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上前牙缺失的深覆患者，特别是Ⅲ度深覆，因下前牙咬于上前牙腭侧软组织上，若按常规方法设计制作义齿，跨侧基托很难安放，一般均采用磨短下前牙，制作金属基托，或先作压缩性义齿，再作永久性义齿。我们采用将基托安放于唇侧，卡环放置于跨侧的修复方法，共试用50例患者，效
The deep covered patients with missing anterior teeth, especially the deep third degree, because the lower anterior teeth bite in the soft tissue of the anterior palatal palate, if designed by conventional dentures, cross-side of the base is difficult to place, are generally used grinding Short anterior teeth, the production of metal base, or first as a compressive denture, and then permanent denture. We use the base will be placed on the labial side of the ring, snap ring placed on the cross-side repair method, a total of 50 patients trial, the effect