Factors Affecting Dimensional Instability of Alginate Impressions during Immersion in the Fixing and Disinfectant Solutions

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概要

• 論文の詳細を見る

• To clarify the factors determining the dimensional stability of alginate impressions during immersion in disinfectant and fixing solution, the weight change of impressions in solutions of glutaraldehyde (GA), NaClO, Na_2SO_4, K_2SO_4, CaCl_2 and ZnSO_4 was measured. In the nonelectrolytic solution, GA, the weight decreased in proportion to concentration, possibly due to the gradient of osmotic pressure between the impression and solution. In monovalent metallic salt solutions the weight change decreased with increased concentration. Especially at lower concentrations the rate of weight loss was high. A chemical action of the solution might also be involved, in addition to the osmotic pressure difference. The weight loss in divalent metallic salt solutions was greater than in monovalent solutions, implicating crosslinking reactions between the impression and solution.

• 日本歯科理工学会の論文

著者

• Ichimaru Toshio

  Department Of Dental Materials Science And Technology Iwate Medical University School Of Dentistry

• Araki Yoshima

  Department Of Dental Materials Science And Technology Iwate Medical University School Of Dentistry

• Saito Setsuo

  Department Of Dental Materials Science And Technology Iwate Medical University School Of Dentistry

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