Remineralizzazione dello smalto esposto all’azione erosiva delle bevande acide

Prevenzione & assistenza dentale Pub Date : 2010-06-01 DOI:10.1016/j.pad.2009.10.001

C. Poggio, M. Lombardini, A. Dagna, F. Porro, M. Chiesa

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Abstract

Objectives

Aim of this in vitro study was to evaluate the effect of a calcium-phosphate based (CPP-ACP) paste in remineralisation of enamel surfaces eroded by acid soft drinks by atomic force microscopy (AFM).

Materials and methods

Twenty-four human caries-free central incisors were randomly and equally divided into four groups; teeth were exposed to the erosive action of two different acid soft drinks (Coca Cola and Gatorade) for 10 minutes twice a day for two weeks. After the second exposure, the teeth of two groups were covered with CPP-ACP paste for 10 minutes every day. Then, the samples were observed under AFM.

Results

All samples revealed increased values of surface roughness after exposure to acid soft drinks. Samples treated with CPP-ACP paste showed a significative reduction of roughness values (p < 0,01).

Conclusions

This study showed that acid soft drinks could erode tooth enamel surface; the use of CPP-ACP paste can enhance enamel remineralization.

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暴露在酸性饮料侵蚀作用下的指甲油的再矿化

目的利用原子力显微镜(AFM)观察磷酸钙基(CPP-ACP)膏体对酸性软饮料侵蚀牙釉质表面再矿化的影响。材料与方法将24颗无龋人中切牙随机等分分为4组;牙齿暴露在两种不同的酸性软饮料(可口可乐和佳得乐)的腐蚀作用下，每天两次，每次10分钟，持续两周。第二次暴露后，两组牙体每天涂敷CPP-ACP膏10分钟。然后，在AFM下观察样品。结果所有样品暴露于酸性软饮料后表面粗糙度值均有所增加。用CPP-ACP膏体处理的样品显示粗糙度值显著降低(p <0 01)。结论酸性软饮料可腐蚀牙釉质表面;使用CPP-ACP膏体可以增强牙釉质再矿化。

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Prevenzione & assistenza dentale

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