治疗慢性边缘性牙周炎时,常因器械不易达到深牙周袋底,给龈下刮治带来困难。普通超声波洁牙器工作头难以进入牙周袋内。为了去除深牙周袋底的牙垢、牙石,有时不得不做外科手术,手术常给患者带来痛苦和负担,也可造成牙槽骨吸收。为了解决这一问题,作者将超声波洁牙器工作头改良为牙周探针形,用这种洁牙器去除深牙周袋内的牙垢、牙石的实验表明效果满意。材料与方法 1.实验材料:选择既往未做 Treatment of chronic marginal periodontitis, often difficult to reach the deep periodontal pocket because of instruments, to the subgingival curettage difficulties. Ordinary ultrasonic scaler work hard to enter the periodontal pocket. In order to remove the deep periodontal pocket of tartar, tartar, and sometimes have to do surgery, surgery often gives patients pain and burden, can also cause alveolar bone absorption. In order to solve this problem, the author modified the working head of ultrasonic cleaner to periodontal probe shape, and used this kind of cleaning device to remove the tartar in the deep periodontal pocket. Experiments with calculus showed satisfactory results. Materials and methods 1. Experimental materials: choose not done before