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(四)设计内容 1.基托轮廓。在正常情况下,尽可能大地覆盖无牙颌牙槽脊是合适的,以致有最大面积能够抵抗垂直和水平向力。 2.对基托的支持。通常有自然牙、粘膜和两者混合支持,可能的话,应取得更多的自然牙支持,以致分散(牙合)力,使个别牙齿忍受(牙合)力减少最低限度。一般粘膜提供的支持,下颌骨只有牙槽脊和颊架区,而上颌骨还有很宽大的上腭区,因此上颌骨的粘膜支持比下颌骨更适宜。事实上,粘膜支持的义齿,是不可能
(D) Design Content 1. The base contour. Under normal circumstances, it is appropriate to cover as much as possible the edentulous alveolar ridge so that the largest area is able to resist vertical and horizontal forces. 2. Support to the base. There are usually natural teeth, mucous membranes, and a mixture of both. Where possible, more natural tooth support should be achieved, resulting in a decentralized occlusion force that minimizes the individual tooth endurance. General mucosal support provided, the only mandibular alveolar ridge and the buccal region, while the maxilla there is a wide palate, so the maxillary mucosal support is more appropriate than the mandible. In fact, mucosal-supported dentures are not possible