Lam Tracie, Ho Jessica, Anbarani Afarin Golabgir, Liaw Lih-Huei, Takesh Thair, Wilder-Smith Petra
Beckman Laser Institute, University of California, Irvine, CA, USA.
Dentistry (Sunnyvale). 2016 Oct;6(10). doi: 10.4172/2161-1122.1000397. Epub 2016 Oct 25.
Objective was to evaluate the effects of a novel dental gel (Livionex gel) vs. a comparison dental gel on the surfaces of pre-eroded enamel chips.
On days 1-5, after toothbrushing with dentifrice, nine subjects each wore 8 enamel chips mounted on a palatal appliance for 4 h. Enamel blocks were pre-demineralized daily. After 2 day washout, subjects repeated the protocol using fresh chips and the second toothpaste on days 8-12. Samples were evaluated using electron microscopy.
Ten standardized enamel surface photomicrographs/sample (total 1440 images) were evaluated for signs of erosion visually and on a scale of 0-3 by 1 evaluator. No significant differences were found between the 2 groups (p>0.32, 95% C.I.). Minimal surface erosion on approx. 15% of sample area was visible in both groups.
The enamel surface appeared similar after usage of a test or control dentifrice. Based on this study, the test formulation did not affect enamel surface recovery from an erosive challenge.
Dentifrices can contribute to maintaining a healthy enamel surface. An all-natural dental gel formulation with novel anti-plaque mechanism achieved similar recovery from acid challenge to enamel as a control gel.
目的是评估一种新型牙科凝胶（Livionex凝胶）与对照牙科凝胶对预侵蚀牙釉质片表面的影响。
在第1 - 5天，用牙膏刷牙后，9名受试者每人佩戴8片安装在上颚矫治器上的牙釉质片4小时。牙釉质块每天进行预脱矿处理。经过2天的洗脱期后，受试者在第8 - 12天使用新鲜的牙釉质片和第二种牙膏重复该方案。使用电子显微镜对样本进行评估。
由1名评估人员对每个样本的10张标准化牙釉质表面显微照片（共1440张图像）进行视觉评估，并按0 - 3级评分以观察侵蚀迹象。两组之间未发现显著差异（p>0.32，95%置信区间）。两组中约15%的样本区域均可见最小程度的表面侵蚀。
使用测试牙膏或对照牙膏后，牙釉质表面看起来相似。基于本研究，测试配方对牙釉质表面从侵蚀性刺激中恢复没有影响。
牙膏有助于维持健康的牙釉质表面。一种具有新型抗牙菌斑机制的全天然牙科凝胶配方在牙釉质从酸侵蚀中恢复方面与对照凝胶取得了相似的效果。
