Automatic Oral cleaning Apparatus and Clinical Evaluation

研制了一种用于住院残疾患者的自动口腔清洁仪，并对其临床应用进行了探讨。该装置由气动振动牙刷、口腔冲洗器和吸引器组成，其由附着在移动体侧面的双关节臂支撑。两个科利斯曲线刷头背靠背相连，作为该装置的刷头。以12名牙科学生和17名进行性肌肉萎缩症住院患者为研究对象。所采用的斑块评分指标是对Harrap和Cohen方法的改进。学生组实验累积斑块指数为2.1，使用3分钟后降至1.3。患者组不采用实验性斑块积累法。患者组初始斑块评分为3.8分，使用仪器后降至2.1分。牙齿近端表面和排列异常的牙齿是牙菌斑清除困难的部位。

An automatic oral cleaning apparatus for hospitalized handicapped patients was developed and its clinical application was investigated. The apparatus consisted of an air-driven vibratory toothbrush, an oral irrigator and an aspirator which were supported by a two-jointed arm attached to the side of the mobile body. Two Collis' curve brush tip were connected, back to back, as a brush for this apparatus.Twelve dental students and 17 hospitalized patients of progressive muscular dystrophy were the subjects of this investigation. The plaque score index used was modigication of Harrap's and Cohen's method. The index of experimentally accumulated plaque was 2.1 in the student group and decreased to 1.3 after 3 minutes use of this apparatus. Experimental accumulation of plaque was not adopted on the patient group. The initial plaque score of 3.8 in patient group decreased to 2.1 after the use of the apparatus.The proximal surface of teeth and abnormal arrangement teeth were the most difficult sites to remove plaque by the apparatus.