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광중합형 구치부 수복재료의 중합 수축력과 교두 변위의 상관관계

Other Titles
 Measurements of shrinkage stress and reduction of inter-cuspal distance in maxillary premolars resulting from polymerization of composites and compomers 
Authors
 이순영  ;  박성호 
Citation
 Journal of Korean Academy of Operative Dentistry (대한치과보존학회지), Vol.29(4) : 346-352, 2004 
Journal Title
 Journal of Korean Academy of Operative Dentistry (대한치과보존학회지) 
ISSN
 1225-0864 
Issue Date
2004
Keywords
Polymerization shrinkage stress ; Cuspal deflection ; Composite resin ; Compomer
Abstract
The purpose of present study was to evaluate the polymerization shrinkage stress and cuspal deflection in maxillary premolars resulting from polymerization shrinkage of composites and compomers. Composites and compomers which were used in this study were as follows: Dyract AP, Z100, Surefil, Pyramid, Synergy Compact, Heliomolar, Heliomolar HB, and Compoglass F. For measuring of polymerization shrinkage stress, Stress measuring machine (R&B, Daejon, Korea) was used. One-way ANOVA analysis with Duncan's multiple comparison test were used to determine significant differences between the materials. For measuring of cuspal deflection of tooth, MOD cavities were prepared in 10 extracted maxillary premolars. And reduction of intercuspal distance was measured by strain measuring machine (R&B, Daejon, Korea) One-way ANOVA analysis with Turkey test were used to determine significant differences between the materials. Polymerization shrinkage stress is 『Heliomolar, Z100, Pyramid < Synergy Compact Compoglass F < Dyract AP < Heliomolr HB, surefil』 (P < 0.05). And cuspal delfelction is 『Z100, Heliomolar, Heliomolar HB, Synergy Compact Surefil, < Compoglass F < Pyramid, Dyract AP』 (P < 0.05). Measurements of ploymerization shrinkage stress and those of cuspal deflection of the teeth was different. There is no correlation between polymerization shrinkage stress and cuspal deflection of the teeth (p > 0.05).
Files in This Item:
T200401621.pdf Download
DOI
10.5395/JKACD.2004.29.4.346
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Conservative Dentistry (보존과학교실) > 1. Journal Papers
Yonsei Authors
Park, Sung Ho(박성호) ORCID logo https://orcid.org/0000-0003-2171-235X
Lee, Soon Young(이순영)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/112726
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