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全口总义齿修复的固位效果、功能恢复与印模的准确程度有非常密切的关系。在临床上,常见全口总义齿因固位条件差,而影响修复效果。尤其是下颌总义齿,因接触面积小,加上牙槽嵴低平,口底软组织比较丰满,以及唇、颊、舌运动对义齿的影响,使之固位效果更差,因此,取得准确的印模尤为重要。本文就一次法取无牙列下颌印模,总结经验体会如下。1 印模的范围:印模范围的大小与基托面积的大小和义齿固位力的强弱成正相关关系。因此,对无牙列下颌印模的范围,应适当地扩大印模
Retentive denture retention effect, functional recovery and the accuracy of the impression has a very close relationship. In clinical practice, the common total denture due to poor retention conditions, which affect the repair effect. In particular, the mandibular total denture, due to the small contact area, with low alveolar crest, the soft bottom of the mouth is full, and lip, cheek, tongue movement on the denture, so that the retention effect is worse, so to obtain accurate Stamping is particularly important. This article on a law to take the dentition jaw impression, summed up the experience as follows. A range of stamping: the size of the impression range and the size of the base area denture retention force and the strength of a positive correlation. Therefore, the scope of the dentition mandibular impression should be appropriately expanded impression