The plaster model is used to make the bridge in my dental laboratory.

石膏模型是用来在我的牙料制造室里做齿桥用的。

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Copied the same metal model and 10 impressions were taken in the same way. They were poured in dental stone, comparing the length divergence between dental stone plaster with the impression.

再以同一金属模型为母模，应用玉洁新消毒液调和藻酸盐印模材料制取10个印模，以超硬石膏灌模，比较石膏模型与母模之间指标线段长度差异。

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Inventor, Hideki Watanabe, created the prototype using dental plaster from his practice that he used to line the inside surface of a metal pot in a spiral design.

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