许多戴下颌总义齿的患者都存在着固位不良,其原因除修复水平外,更主要的是下颌牙槽嵴本身的条件。因此对下颌牙槽嵴条件较差的患者保存残留牙齿,在完善的根管治疗基础上将根帽附着体固定在牙根上,增加义齿的支持和稳定作用,制成根帽附着体下颌总义齿。该修复方法自60年代在发达国家已逐渐应用,但在国内尚难推广普及。笔者于1995年9月至1997年9月采用国产根帽附着体预 Many patients with mandibular dentures exist poor retention, the reason for the repair level, the more important is the condition of mandibular alveolar ridge itself. Therefore, patients with poor conditions of the mandibular alveolar ridge to save the residual teeth, root canal on the basis of a sound root canada goose jakke, fixation attached to the root, increase the support and stability of the denture to make root cap attachment mandibular total denture . The repair method has been gradually applied in developed countries since the 1960s, but it is hard to be popularized in China. The author in September 1995 to September 1997 using domestic root cap attachment body