Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study
Purpose. Secondary caries originate from a leakage pathway where oral acids can penetrate faster and demineralize the tooth substrate deeper which can be visualized by dye penetration. The ability to prevent secondary caries by contemporary adhesive systems was evaluated in this study. Dye penetrati...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2020/5859835 |
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| author | Morakot Piemjai Pareewan Chantarawej Nobuo Nakabayashi |
| author_facet | Morakot Piemjai Pareewan Chantarawej Nobuo Nakabayashi |
| author_sort | Morakot Piemjai |
| collection | DOAJ |
| description | Purpose. Secondary caries originate from a leakage pathway where oral acids can penetrate faster and demineralize the tooth substrate deeper which can be visualized by dye penetration. The ability to prevent secondary caries by contemporary adhesive systems was evaluated in this study. Dye penetration distance through leakage and into the tooth substrate adjacent to Class V restorations after artificial caries exposure was compared. Materials and Methods. Previously frozen extracted human molars were used to prepare the Class V cavities at the CEJ on axial surfaces. All cavities were restored with either the resin-composite or amalgam with or without resin adhesives: dry bonding: Super-Bond D-Liner II Plus; moist bonding: All-Bond 2; and self-etch bonding: AQ Bond and Clearfil Protect Bond. Two subgroups of Super-Bond D-Liner II Plus were immersed for 14 days at 37°C either in artificial saliva (negative control) or the artificial caries solution. The other groups were soaked in the artificial caries solution. The distance of dye penetration into the adjacent enamel, cementum/dentin, and tooth-resin interfaces was measured after immersion in 0.5% basic fuchsin dye for 24 h. The tooth-resin interfacial layer was investigated using SEM. Results. No dye penetration into the tooth-resin interface was found in Super-Bond D-Liner II Plus and AQ Bond groups which demonstrated a constant hybrid layer after a chemical challenge. The leakage distance at the cementum/dentin-resin interface of All-Bond 2, Clearfil Protect Bond, and non-adhesive amalgam (positive control) groups was significantly higher than the distance of dye penetration into the adjacent demineralized root surface (p<0.05). Conclusion. Caries associated with either amalgam or resin-composite restorations can be prevented using resin adhesives which can penetrate into the intact tooth substrate to form a stable hybrid layer. With caries-free restorations, tooth vitality may be conserved lifelong. |
| format | Article |
| id | doaj-art-6a7846b7f580469a929753d9c19064d1 |
| institution | Kabale University |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-6a7846b7f580469a929753d9c19064d12025-02-03T00:58:48ZengWileyInternational Journal of Dentistry1687-87281687-87362020-01-01202010.1155/2020/58598355859835Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro StudyMorakot Piemjai0Pareewan Chantarawej1Nobuo Nakabayashi2Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, ThailandDepartment of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, ThailandDepartment of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, ThailandPurpose. Secondary caries originate from a leakage pathway where oral acids can penetrate faster and demineralize the tooth substrate deeper which can be visualized by dye penetration. The ability to prevent secondary caries by contemporary adhesive systems was evaluated in this study. Dye penetration distance through leakage and into the tooth substrate adjacent to Class V restorations after artificial caries exposure was compared. Materials and Methods. Previously frozen extracted human molars were used to prepare the Class V cavities at the CEJ on axial surfaces. All cavities were restored with either the resin-composite or amalgam with or without resin adhesives: dry bonding: Super-Bond D-Liner II Plus; moist bonding: All-Bond 2; and self-etch bonding: AQ Bond and Clearfil Protect Bond. Two subgroups of Super-Bond D-Liner II Plus were immersed for 14 days at 37°C either in artificial saliva (negative control) or the artificial caries solution. The other groups were soaked in the artificial caries solution. The distance of dye penetration into the adjacent enamel, cementum/dentin, and tooth-resin interfaces was measured after immersion in 0.5% basic fuchsin dye for 24 h. The tooth-resin interfacial layer was investigated using SEM. Results. No dye penetration into the tooth-resin interface was found in Super-Bond D-Liner II Plus and AQ Bond groups which demonstrated a constant hybrid layer after a chemical challenge. The leakage distance at the cementum/dentin-resin interface of All-Bond 2, Clearfil Protect Bond, and non-adhesive amalgam (positive control) groups was significantly higher than the distance of dye penetration into the adjacent demineralized root surface (p<0.05). Conclusion. Caries associated with either amalgam or resin-composite restorations can be prevented using resin adhesives which can penetrate into the intact tooth substrate to form a stable hybrid layer. With caries-free restorations, tooth vitality may be conserved lifelong.http://dx.doi.org/10.1155/2020/5859835 |
| spellingShingle | Morakot Piemjai Pareewan Chantarawej Nobuo Nakabayashi Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study International Journal of Dentistry |
| title | Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study |
| title_full | Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study |
| title_fullStr | Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study |
| title_full_unstemmed | Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study |
| title_short | Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study |
| title_sort | evaluation of caries free restorations bonded with various adhesive systems in vitro study |
| url | http://dx.doi.org/10.1155/2020/5859835 |
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