Begley P B, Basker R M, Tomka J G, East G C
Division of Restorative Dentistry, Leeds Dental Institute, University of Leeds, West Yorkshire, UK.
Clin Mater. 1994;16(3):161-6. doi: 10.1016/0267-6605(94)90112-0.
The use of penetrometry for the assessment of materials employed for soft earmoulds is investigated. Selected test conditions are used for the characterisation of 10 materials of five types (cold-cured methacrylate, heat-cured methacrylate, heat-cured silicone, polyvinyl chloride co-polymer and polyethylene copolymer) used in clinical practice. The results are compared with the outcome of subjective assessments surveyed for four representative materials. The effect of ageing is assessed for a heat-cured silicone (Molloplast B) and a heat-cured methacrylate (Coe Super-Soft).
本文研究了使用针入度计来评估用于软耳模的材料。选用特定的测试条件对临床实践中使用的五种类型的10种材料（冷固化甲基丙烯酸酯、热固化甲基丙烯酸酯、热固化硅酮、聚氯乙烯共聚物和聚乙烯共聚物）进行表征。将结果与对四种代表性材料进行的主观评估结果进行比较。评估了一种热固化硅酮（Molloplast B）和一种热固化甲基丙烯酸酯（Coe Super-Soft）的老化效果。
