An in situ/ex vivo comparison of the ability of regular and light colas to induce enamel wear when erosion is combined with abrasion

Autor(es)

Rios, Daniela ^[1] ; Zaidan Santos, Flavia Cardoso ; Honorio, Heitor Marques ^[2] ; Magalhaes, Ana Carolina ^[3] ; Wang, Linda ^[4] ; de Andrade Moreira Machado, Maria Apareolda ^[1] ; Rabelo Buzalaf, Marilia Afonso ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Bauru Sch Dent, Dept Pediat Dent, Sao Paulo - Brazil

^[2] Alfenas Fed Univ, Dept Pediat Dent, Alfenas - Brazil

^[3] Univ Sao Paulo, Bauru Sch Dent, Dept Biol Sci, Sao Paulo - Brazil

^[4] Univ Sao Paulo, Bauru Sch Dent, Dept Operat Dent, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Quintessence International; v. 42, n. 3 MAR 2011.
• Citações Web of Science: 7

Resumo

Objective: To evaluate whether the type of cola drink (regular or diet) could influence the wear of enamel subjected to erosion followed by brushing abrasion, Method and !Materials: Ten volunteers wore intraoral devices that each had eight bovine enamel blocks divided into four groups; ER, erosion with regular cola; EAR, erosion with regular cola plus abrasion; EL, erosion with light cola; and EAL, erosion with light cola plus abrasion, Each day for 1 week, half of each device was immersed in regular cola for 5 minutes, Then, two blocks were brushed using a fluoridated toothpaste and electric toothbrush for 30 seconds four times daily, Immediately after, the other half of the device was subjected to the same procedure using a light cola, The pH, calcium, phosphorus, and fluoride concentrations of the colas were analyzed using standard procedures, Enamel alterations were measured by profilometry. Data were tested using two-way ANOVA and Bonferroni test (P < .05), Results: Regarding chemical characteristics, light cola presented pH 3.0, 13.7 mg Ca/L, 15.5 mg P/L, and 0.31 mg F/L, while regular cola had pH 2.6, 32.1 mg Ca/L, 1:8.1 mg P/L, and 0.26 mg F/L, The light cola promoted less enamel loss (EL, 0.36 pm; EAL, 0.39 pm) than its regular counterpart (ER, 0.72 pm; EAR, 0.95 pm) for both conditions, There was not a significant difference (P > .05) between erosion and erosion plus abrasion for light cola, However, for regular cola, erosion plus abrasion resulted in higher enamel loss than erosion alone,.nclusion: The data suggest that light cola promoted less enamel wear even when erosion was followed by brushing abrasion, (Quintessence Int 2011;42:xxx-xx)() (AU)

• Processo FAPESP: 07/07296-1 - Efeito da abrasão sobre o esmalte previamente erodido com um refrigerantes tipo cola light -estudo in situ
• Beneficiário: Flávia Zaidan Cardoso dos Santos
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 06/03874-8 - Avaliação in situ do efeito sinérgico entre desafio cariogênico e erosivo no esmalte dentário
• Beneficiário: Daniela Rios Honório
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado