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여러 가지 Die spacing material의 물리적 성질에 대한 연구

Other Titles
 A STUDY ON THE PHYSICAL CHARACTERISTICS OF THE THREE COMMONLY USED DIE SPACING MATERIALS 
Authors
 문홍석  ;  김종진 
Citation
 Journal of Korean Academy of Prosthodontics (대한치과보철학회지), Vol.37(5) : 640-650, 1999 
Journal Title
 Journal of Korean Academy of Prosthodontics (대한치과보철학회지) 
ISSN
 0301-2875 
Issue Date
1999
Keywords
Die spacer ; Die spacing material ; internal relief ; seating discrepancy
Abstract
As an optimal quality of the restorations, there should be a least amount of seating discrepancy between the casting and abutment teeth. However, high viscosity of the cementing medium and its resulting thickness may prevent complete seating of the restoration. The use of die spacing material provides adequate internal relief for the cementing medium. The purpose of this study is to compare the thickness of three commonly used die spacing materials. Materials and Methods: Stone plates were fabricated and divided into 12 sections to be painted with die spacers. Tru-Fit, Whip-Mix and Belle de St. Claire die spacer which are commonly used in dental practice were tested in this study. Each die spacers were painted layer by layer according to the manufacturer’s recommendation. The average thickness of each die spacers were measured with light microscope(×100) and compared between them. Results and Conclusions: A silver-colored Tru-Fit die spacer has the lowest value of thickness without statistical significance comparing with a gold-colored Tru-Fit die spacer and a gray layer of Whip-Mix die spacer has the highest value of thickness without any statistical significance comparing with Belle de St. Claire die spacer. Three and four layers of Tru-Fit die spacer and two layers of Whip-Mix and Belle de St. Claire die spacers seem to be in the acceptable range of thickness of 25 to 45μm for optimal seating of the restorations. The standard experimental design and method should be further evaluated for more consistent and objective results.
Files in This Item:
T199901911.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Moon, Hong Seok(문홍석) ORCID logo https://orcid.org/0000-0001-8118-8145
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/174080
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