Effect of Dentifrices Against Hydrochloric Acid-induced Erosion

Author(s)

Furtado Messias, Danielle Cristine ^[1] ; Maeda, Fernando Akio ^[2] ; Turssi, Cecilia Pedroso ^[3] ; Serra, Monica Campos ^[4]

Affiliation

^[1] Univ Ribeirao Preto, Sch Dent, BR-14096900 Ribeirao Preto, SP - Brazil

^[2] Univ Sao Paulo, Dept Dent Mat, Sch Dent, Sao Paulo - Brazil

^[3] Univ Uberaba, Sch Dent, Uberaba, MG - Brazil

^[4] Univ Sao Paulo, Dept Restorat Dent, Sch Dent Ribeirao Preto, BR-14049 Ribeirao Preto, SP - Brazil

• Document type: Journal article
• Source: ORAL HEALTH & PREVENTIVE DENTISTRY; v. 9, n. 3, p. 269-273, 2011.
• Web of Science Citations: 7

Abstract

Purpose:: This in vitro investigation assessed whether different dentifrices would be capable of controlling the enamel erosion progression caused by HCl. Materials and Methods: Sixty bovine enamel slabs were covered with acid-resistant varnish, except for a 2.5-mm(2) circular area on the labial surface. According to a complete block design, the experimental units were immersed in HCl solution (pH 1.2; 0.1M). After storage in artificial saliva for 1 h, specimens (n = 15) were exposed to different dentifrices: Sensodyne Cool Gel (1100 ppm F), Sensodyne ProNamel (1450 ppm F), and Prey Dent 5000 (5000 ppm F). The control group was immersed in deionised water. Following five cycles of erosive challenge, the slabs were prepared for porosity evaluation using solutions of copper sulfate and rubeanic acid. Results: ANOVA demonstrated no difference in the enamel porosity as a function of the dentifrice employed (P = 0.5494). Conclusion: The damage caused by a simulated intrinsic erosive challenge seems unable to be controlled by fluoridated dentifrices, even when this ion is found in elevated concentrations. (AU)

• FAPESP's process: 06/05623-2 - In situ effect study of a sodium bicarbonate solution on enamel after simulation of endogenous dental erosion
• Grantee: Danielle Cristine Furtado Messias
• Support Opportunities: Scholarships in Brazil - Doctorate