Objective: To study the effectiveness of nighttime toothpaste in reducing volatile sulfur compounds (VSCs) in morning halitosis. Materials and methods: Twenty two dental students aged 17-25 years old with concentration of VSCs greater than 100 ppb and no oral pathology nor systemic diseases were selected. Concentration levels of VSCs were measured prior to and after 7 day use of nighttime toothpaste (Dentiste®, Greensville Co., Ltd., Thailand) with Gas chromatography (OralChromaTM, ABILIT Corp., Japan). VSCs levels of the two groups were compared using paired T-test at .05 significant level. Results: The overall concentration levels of VSCs in morning halitosis after use of nighttime toothpaste were decreased. The difference was not statistically significant (p>0.05). However, hydrogen sulfide level in the test group was statistically decreased (p<.05). Conclusion: Nighttime toothpaste was found to decrease the overall concentration levels of VSCs in morning halitosis of this study group after 7 day use. However, the difference was not statistically significant.
Supported by Dental Research Fund, Dental research project, Faculty of Dentistry, Chulalongkorn University