Yankell S L, Shi X, Emling R C, Harris M
University of Pennsylvania School of Dental Medicine, Philadelphia, USA.
J Clin Dent. 1998;9(1):1-4.
A new laboratory procedure has been developed to evaluate subgingival access efficacy (SAE) of toothbrush bristles using clinical toothbrushing motions and pressure-sensitive paper placed around simulated tooth shapes and gingival tissues under wet brushing conditions. Subgingival access is determined by measuring the maximum distance of the bristle marks from the brushing stroke on the pressure-sensitive paper under the simulated gingival tissues. Four manual toothbrushes (Reach Tooth & Gum Care, Colgate Total Design, Mentadent and Oral-B Advantage) with differing designs, bristle feathering or outside row dimensions were evaluated. Each toothbrush design was evaluated for 28 assessments on anterior and posterior tooth shapes. On overall assessments for subgingival access, the Reach Tooth & Gum Care toothbrush was significantly (p < 0.05-0.001) superior to the other three commercially available toothbrushes tested.
已开发出一种新的实验室程序，用于在湿刷条件下，使用临床刷牙动作以及放置在模拟牙齿形状和牙龈组织周围的压敏纸，评估牙刷刷毛的龈下进入效果（SAE）。龈下进入情况通过测量模拟牙龈组织下方压敏纸上刷毛痕迹距刷牙行程的最大距离来确定。对四种设计、刷毛羽状物或外侧排尺寸不同的手动牙刷（伸齿护龈牙刷、高露洁全效设计牙刷、门达顿牙刷和欧乐-B优势牙刷）进行了评估。每种牙刷设计针对前后牙形状进行了28次评估。在龈下进入的总体评估中，伸齿护龈牙刷显著优于其他三种受试的市售牙刷（p < 0.05 - 0.001）。
