Counteractive effect of antacid suspensions on intrinsic dental erosion

Autor(es)

Turssi, Cecilia P. ^[1] ; Vianna, Lidia M. F. F. ^[1] ; Hara, Anderson T. ^[2] ; do Amaral, Flavia L. B. ^[1] ; Franca, Fabiana M. G. ^[1] ; Basting, Roberta T. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Leopoldo Mandic Res Ctr & Inst, Campinas, SP - Brazil

^[2] Indiana Univ, Sch Dent, Oral Hlth Res Inst, Indianapolis, IN - USA

• Tipo de documento: Artigo Científico
• Fonte: European Journal of Oral Sciences; v. 120, n. 4, p. 349-352, AUG 2012.
• Citações Web of Science: 11

Resumo

This in vitro study aimed to investigate the anti-erosive effect of antacid suspensions applied to enamel after exposure to hydrochloric acid (HCl). Ninety bovine enamel slabs were embedded, flattened, and polished. Reference areas were created and specimens were divided into six groups. They were exposed to 0.01 M HCl (pH 2) for 2 min, followed by immersion for 1 min in one of the following test suspensions: magnesium hydroxide, aluminum hydroxide, magnesium hydroxide/aluminum hydroxide, sodium alginate/sodium bicarbonate/calcium carbonate, or hydrated magnesium aluminate. Artificial saliva was used as a negative control. Specimens were subjected to a total of five cycles of erosion/antacid treatment. Enamel surface loss was measured (in micrometers) by optical profilometry. In addition, baseline and final surface microhardness (SMH) values of enamel were obtained. It was found that antacid suspensions significantly reduced enamel loss, and that similar protection was afforded by all formulations. No differences were observed between the final enamel SMH values among groups. Antacid suspensions counteracted HCl-induced enamel loss, although they were not effective in reducing enamel softening. Mouth rinsing with antacid suspensions after vomiting can potentially represent a promising strategy to counteract enamel loss caused by erosion. (AU)

• Processo FAPESP: 11/10789-5 - Controle da erosão dental de origem intrínseca por suspensões orais com potencial neutralizante
• Beneficiário: Lidia Mendes Francisco Faria Vianna
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 11/02533-0 - Avaliação de estratégias para o controle da erosão dental causada por ácidos de origem endógena e exógena
• Beneficiário: Cecilia Pedroso Turssi
• Modalidade de apoio: Auxílio à Pesquisa - Regular