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Year : 2022  |  Volume : 12  |  Issue : 2  |  Page : 252-259

The effect of toothpastes containing hydroxyapatite, fluoroapatite, and Zn-Mg-hydroxyapatite nanocrystals on dentin hypersensitivity: A randomized clinical trial

Department of Therapeutic Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia

Correspondence Address:
Dr. Ksenia Babina
Department of Therapeutic Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), 11, Mojaiskii val str, 119991 Moscow.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_333_21

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Aims: The aim of this study was to compare the effect of toothpastes containing hydroxyapatite (nHAP), Zn-Mg-hydroxyapatite (nZnMgHAP), and fluorapatite (nFAP) nanocrystals on dentin hypersensitivity (DH) associated with noncarious cervical lesions. Materials and Methods: Thirty consenting volunteers aged 35−45 years with DH were enrolled in a double-blind, parallel study, randomly assigned to the nHAP group (n = 10), the nZnMgHAP group (n = 10), or the nFAP group (n = 10), and instructed to use the toothpaste twice daily for one month. The primary outcome was Schiff scores at baseline and after 2 and 4 weeks. Results: All patients fulfilled the study requirements, and no adverse effects were registered. A reduction in DH was registered in 90%, 100%, and 50% of patients using nHAP, nZnMgHAP, and nFAP-containing toothpastes with effect sizes 2.52 (confidence interval [CI] 95%: 0.82, 4.14), 3.30 (CI 95%: 1.33, 5.20), and 1.44 (CI 95%: 0.09, 2.72), respectively. At 4 weeks, Schiff index scores decreased significantly in all groups compared to baseline. Conclusions: nZnMgHAP may be considered a promising agent for DH management.

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