Perdok J F, Van Der Mei H C, Busscher H J, Genet M J, Rouxhet P G
Dental School Groningen, The Netherlands.
J Clin Dent. 1990 Fall;2(2):43-7.
The adsorption of active agents from six commercially available mouthrinses to ground and polished enamel, with and without adsorbed salivary constituents, was monitored by contact angle measurements and X-ray Photoelectron Spectroscopy (XPS). Human enamel samples were treated with mouthrinses containing chlorhexidine (Peridex), stannous fluoride/amine fluoride (Meridol), thymol/benzoic acid (Listerine), sanguinarine (Veadent), sodium fluoride (Prodent), or cetylpyridinium chloride (Merocet). XPS indicated a sizeable adsorption of both active and non-active components for all products. After treatment, all enamel surface free energies increased except for the stannous fluoride/amine fluoride containing mouthrinse. It is suggested that non-active components in the products cause an increase in surface free energy. Despite this thermodynamically unfavorable increase in surface free energy, all rinses have plaque reducing effects, indicating that this unfavorable surface characteristic is overruled by the antibacterial properties of the components. Replacement of non-active components by less adsorbing surfactants could increase the efficiency of the products tested.
通过接触角测量和X射线光电子能谱（XPS）监测了六种市售漱口水的活性剂在有或没有吸附唾液成分的研磨和抛光牙釉质上的吸附情况。用人牙釉质样品分别处理含有洗必泰（派丽奥）、氟化亚锡/氟化胺（美利诺）、百里酚/苯甲酸（李施德林）、血根碱（卫齿）、氟化钠（普诺顿）或西吡氯铵（美洛西）的漱口水。XPS表明，所有产品的活性和非活性成分都有相当程度的吸附。处理后，除含氟化亚锡/氟化胺的漱口水外，所有牙釉质表面自由能均增加。研究表明，产品中的非活性成分会导致表面自由能增加。尽管表面自由能出现了这种热力学上不利的增加，但所有漱口水都有减少牙菌斑的作用，这表明这种不利的表面特性被成分的抗菌性能所克服。用吸附性较小的表面活性剂替代非活性成分可能会提高所测试产品的效率。
