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我们用锡锑合金代替塑料,修复缺失的牙齿,效果较好。适用于一个双尖牙或一个磨牙缺失,而缺隙变小,但能容纳卡环的体部。重度磨耗牙冠变短,不愿意接受固定义齿修复所致的去髓术者。作法:基牙预备与制取印模同可摘义齿。在石膏代型缺隙龈向处均匀刮除1mm厚度,涂分离剂。常法设计与弯制卡环,用蜡在缺隙处将卡环体部固定在代型上,缺隙处用蜡根据咬合情况雕出蜡牙;牙槽嵴有吸收者,应基托与蜡牙一同雕出,以便整体铸造。在蜡牙的颊或舌侧面作铸道针。常法包埋,去蜡。
We use tin antimony alloy instead of plastic, repair the missing teeth, the better. For a double canine or a molar missing, but the gap smaller, but can accommodate the body of the snap ring. Severe wear crowns shorter, do not want to receive fixed denture caused by the removal of those who have surgery. Practice: Preparation and preparation of abutments can be removable denture. Gypsum in the gypsum gap gingival uniform scraping 1mm thickness, coated with a release agent. Often design and bending ring system, with the wax in the gap will snap ring body fixed on behalf of the type, the gap with wax according to the occlusion of wax carving; alveolar ridges have absorbers, should base and Wax teeth carved out together for the overall casting. In the wax on the cheek or lingual side of the casting needle. Often buried, to the wax.