COVID-19 Update - This is to inform you that the Government of India has announced a complete lockdown in India 22nd March 2020 to 14th April 2020. As a result, our offices will now be closed till 14th April 2020 and all our employees will be working from home. Office telephones will not be answered, and therefore you are requested to direct all your queries related to manuscript submission, review process, publication etc. at below mentioned details.,, Mob. 8826373757, 8826859373, 9910947804

Article view: 590

Article download: 210

IP Indian Journal of Orthodontics and Dentofacial Research

Assessment of The Remineralization Potential of Recently Developed Nano Hydroxyapatite on The Demineralized Enamel Around orthodontic Brackets

Full Text PDF Share on Facebook Share on Twitter

Author Details : Mai Gamal, Ahmed A.El-Baily, Manal F.Osman, Marwa S. Shamaa

Volume : 3, Issue : 4, Year : 2017

Article Page : 218-225

Suggest article by email


Objective: This study was evaluated the ability of Nano hydroxyapatite (nano-HAP) to remineralize the demineralized enamel layer around the orthodontic brackets.
Materials and Methods: This study was done on thirty sound freshly extracted permenant premolars. 3M-Unitek brackets were bonded to the buccal surfaces of all specimens. The specimens were artificially demineralized and randomly classified into 3 equal groups A, B and C. They were immersed in artificial saliva for 10days and during this period, group B was treated with 20% nano-HAP varnish, group C was treated with 3%nano-HAP +0.145%sodium fluoride(NaF) paste, while group A was the control group. Selected specimens of each group were scanned by scanning electron microscope (SEM) and assessed by energy dispersive x-ray analysis(EDAX) before and after remineralization, then all samples were subjected to enamel color changes assessment by spectrophotometer and surface roughness assessment by profilometer. The results were statistically analyzed. Significance of the results was set at 0.05.
Results: Showed that there were significant increase (P<0.001) in both Calcium and Phosphorus levels after remineralization by nano-HAP. This was detected by EDAX and confirmed by SEM. There was a significant improvement in the color measurements after application of nano-HAP in the study groups when compared to the control group (P<0.001), also the surface roughness has significantly decreased (P<0.001).
Conclusion: The findings of our study indicated that nano-HAP with the used protocol in this study could be effective in repairing the demineralized enamel around the orthodontic brackets, restoringthe enamel surface smoothness and its color.

Keywords: Demineralization, Brackets, Remineralization; Nanohydroxyapetite

How to cite : Gamal M, A.el-baily A, F.osman M, Shamaa M S, Assessment of The Remineralization Potential of Recently Developed Nano Hydroxyapatite on The Demineralized Enamel Around orthodontic Brackets. IP Indian J Orthod Dentofacial Res 2017;3(4):218-225

Copyright © 2017 by author(s) and IP Indian J Orthod Dentofacial Res. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (