> > 0.760). The surface characteristics of the LD layer are influenced by the etching time and affect the SBS of the bond of zirconia to resin cement. HF etching for 90–120 s after GCSD results in zirconia with SBS and bond durability comparable to LD. |
| first_indexed | 2024-03-09T19:01:11Z |
| format | Article |
| id | doaj.art-00a2e31ce6ef4d42a166fe1396109531 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T19:01:11Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-00a2e31ce6ef4d42a166fe13961095312023-11-24T04:57:09ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-10-0123211278310.3390/ijms232112783Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental RestorationsChien-Ming Kang0Dan-Jae Lin1Sheng-Wei Feng2Cheng-Yuan Hung3Shogo Iwaguro4Tzu-Yu Peng5Huayi Dental Laboratory, Taipei 10491, TaiwanDepartment of Biomedical Engineering, College of Biomedical Engineering, China Medical University, Taichung 40402, TaiwanSchool of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, TaiwanDepartment of Dentistry, National Yang Ming Chiao Tung University, Taipei 11221, TaiwanDivision of Dental Technician, Department of Clinical Practice and Support, Hiroshima University Hospital, Hiroshima 734-8551, JapanSchool of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, TaiwanGlass-ceramic spray deposition (GCSD) is a novel technique for coating lithium disilicate (LD) glass-ceramics onto zirconia through simple tempering steps. GCSD has been proven to improve the bonding of zirconia to resin cement, but the effect of etching time on GCSD and the long-term durability of the bond achieved remain unknown. The effects of air abrasion with aluminum particles (ABB) and air abrasion (GAB) or etching with 5.0% hydrogen fluoride (HF) for 20, 60, 90, and 120 s (G20, G60, G90, and G120) on the resin cement–zirconia bond were studied. LD was included as a control (LDG). The microstructure, sub-micron roughness, wettability, and phase changes of samples were analyzed. After resin cement was bonded to zirconia, half of the samples were subjected to thermocycling (5000 cycles at 5–55 °C). The bond strengths of the samples were determined in shear bond strength (SBS) tests (n = 10 per group). An LD structure can be formed on zirconia after GCSD and proper etching processes, which result in high roughness and a hydrophilic nature. GCSD and HF etching significantly improved SBS, with G90 and G120 samples with pre- or post-thermocycling exhibiting SBS values comparable to those of LDG (<i>p</i> > 0.760). The surface characteristics of the LD layer are influenced by the etching time and affect the SBS of the bond of zirconia to resin cement. HF etching for 90–120 s after GCSD results in zirconia with SBS and bond durability comparable to LD.https://www.mdpi.com/1422-0067/23/21/12783zirconialithium disilicate glass-ceramicspray depositionthermocyclingshear bond strengthdental restorations |
| spellingShingle | Chien-Ming Kang Dan-Jae Lin Sheng-Wei Feng Cheng-Yuan Hung Shogo Iwaguro Tzu-Yu Peng Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations International Journal of Molecular Sciences zirconia lithium disilicate glass-ceramic spray deposition thermocycling shear bond strength dental restorations |
| title | Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations |
| title_full | Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations |
| title_fullStr | Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations |
| title_full_unstemmed | Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations |
| title_short | Innovation Glass-Ceramic Spray Deposition Technology Improving the Adhesive Performance for Zirconium-Based Dental Restorations |
| title_sort | innovation glass ceramic spray deposition technology improving the adhesive performance for zirconium based dental restorations |
| topic | zirconia lithium disilicate glass-ceramic spray deposition thermocycling shear bond strength dental restorations |
| url | https://www.mdpi.com/1422-0067/23/21/12783 |
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