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叉式义齿是利用基托上设计的一对叉形物,伸展到由外科手术而形成,位于梨状孔区的盲袋内,从而达到增加固位力的义齿类型。它对于上颌骨牙槽嵴严重缺失,作上半口义齿固位困难的病例十分有效。叉式义齿也适用于不宜作常规牙槽嵴增高术的病例。就一般而言,扩大上颌牙槽嵴,病人不仅要经受多次外科手术,而且费用高,远期效果差(发生植骨后吸收),相比之下,叉式义齿则具有一定的临床实用性。作者给一名51岁的男性病人作了叉式托牙。患者来诊时所戴的上半口托牙固位差,说话时发生脱落。1977年诊断他患有原因不
The fork denture is a pair of forks designed on the base, which are extended to the blind pocket formed by surgery and located in the pear-shaped hole area, so as to achieve the denture type with increased retention force. It is a serious loss of the maxillary alveolar ridge, for the upper half denture retention difficult cases are very effective. Fork dentures are also suitable for cases not suitable for conventional alveolar ridge augmentation. In general, the expansion of the maxillary alveolar ridge, the patient not only to undergo multiple surgeries, but also high cost, long-term effect is poor (after bone graft occurs), compared with the fork denture has a certain clinical practice Sex. The author made a forklift to a 51-year-old male patient. Patients visit the first half of the wear denture retention is poor, when the words fall off. He did not diagnose the cause in 1977