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Effect of Glass Filler Content on Hydrophilic Addition Silicone Impression Materials in Dentistry

Authors
 J.K. Kang  ;  Yong Keun Lee  ;  Kyoung Nam Kim  ;  Kwang Mahn Kim 
Citation
 Key Engineering Materials, Vol.284-286 : 909-912, 2005 
Journal Title
Key Engineering Materials
ISSN
 1013-9826 
Issue Date
2005
MeSH
Addition Silicone ; Dental Casting ; Dental Impression Material ; Glass filler
Keywords
Addition Silicone ; Dental Casting ; Dental Impression Material ; Glass filler
Abstract
Dental impression materials are used to register or reproduce the form and relationship of the teeth and oral tissues. They should not be torn when removing from the wet mouth after setting. Nowadays, silica is widely used as filler to overcome the low mechanical strength of the dental impression materials. The purpose of this study was to synthesize high strength glass in the system of MgO-CaO-Al2O3-SiO2 and investigate its usefulness according to ISO standard after mixing with addition silicone. Commercial products, Contrast, Examix, Express, and Perfect-F were selected as control group. When the prepared glass filler was introduced in addition silicone impression material, tear strength was drastically increased significantly than that of the control group, keeping the consistency. All experimental groups showed higher tear stength than that of control groups. As the amount of filler content increases, tear strength was increased. Strain in compression, recovery from deformation, and linear dimensional change were satisfied the ISO standard either all the experimental or control groups. Therefore, calcium-substituted magnesium aluminosilicate glass in the system of 12.5MgO-17.5CaO-20Al2O3-50SiO2 is expected the useful filler in the light body of addition silicone impression materials.
Full Text
http://www.scientific.net/KEM.284-286.909
DOI
10.4028/www.scientific.net/KEM.284-286.909
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyoung Nam(김경남)
Kim, Kwang Mahn(김광만) ORCID logo https://orcid.org/0000-0002-5235-0294
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/114833
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