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Effect of Salvadora persica extract (miswak) on the dentinal tubules of sound root dentin: Scanning electron microscope study

1 Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
2 Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia

Correspondence Address:
Amal I Linjawi,
Department of Orthodontic, Faculty of Dentistry, King Abdulaziz University, P.O. Box 80209, Jeddah 21589
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JMAU.JMAU_49_20

Background/Purpose: Root dentin is vulnerable to a higher risk of demineralization than coronal enamel. This study aimed to evaluate the effect of miswak extract on the dentinal tubules of sound root dentin. Materials and Methods: Twenty bovine root dentin blocks, approximately 2 mm × 3 mm × 3 mm (width × length × depth) in dimensions, were prepared from freshly extracted sound bovine incisors. The sample was divided into two groups: control and miswak group. The control group had sound root dentin block and the miswak test group was treated with miswak extract 20% for 24 h. The two groups of all specimens were subjected to ultrasonication for 10 min. Scanning electron microscope images were analyzed for surface typography. Results: Fifty percent of the control group had surface particles (SPs), while the other 50% had no SPs. For the dentinal tubules, all (100%) the control group had a mixture of opened and partially opened dentinal tubules. On the other hand, for the miswak group, all (100%) the sample had SPs and blocked dentinal tubules. Conclusion: Miswak showed total blocking of the dentinal tubules compared to the control group. This might indicate that miswak has a role in reducing dentinal hypersensitivity of exposed root dentin.

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