出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：Objective: To evaluate the pH of three different brands of toothpaste and antiseptic used to prevent and relieve tooth sensitivity. Materials and methods: Three different brands of dentifrices were used: Sensodyne PRO-enamel, Colgate sensitive PRO-alívio, and Colgate Total 12, all commercially available. For data analysis, 5g of each brand was weighed on a precision analytical balance, then 15 ml of distilled water were added for later reading. Meanwhile, the antiseptics considered for the research were Elmex sensitive, Sensodyne and Colgate Total 12. 40ml of each brand was used. The hydrogen ion potential (pH) was measured by the metric potential method in a digital pH meter. The tests were performed in quintuplicate and the data analyzed by ANOVA/one-way with a significance level of 5%. Results: The dentifrice pH values ranged between 7.95 ± 0.05 (Colgate Total 12) and 9.71 ± 0.06 (Colgate sensitive PRO-alívio), with a significant difference between all brands evaluated (p 0.05). But Sensodyne had a higher and neutral pH and with a significant difference when compared to the two previous brands (p<0.05). Conclusion: Toothpastes are in the ideal pH range for use and mouthwashes do not have a potentially erosive pH, as they are within the safety range.
