Barros Érico Luiz Damasceno, Pinto Shelon Cristina Souza, Borges Alvaro Henrique, Tonetto Mateus Rodrigues, Ellwood Roger Phillip, Pretty Ian, Bandéca Matheus Coelho
CEUMA University, 01 Josué Montello Street, Renascença II, 65075-120 São Luís, MA, Brazil.
University of Ponta Grossa State, General Carlos Cavalcanti 4748, Ponta Grossa, PR, Brazil.
ScientificWorldJournal. 2015;2015:468582. doi: 10.1155/2015/468582. Epub 2015 Mar 23.
This study evaluated the effect of high fluoride dentifrice on the bond strength of brackets after erosive challenge. Eighty-four enamel specimens were divided into seven groups (n = 12): WN (distilled water/no acid challenge), W3C (distilled water/3 cycles of acid challenge), and W6C (distilled water/6 cycles of acid challenge) were not submitted to dentifrice treatment. Groups RF3C (regular fluoride dentifrice/3 cycles of acid challenge) and RF6C (regular fluoride dentifrice/6 cycles of acid challenge) were treated with dentifrices containing 1450 μg F(-)/g and HF3C (high fluoride dentifrice/3 cycles of acid challenge) and HF6C (high fluoride dentifrice/6 cycles of acid challenge) were with 5000 μg F(-)/g. Acid challenges were performed for seven days. After bond strength test, there was no significant difference among groups submitted to 3 cycles of acid challenge (P > 0.05). Statistically significant difference was found between the regular and high fluoride dentifrices after 6 cycles of acid challenge (<0.05). Similar areas of adhesive remaining were found among control groups and among groups W6C, RF3C, RF6C, HF3C, and HF6C. The high fluoride dentifrice was able to prevent the reduction of bond strength values of brackets submitted to acid challenge.
the high fluoride toothpaste prevents debonded brackets on erosive enamel.
本研究评估了高氟牙膏对酸蚀挑战后托槽粘结强度的影响。84个釉质标本被分为7组(n = 12):WN组(蒸馏水/无酸蚀挑战)、W3C组(蒸馏水/3次酸蚀挑战循环)和W6C组(蒸馏水/6次酸蚀挑战循环)未进行牙膏处理。RF3C组(普通含氟牙膏/3次酸蚀挑战循环)和RF6C组(普通含氟牙膏/6次酸蚀挑战循环)用含1450μg F(-)/g的牙膏处理,HF3C组(高氟牙膏/3次酸蚀挑战循环)和HF6C组(高氟牙膏/6次酸蚀挑战循环)用含5000μg F(-)/g的牙膏处理。酸蚀挑战进行7天。粘结强度测试后,接受3次酸蚀挑战循环的各组之间无显著差异(P > 0.05)。在6次酸蚀挑战循环后,普通含氟牙膏和高氟牙膏之间存在统计学显著差异(<0.05)。在对照组以及W6C、RF3C、RF6C、HF3C和HF6C组中发现了相似的粘结剂残留面积。高氟牙膏能够防止酸蚀挑战后托槽粘结强度值的降低。
高氟牙膏可防止酸蚀釉质上的托槽脱粘。