Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives
This study investigated the short- and long-term effects of dental adhesives doped with nano-sized bioactive glass 45S5 (BAG) on the resin–dentin interfacial bond strength. Two etch-and-rinse adhesives (Adper Scotchbond Multi-Purpose (ASB) and Solobond Plus (SB)) and one self-etch adhesive (Clearfil...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-07-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/11/8/1894 |
| _version_ | 1797522613124202496 |
|---|---|
| author | Ramona Oltramare Matej Par Dirk Mohn Daniel B. Wiedemeier Thomas Attin Tobias T. Tauböck |
| author_facet | Ramona Oltramare Matej Par Dirk Mohn Daniel B. Wiedemeier Thomas Attin Tobias T. Tauböck |
| author_sort | Ramona Oltramare |
| collection | DOAJ |
| description | This study investigated the short- and long-term effects of dental adhesives doped with nano-sized bioactive glass 45S5 (BAG) on the resin–dentin interfacial bond strength. Two etch-and-rinse adhesives (Adper Scotchbond Multi-Purpose (ASB) and Solobond Plus (SB)) and one self-etch adhesive (Clearfil SE Bond (CF)) were doped with different concentrations of BAG (5, 10, and 20 wt%). The unmodified (0 wt% BAG) commercial adhesives served as control groups. Dentin of 120 molars (n = 10 per group) was treated with the different adhesives, followed by buildups with a conventional composite restorative material. From each tooth, 14 sticks were prepared for micro-tensile bond strength (µTBS) testing. The sticks were stored in simulated body fluid at 37 °C and tested after 24 h or six months for µTBS and failure mode. Data were analyzed using Kruskal–Wallis tests in combination with post-hoc Conover-tests and Wilcoxon signed-rank tests at a level of significance of α = 0.05. After 24 h and six months, both etch-and-rinse adhesives with a low BAG content (up to 10 wt% for ASB and 5 wt% for SB) showed similar µTBSs as their respective control groups (0 wt% BAG). CF showed a significant decrease in µTBS even after addition of 5 wt% BAG. At a high concentration of added BAG (20 wt%), all three adhesives showed a significant decrease in µTBS compared to the unmodified controls. The CF control group showed significantly lower µTBS after 6 months of storage than after 24 h. In contrast, the µTBS of all CF groups modified with BAG was unaffected by aging. In conclusion, the tested etch-and-rinse adhesives can be modified with up to 5 wt% (SB), or 10 wt% (ASB) of BAG without reducing their short- and long-term dentin bond strength. Moreover, the addition of nano-sized BAG may prevent long-term bond strength deterioration of a self-etch adhesive. |
| first_indexed | 2024-03-10T08:31:54Z |
| format | Article |
| id | doaj.art-1cc218929acf40e9aa27c67a751f6b53 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T08:31:54Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-1cc218929acf40e9aa27c67a751f6b532023-11-22T08:57:21ZengMDPI AGNanomaterials2079-49912021-07-01118189410.3390/nano11081894Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental AdhesivesRamona Oltramare0Matej Par1Dirk Mohn2Daniel B. Wiedemeier3Thomas Attin4Tobias T. Tauböck5Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandDepartment of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, CroatiaClinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandStatistical Services, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandClinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandClinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandThis study investigated the short- and long-term effects of dental adhesives doped with nano-sized bioactive glass 45S5 (BAG) on the resin–dentin interfacial bond strength. Two etch-and-rinse adhesives (Adper Scotchbond Multi-Purpose (ASB) and Solobond Plus (SB)) and one self-etch adhesive (Clearfil SE Bond (CF)) were doped with different concentrations of BAG (5, 10, and 20 wt%). The unmodified (0 wt% BAG) commercial adhesives served as control groups. Dentin of 120 molars (n = 10 per group) was treated with the different adhesives, followed by buildups with a conventional composite restorative material. From each tooth, 14 sticks were prepared for micro-tensile bond strength (µTBS) testing. The sticks were stored in simulated body fluid at 37 °C and tested after 24 h or six months for µTBS and failure mode. Data were analyzed using Kruskal–Wallis tests in combination with post-hoc Conover-tests and Wilcoxon signed-rank tests at a level of significance of α = 0.05. After 24 h and six months, both etch-and-rinse adhesives with a low BAG content (up to 10 wt% for ASB and 5 wt% for SB) showed similar µTBSs as their respective control groups (0 wt% BAG). CF showed a significant decrease in µTBS even after addition of 5 wt% BAG. At a high concentration of added BAG (20 wt%), all three adhesives showed a significant decrease in µTBS compared to the unmodified controls. The CF control group showed significantly lower µTBS after 6 months of storage than after 24 h. In contrast, the µTBS of all CF groups modified with BAG was unaffected by aging. In conclusion, the tested etch-and-rinse adhesives can be modified with up to 5 wt% (SB), or 10 wt% (ASB) of BAG without reducing their short- and long-term dentin bond strength. Moreover, the addition of nano-sized BAG may prevent long-term bond strength deterioration of a self-etch adhesive.https://www.mdpi.com/2079-4991/11/8/1894nanosized bioactive glassdental adhesivesetch-and-rinseself-etchmicro-tensile bond strength |
| spellingShingle | Ramona Oltramare Matej Par Dirk Mohn Daniel B. Wiedemeier Thomas Attin Tobias T. Tauböck Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives Nanomaterials nanosized bioactive glass dental adhesives etch-and-rinse self-etch micro-tensile bond strength |
| title | Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives |
| title_full | Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives |
| title_fullStr | Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives |
| title_full_unstemmed | Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives |
| title_short | Short- and Long-Term Dentin Bond Strength of Bioactive Glass-Modified Dental Adhesives |
| title_sort | short and long term dentin bond strength of bioactive glass modified dental adhesives |
| topic | nanosized bioactive glass dental adhesives etch-and-rinse self-etch micro-tensile bond strength |
| url | https://www.mdpi.com/2079-4991/11/8/1894 |
| work_keys_str_mv | AT ramonaoltramare shortandlongtermdentinbondstrengthofbioactiveglassmodifieddentaladhesives AT matejpar shortandlongtermdentinbondstrengthofbioactiveglassmodifieddentaladhesives AT dirkmohn shortandlongtermdentinbondstrengthofbioactiveglassmodifieddentaladhesives AT danielbwiedemeier shortandlongtermdentinbondstrengthofbioactiveglassmodifieddentaladhesives AT thomasattin shortandlongtermdentinbondstrengthofbioactiveglassmodifieddentaladhesives AT tobiasttaubock shortandlongtermdentinbondstrengthofbioactiveglassmodifieddentaladhesives |