Department of Operative and Prosthetic Dentistry, Medical University of Innsbruck, Innsbruck, Austria.
Department of Medical Statistics, Informatics and Health Economics, Medical University of Innsbruck, Innsbruck, Austria.
J Clin Periodontol. 2020 Jan;47(1):30-35. doi: 10.1111/jcpe.13210. Epub 2019 Nov 3.
To compare the cleansing efficacy of waist-shaped versus cylindric inter-dental brushes in patients receiving supportive periodontal therapy.
After sample size estimation, 20 periodontal maintenance patients diagnosed with periodontitis stage 3 were recruited. Brushing efficacy of waist-shaped and cylindric inter-dental brushes was evaluated in a randomized-controlled, examiner-blinded, two-period crossover study by assessment of the Turesky modification of Quigley-Hein plaque index (T-QHI) and the papillary bleeding index (PBI) at four sites per tooth.
Seventeen probands with 1,474 tooth sites finished the study. At baseline, median of overall T-QHI scores was 1.4 (interquartile range 1.38-1.92). After 1 month, T-QHI for waist-shaped inter-dental brushes was 1.24 (1.03-1.52); in 15 individuals, T-QHI 0 was the grade most often measured. T-QHI for cylindric brushes was 1.71 (1.18-2.29; p = .042), with T-QHI 0 being the grade most often measured only in seven individuals. The odds ratio for establishing plaque-free inter-dental sites with waist-shaped relative to cylindric brushes was 1.8 [95% CI 1.6-1.9] (p < .001; logistic regression analysis). There were no statistically significant differences between PBI levels of waist-shaped and cylindric brushes.
This study has demonstrated the superiority in cleansing efficacy of waist-shaped over cylindric inter-dental brushes in individuals receiving supportive periodontal treatment.
比较支持性牙周治疗患者使用腰形与圆柱形邻间刷的清洁效果。
经过样本量估算，纳入 20 名诊断为牙周炎 3 期的牙周维护患者。采用随机对照、 examiner-blinded、两周期交叉研究，通过评估每个牙的四个位点的 Turesky 改良 Quigley-Hein 菌斑指数（T-QHI）和乳头出血指数（PBI），评估腰形和圆柱形邻间刷的刷牙效果。
17 名受试者共 1474 个牙位完成了研究。基线时，总体 T-QHI 评分中位数为 1.4（四分位距 1.38-1.92）。1 个月后，腰形邻间刷的 T-QHI 为 1.24（1.03-1.52）；在 15 名个体中，T-QHI 0 是最常测量的等级。圆柱形刷的 T-QHI 为 1.71（1.18-2.29；p=0.042），只有 7 名个体最常测量到 T-QHI 0。与圆柱形刷相比，腰形刷在建立无菌斑邻间区的优势比为 1.8 [95% CI 1.6-1.9]（p<0.001；logistic 回归分析）。腰形和圆柱形邻间刷的 PBI 水平之间无统计学差异。
本研究表明，在接受支持性牙周治疗的患者中，腰形邻间刷在清洁效果方面优于圆柱形邻间刷。
