临床常见仅存几个剩余牙,余牙不能负荷卡环的力量,或剩余牙虽稍多但松动时,局部义齿的设计较困难。如仅存切牙或数个松动后牙时,以往多主张拔除剩余牙全口义齿修复。但是不少病例不愿拔牙或健康等原因不能拔牙时,一般的局部义齿修复往往因固位差而不能使用。因此如何为这些病例设计既能保护剩余 Common clinical remaining few remaining teeth, residual teeth can not load the force ring, or the remaining teeth, although slightly more loose, the design of partial dentures more difficult. Such as the only incisors or loose teeth after more than in the past advocate removal of the remaining teeth complete denture repair. However, many cases do not want to tooth extraction or health reasons can not tooth extraction, the general partial denture repair often due to poor retention and can not be used. So how to design for these cases can protect the remaining