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Clinical Efficacy in Relieving Dentin Hypersensitivity of Nanohydroxyapatite-Containing Toothpastes and Cream

Dentin Sensitivity Clinical Trial

Official title:
Clinical Efficacy in Relieving Dentin Hypersensitivity of Nanohydroxyapatite-Containing Toothpastes and Cream

Clinical Trial Summary

This study will investigate the effectiveness of nanohydroxyapatite (nano-HAP)-containing toothpastes and cream to relieve dentin hypersensitivity, comparing it with those of a commercial desensitizing dentifrice containing calcium sodium phosphosilicate (Novamin® technology) and a standard fluoride dentifrice containing 1,500 ppm fluoride as sodium monofluorophosphate (MFP).

Clinical Trial Description

This is a double-blind, randomized, controlled, parallel group, outpatient clinical trial, involving a total of 270 patients diagnosed with dentin hypersensitivity, who will be randomly assigned to nine treatment groups of 30 patients each. Males or females of age 18 to 80 years will be enrolled. The nine groups will be randomly assigned to use one of the nine test products: (1) toothpaste containing nano-HAP (high concentration); (2) toothpaste containing nano-HAP (low concentration); (3) toothpaste containing nano-HAP and potassium nitrate (KNO3); (4) toothpaste containing NovaMin; (5) standard fluoride toothpaste with 1500 ppm MFP; (6) toothpaste containing nano-HAP (medium concentration); (7) placebo toothpaste; (8) cream containing nano-HAP; (9) placebo cream. Subjects will be instructed to use the study toothpaste as their sole oral hygiene product for the 8 weeks treatment duration while the cream will be applied with a retainer tray for 5 minutes before bed at night. For those using toothpastes, subjects will be instructed to brush their teeth twice daily for 2 minutes, morning and last thing before bed, applying on each occasion a one-inch strip of their assigned toothpaste on a wetted commercially available soft-bristled toothbrush. Dentin hypersensitivity examination, which will include air blast sensitivity and cold thermal sensitivity combined with visual analog scale and Dental Pain Scale, will be conducted at baseline, 2, 4, 6, and 8 weeks. Subjects will be screened for adverse effects on every visit, and all observed adverse events will be recorded when they occur. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02918617
Study type Interventional
Source The University of Texas Health Science Center at San Antonio
Contact
Status Completed
Phase Phase 2
Start date May 2015
Completion date September 2016
View Details
See also
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