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完成一副全口义齿的排牙,一般需要1.5—2小时。令人烦恼的是,将近一半的时间用在烫刀和熔蜡上,效率很低。为此,近几年来已出现了电蜡刀的应用。从省时方面来说,电蜡刀无疑是可取的,但由于电热刀需要耗电,而且体积较大,不够灵便,故也有其不足之处。笔者曾设计一种酒精灯罩,其优点是:1.可用两把蜡刀交替加热,故不需等候烫刀;2.灯罩上方有熔蜡池,池内的熔蜡可以随取;3.风大或夏天使用电扇时可以防风,火焰集中,热量不散发。现介绍如下(见图): 灯罩由镀锌白铁皮制成(也可利用食品空铁听
To complete a full denture row teeth, generally takes 1.5-2 hours. Worryingly, nearly half of the time used in the hot knife and wax on the low efficiency. For this reason, the application of electric wax knife has appeared in recent years. In terms of time-saving, electric wax knife is undoubtedly desirable, but because electric knife needs power consumption, and the larger, not flexible, it also has its shortcomings. The author has designed an alcohol shade, its advantages are: 1. Alternate heating with two wax knife, it does not need to wait hot knife; 2. Shade above the wax pool, the pool of wax can take; Or use the fan in the summer when the wind, the flame concentration, heat is not emitted. Now introduced as follows (see photo): lampshade made of galvanized tin (also available food empty iron listen