【摘要】 观测了种植体愈合基台表面菌斑牙石的堆积情况，并比较塑料洁治器，单束牙刷，磨光橡皮杯和碳纤头超声洁治器等工具去除菌斑牙石的效果。发现所有基台都有菌斑牙石分布，面积占5.1％－967％，均值为48.0％。基台与植入体的接缝处也有大量菌斑。4种方法去除菌斑牙石都有效，碳纤头超声洁治器所需时间最少（P＜0.01），去除牙石也最彻底。其它方法处理后基台表面仍可残存牙石。结论：种植体需定期清除菌斑牙石，碳纤头超声洁治器是最适用的专业工具。更多还原

【Abstract】 The purpose of is study was 2-fold to: 1) observe plaque accumulation on tianium implant abutment in human beings, and 2) evaluate the effectiveness and efficiency of various prophylactic treatments for the removal plaque and calculus. In part I, each of 14 healing abutments relieved from patients was divided into 6 experimental surfaces, and processed for SEM-IPS. A digitizer and software program were used to determine the percent of sufface area covered by plague. All abutment surfaces collected plaque. The area of plaque ranged from 5.1%-96.7%, mean 48.0%. There were more quantities of plaque accumulation on buccal sulfaces than that on lingual, but the difference was no significance (P>0.05). Abundant bacteria were seen at the fissure between abutment and fixture. In part Ⅱ, a total 84 experiment surfaces were classified into 4 groups with equal average plaque amounts, and treated with plastic scaler, rubber cup polishing, toothbrush and carbon fiber tip ultrasonic, respectively .The time consumed in cleaning plaque was recorded, and the number of experimental surfaces with residual calculus was calculated. The results showed that all 4 methods were effective on plaque and calculus removing. Compared with other heatment groups, the carbon fiber tip group took a significantly less time and removed hard debris more completely (P<0.01). It is concluded that the maintenance and prophylaxis of implant is necessary for long-term success. The carbon fiber tip ultrasonic was recommended as professional modality, and toothbrush as home care device.更多还原