The effect of disinfectants on the accuracy, quality and surface structure of impression materials and gypsum casts: A comparative study using light microscopy, scanning electron microscopy and micro computed tomography.

• 影响指数: 2.418
• 发表时间: Jun 2020 5
• 来源期刊: Dent Mater J
• DOI: 10.4012/dmj.2019-065
• PMID: 31827058
• 文章类型: Journal Article
• 中科院分区: Q3
• 方向: 医学
• 作者列表: Vrbova R,Bradna P,Bartos M,Roubickova A

关键词: Dental impression material; Detail reproduction; Dimensional accuracy; Disinfectant; Surface and subsurface morphology

Mesh: Calcium Sulfate; Dental Disinfectants; Dental Impression Materials; Disinfectants; Materials Testing; Microscopy, Electron, Scanning; Models, Dental; Surface Properties; X-Ray Microtomography

Abstract

The aim of this study was to compare the effect of several commercially available disinfectants on the accuracy of various types of impression materials and their compatibility with gypsum including surface quality and structure evaluation. Four alginate and three elastomeric impression materials in combination with disinfectants Aseptoprint Liquid, Zeta 7 solution, Silosept and Dentaclean Form were tested. The dimensional changes, detail reproduction, the compatibility with gypsum and surface/subsurface morphology were evaluated using light microscopy, scanning electron microscopy and micro computed tomography. Two alginate materials disinfected in Dentaclean Form exhibited the most significant differences (p<0.0001). The loss of detail on some alginate impressions in combination with this disinfectant including deterioration and change of morphology of gypsum surfaces was observed. Porosity in subsurface area and exposed large particles were detected. It was confirmed that the desired properties of impressions may be negatively affected in combination with some disinfectants.