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ORIGINAL RESEARCH
Year : 2018  |  Volume : 10  |  Issue : 4  |  Page : 176-179

A comparative study of the effect of nanohydroxyapatite and eggshell on erosive lesions of the enamel of permanent teeth following soft drink exposure: A randomized clinical trial


Department of Pediatric Dentistry, Faculty of Dentistry, Shahed University, Tehran, Iran

Correspondence Address:
Dr. Roza Haghgoo
Department of Pediatric Dentistry, Dental School, Shahed University, N71, Italia Street, Vesal Av., Tehran
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jioh.jioh_84_18

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Aims: The purpose of this in situ study was to compare the effects of nanohydroxyapatite or eggshell (ES) extract on the microhardness of healthy third molar tooth enamel following soft drink exposure. Materials and Methods: This study was performed as a randomized clinical trial. This experimental study was conducted with ten participants and involved twenty extracted, healthy, permanent third molar teeth. The initial microhardness values of the teeth were measured. The teeth were then exposed to delestre for 10 min, and the microhardness was measured again. Samples were divided into two groups of 10. For each appliance, two teeth were placed, one from each group and one on either side of the appliance. For the in situ study, sections of two teeth, one from each group, were embedded in an appliance and placed in the mouth of the volunteer. Each volunteer used this appliance for 10 days. After 10 days, the microhardness of the teeth was measured again. Finally, data were analyzed using analysis of variance and paired t-tests. Results: The mean tooth enamel microhardness was significantly decreased following exposure to delestre and the mean microhardness of demineralized tooth enamel significantly increased after exposure to both nanohydroxyapatite and eggshell extract. Conclusion: Nanohydroxyapatite and ES have the potential to remineralization erosive lesions.


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