Hiệu quả giảm nồng độ khí Sulfur trong khoang miệng của cây cạo lưỡi ở sinh viên 21-26 tuổi đang học tại Viện Đào tạo Răng Hàm Mặt - Trường Đại học Y Hà Nội năm 2012

The study which was conducted on 60 students aged 21 to 26 years at Odonto Stomatology SchoolHanoi Medical University was aimed to evaluate the effect of using tongue scraper in reducing intra-oral sulfur concentration. Research methods: Clinical trial study, 60 objects were selected randomly to two groups: control group brushing teeth without using tongue scraper, treatment group using tongue scraper. Results: The group had a male-to-female ratio of 1:1. The sulfur concentration of 100 percent objects decreased by 76,72 percent to normal level. Conclusions: Use of tongue scraper is an effective method for reducing intra-oral sulfur concentration and halitosis.