Evaluation of Effectiveness of a Titanium Dioxide(TiO_2)-coated Acrylic Resin Denture Base

二氧化钛(TiO_2)涂层丙烯酸树脂义齿基托的效果评价

• 批准号: 17592044
• 负责人: SUGIYAMA Tetsuya
• 金额: $ 1.47万
• 依托单位: Tokyo Dental College
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17592044/
• 关键词: Titanium Dioxide(TiO_2); The Aged; Denture Base; Cleaning of Denture; Oral Hygiene

Materials and Methods : Two groups of acrylic resin denture base plate specimens were prepared: 1)the TiO_2-coated group, and 2)the Polished group made using a conventional polishing method. The surface roughness and contact angle of plate specimens from both groups were measured. Each plate was immersed in an experimental bolus. Subsequently, the amount of experimental bolus residue left on the surfaces of the plates after ultrasonic cleaning was compared between groups. The groups were further divided into two groups with and without ultraviolet-A ray irradiation during cleaning.Results : The surface roughness of the TiO_2-coated group was greater than that of the Polished group. Inversely, the contact angle of the TiO_2-coated group was smaller than that of the Polished group (one-tenth that of the Polished group). There was a significant reduction in the experimental bolus residue ratio on the surfaces of the TiO_2-coated plates. The use of ultraviolet-A ray irradiation was not significantly different. The decrease in the experimental bolus residue ratio of the TiO_2-coated group was believed to be due to the considerable improvement in the wettability of the plates.Conclusion : The TiO_2 coating on an acrylic resin denture base had a positive effect on its ease of cleaning by preventing the accumulation of experimental bolus residue.

材料和方法：准备了两组丙烯酸树脂义齿基板样品：1）tio_2包被的组，以及2）使用常规抛光方法制成的抛光组。测量了两组的板样本的表面粗糙度和接触角。将每个板浸入实验推注中。随后，比较了两组之间超声清洁后剩下的板表面上留在板表面上的实验推注量。将两组进一步分为两组，在清洁过程中有和没有紫外线辐照。分子：涂有TIO_2涂层组的表面粗糙度大于抛光组的表面粗糙度。相反，TIO_2包涂料组的接触角小于抛光组的接触角（十分之一的抛光组）。 TIO_2涂层板的表面上的实验推注残基比显着降低。使用紫外线-A射线照射没有显着差异。据信，TIO_2包被组的实验推注料残留比的降低是由于板块的润湿性的可观改善。结论：丙烯酸树脂义齿基础上的TiO_2涂层对清洁的易于清洁具有积极作用。通过防止实验推注残基的积累。