| Autor: |
Agarwal, Manila, Dinesh, K., Mathew, Sylvia, Ramesh, Poornima, Shetty, Nithin Kumar, Narayana, Indiresha H. |
| Předmět: |
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| Zdroj: |
Journal of Conservative Dentistry; Nov/Dec2022, Vol. 25 Issue 6, p648-653, 6p |
| Abstrakt: |
Context: The resin–dentin interface is less durable, which reduces the longevity of tooth‑colored restorations. To encounter this shortcoming, the use of nanotechnology to mimic biomineralization proves beneficial. Aims: This study was conducted to evaluate the effect of remineralization with strontium‑doped nanohydroxyapatite (Sr‑nHAp) with chitosan on shear bond strength of resin composite to dentin. Materials and Methods: Sixty five extracted human premolars were divided into five groups (n = 13) based on remineralization protocol as: Group A – 20% (Sr‑nHAp) with chitosan, Group B – 10% (Sr‑nHAp) with chitosan, Group C – 20% (Sr‑nHAp) with simulated body fluid, Group D – 10% (Sr‑nHAp) with simulated body fluid, and Group E – control. Following bonding, resin composite of specified dimension was built and was subjected to shear bond strength test after 24 h and 1 week using Universal Testing Machine, and mode of failure was assessed. ANOVA and paired sample t‑test were used for analyzing the data, and the level of significance was set at 5%. Results: The highest value of shear bond strength was obtained from Group A after aging for a week, and there is a significant increase in the value of all the groups as compared to the control group after 1 week of storage than 24 h. Conclusions: Remineralization with Sr‑nHAp and chitosan has positively improved the bond strength of resin to dentin at the end of 1 week. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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