Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging
The potential formation and the size of microgaps at the material/dentin interface after various surface modifications of a resin-matrix computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic following artificial aging was investigated. Fifty human third molars were used, and a resin-m...
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2335 |
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| author | Alexandros Galanopoulos Dimitrios Dionysopoulos Constantinos Papadopoulos Petros Mourouzis Kosmas Tolidis |
| author_facet | Alexandros Galanopoulos Dimitrios Dionysopoulos Constantinos Papadopoulos Petros Mourouzis Kosmas Tolidis |
| author_sort | Alexandros Galanopoulos |
| collection | DOAJ |
| description | The potential formation and the size of microgaps at the material/dentin interface after various surface modifications of a resin-matrix computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic following artificial aging was investigated. Fifty human third molars were used, and a resin-matrix CAD/CAM ceramic, Lava Ultimate, and a resin cement material, Rely X Ultimate, were tested. CAD/CAM blocks were sectioned, and each slab was luted on the tooth surface using the same resin cement. The surface material was modified using the following treatments: Group 1—no treatment (control); Group 2—hydrofluoric acid (HF) + silane; Group 3—air abrasion with Al<sub>2</sub>O<sub>3</sub> particles (29 μm); Group 4—air abrasion with Al<sub>2</sub>O<sub>3</sub> particles (53 μm); and Group 5—erbium, chromium:yttrium–scandium–gallium–garnet (Er,Cr:YSGG) (2780 nm) laser treatment. The specimens were submitted to thermocycling (5000 cycles: 5 °C–55 °C) and then transversely cut in the middle and examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Larger microgaps were observed in the control and laser-treated groups, with no significant differences (<i>p</i> = 0.452). By contrast, the other three groups presented lower microgap formation, and in some cases, no microgaps were detected. Air-abrasion groups exhibited the lowest microgap formation (<i>p</i> < 0.05). Different surface modifications of the material presented significant differences in the formation of microgaps at the adhesive interface after artificial aging, implying differences in bond strengths among the groups. Air-abrasion pretreatments with Al<sub>2</sub>O<sub>3</sub> particles presented more beneficial results regarding microgap formation. |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:13:01Z |
| publishDate | 2023-02-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-6766c3fcd89942a89aec35dd7a1845072023-11-16T18:54:30ZengMDPI AGApplied Sciences2076-34172023-02-01134233510.3390/app13042335Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial AgingAlexandros Galanopoulos0Dimitrios Dionysopoulos1Constantinos Papadopoulos2Petros Mourouzis3Kosmas Tolidis4Department of Operative Dentistry, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Operative Dentistry, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Operative Dentistry, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Operative Dentistry, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Operative Dentistry, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceThe potential formation and the size of microgaps at the material/dentin interface after various surface modifications of a resin-matrix computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic following artificial aging was investigated. Fifty human third molars were used, and a resin-matrix CAD/CAM ceramic, Lava Ultimate, and a resin cement material, Rely X Ultimate, were tested. CAD/CAM blocks were sectioned, and each slab was luted on the tooth surface using the same resin cement. The surface material was modified using the following treatments: Group 1—no treatment (control); Group 2—hydrofluoric acid (HF) + silane; Group 3—air abrasion with Al<sub>2</sub>O<sub>3</sub> particles (29 μm); Group 4—air abrasion with Al<sub>2</sub>O<sub>3</sub> particles (53 μm); and Group 5—erbium, chromium:yttrium–scandium–gallium–garnet (Er,Cr:YSGG) (2780 nm) laser treatment. The specimens were submitted to thermocycling (5000 cycles: 5 °C–55 °C) and then transversely cut in the middle and examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Larger microgaps were observed in the control and laser-treated groups, with no significant differences (<i>p</i> = 0.452). By contrast, the other three groups presented lower microgap formation, and in some cases, no microgaps were detected. Air-abrasion groups exhibited the lowest microgap formation (<i>p</i> < 0.05). Different surface modifications of the material presented significant differences in the formation of microgaps at the adhesive interface after artificial aging, implying differences in bond strengths among the groups. Air-abrasion pretreatments with Al<sub>2</sub>O<sub>3</sub> particles presented more beneficial results regarding microgap formation.https://www.mdpi.com/2076-3417/13/4/2335artificial agingEr,Cr:YSGG lasermicrogap formationresin-matrix CAD/CAM ceramicssurface treatments |
| spellingShingle | Alexandros Galanopoulos Dimitrios Dionysopoulos Constantinos Papadopoulos Petros Mourouzis Kosmas Tolidis Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging Applied Sciences artificial aging Er,Cr:YSGG laser microgap formation resin-matrix CAD/CAM ceramics surface treatments |
| title | Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging |
| title_full | Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging |
| title_fullStr | Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging |
| title_full_unstemmed | Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging |
| title_short | Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging |
| title_sort | microgap formation between a dental resin matrix computer aided design computer aided manufacturing ceramic restorative and dentin after various surface treatments and artificial aging |
| topic | artificial aging Er,Cr:YSGG laser microgap formation resin-matrix CAD/CAM ceramics surface treatments |
| url | https://www.mdpi.com/2076-3417/13/4/2335 |
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