The real cause for the second molars malocclusion is the crowding and it happens in the posterior region of dentitions. 从本质上讲,第二磨牙错牙合是拥挤的表现,主要在磨牙区。
Results After temporary treatment by splints of removable denture for3 to6 months, the dentitions were reconstructed with removable partial denture or fixed denture. 结果采用垫式可摘义齿过渡性修复3~6个月后,酌情采用固定义齿或可摘局部义齿修复。
When food chip was masticated between dentitions, the displacement of abutments was measured by a high sensitive laser transferring detector, and then the data was statistically analyzed. 当咬合时,用高精度激光位移测量仪测得其基牙各自的位移量,进行分析比较。
An eight-year longitudinal study for caries status on primary and permanent dentitions in Beijing children 北京儿童乳恒牙患龋状况八年纵向研究
Methods: 9 aged patients with defected dentitions were treated by SDA and their wearing period were from 3 to 26 months. 方法:对象为采用SDA治疗法修复的9例牙列缺损的中老年患者,戴牙时间范围为3~26个月。
Objective: To study the personal feelings of aged patients with defected dentitions after treated by shortened dental arch ( SDA) using questionnaires. 目的:对中老年牙列缺损患者经SDA治疗法修复后的主观感觉进行回访调查。
Methods Twenty patients with different dentitions were included in the study. 方法选择不同牙列期的患者20例,常规取印模并灌制成两副牙颌模型,组成为两个配对的样本;