Lim Tong Wah, Burrow Michael Francis, McGrath Colman
Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR.
Division of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR.
J Dent. 2024 Sep;148:105215. doi: 10.1016/j.jdent.2024.105215. Epub 2024 Jun 27.
To compare the efficacy of test (ultrasonic cleaner combined with immersion in denture cleanser solution) and control (immersion in denture cleanser solution followed by conventional brushing) denture cleaning interventions in enhancing denture cleanliness, reducing denture stomatitis, and improving patient satisfaction.
A prospective, single-blind, block-randomised, two-period crossover, superiority-controlled clinical trial was conducted of a 3-month intervention. The study design included a pre-intervention period (2 weeks), intervention period one (3 months), washout period (2 weeks), and intervention period two (3 months). A total of 56 community-dwelling elders were block-randomized into either sequence Test/Control or sequence Control/Test. The intervention, period, and carryover effects for the changes in the cleanliness of extensive partial and complete acrylic dentures, denture stomatitis, and changes in patient satisfaction were estimated using Generalized Estimating Equations models.
Percentage plaque area coverage, patient satisfaction, and denture stomatitis were significantly improved for both intervention and control arms after 3 months (P < 0.05). The intervention arm was found to significantly improve denture cleanliness (P < 0.001) and patient satisfaction (P = 0.002) more than the control arm. Denture-wearing habits and denture age were also significantly associated with the changes in denture plaque coverage (P < 0.05). However, the effect of the test intervention on denture stomatitis was not significantly different compared to the control arm (P = 0.284).
This study revealed that the test intervention group was significantly more effective than the control group in improving denture cleanliness and patient satisfaction among community-dwelling elders. This test intervention is recommended for maintaining optimum denture hygiene among older adults.
Removable dentures can harbor opportunistic pathogens, emphasizing the need for effective denture hygiene intervention using ultrasonic cleaner combined with immersion in denture cleanser solution to eliminate denture biofilm in community-dwelling elders.
比较试验组（超声波清洁器结合浸泡在义齿清洁液中）和对照组（浸泡在义齿清洁液中后进行传统刷牙）义齿清洁干预措施在提高义齿清洁度、减少义齿性口炎以及改善患者满意度方面的效果。
进行了一项为期3个月干预的前瞻性、单盲、区组随机、两阶段交叉、优效性对照临床试验。研究设计包括干预前期（2周）、干预期一（3个月）、洗脱期（2周）和干预期二（3个月）。总共56名社区居住老年人被区组随机分为试验/对照顺序组或对照/试验顺序组。使用广义估计方程模型估计广泛局部及全口丙烯酸义齿清洁度变化、义齿性口炎以及患者满意度变化的干预、时期和遗留效应。
3个月后，试验组和对照组的菌斑面积覆盖率百分比、患者满意度和义齿性口炎均有显著改善（P < 0.05）。发现试验组在提高义齿清洁度（P < 0.001）和患者满意度（P = 0.002）方面比对照组有更显著的改善。义齿佩戴习惯和义齿使用年限也与义齿菌斑覆盖率的变化显著相关（P < 0.05）。然而，试验干预对义齿性口炎的效果与对照组相比无显著差异（P = 0.284）。
本研究表明，试验干预组在提高社区居住老年人义齿清洁度和患者满意度方面比对照组显著更有效。推荐这种试验干预措施以维持老年人的最佳义齿卫生。
可摘义齿可能藏有机会致病菌，强调需要采用超声波清洁器结合浸泡在义齿清洁液中的有效义齿卫生干预措施来消除社区居住老年人义齿上的生物膜。
