College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Department of General Dentistry, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Am J Dent. 2022 Jun;35(2):161-164.
To evaluate the laboratory long-term effect of various whitening dentifrices on the surface roughness of two brands of resin composite (TPH ST, Filtek Bulk Fill One) using a mechanical toothbrushing simulation.
Thirty-two samples each of Filtek and TPH were fabricated in ring molds 10 x 1 mm. Samples were randomly grouped (n=8; four groups), according to dentifrice used; Crest 3D, Optic White, Hello (charcoal), and Aim as control. Samples were brushed in mixed solutions containing deionized water and dentifrice at 150 gf for 10,000x with rotation to ensure uniform brushing. Surface roughness was measured both before (baseline) and after the mechanical toothbrushing simulation using a stylus profilometer. Data collected was compared independently for each treatment using two-way ANOVA and SNK with α< 0.05 for significance.
The data showed that TPH was more susceptible to the abrasive nature of three of the whitening dentifrices tested [Crest 3D, Optic White, and Hello (charcoal) ]. Filtek also exhibited significant susceptibility to the abrasive nature of Hello. Aim showed the least or minimal amount of abrasion.
TPH ST composite was more susceptible to the abrasive nature of the three whitening dentifrices tested [Crest 3D, Optic White, and Hello (charcoal)]. Filtek also exhibited significant susceptibility to the abrasive nature of Hello. Aside from the data supporting the clinical efficacy of TPH compared to Filtek, clinicians should inform patients of the abrasive capacity of all whitening dentifrices, especially those that are charcoal based.
通过机械刷牙模拟，评估不同美白牙膏对两种品牌树脂复合材料（TPH ST、Filtek Bulk Fill One）表面粗糙度的实验室长期影响。
在环模中分别制作 32 个 TPH 和 Filtek 样本，每个样本 10 x 1mm。根据使用的牙膏将样本随机分组（n=8；四组），分别为 Crest 3D、Optic White、Hello（炭黑）和 Aim 作为对照组。在含有去离子水和牙膏的混合溶液中，以 150gf 进行 10,000x 的旋转刷洗，以确保均匀刷洗。在机械刷牙模拟前后，使用触针轮廓仪分别测量每个样本的表面粗糙度。使用双向方差分析和 SNK 对每种处理的数据进行独立比较，α<0.05 为显著性差异。
数据显示，TPH 对三种测试美白牙膏[Crest 3D、Optic White 和 Hello（炭黑）]的磨蚀性更敏感。Filtek 也对 Hello 的磨蚀性表现出显著的敏感性。Aim 显示出最小或最小程度的磨损。
TPH ST 复合材料对三种测试美白牙膏[Crest 3D、Optic White 和 Hello（炭黑）]的磨蚀性更敏感。Filtek 也对 Hello 的磨蚀性表现出显著的敏感性。除了支持 TPH 比 Filtek 更有效的临床数据外，临床医生还应告知患者所有美白牙膏的磨蚀能力，特别是基于炭黑的牙膏。
