Study on evaluate of the accuracy for injection type alginate impression materials by means of fine line reproducibility

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  • インジェクションタイプアルジネート印象材の 細部再現性評価

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Abstract

<p>The aim of this study was to evaluate by fine line reproducibility test the reproducibility of fine details in a combined impression with new injection-type alginate impression material compared with that of agar impression. The dental cast was made with the impression, and the surface roughness of the cast was measured. The results suggest that, while hard plaster ( α -gypsum) must be used in case the combined impression was taken with agar and alginate, dental super hard stone (modified α-gypsum) can be used in case the combined impression was taken with new injection alginate and alginate, allowing more accurate models to be made. </p>

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