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KMID : 1036420080010010022
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대한치의학회 영문학회지
2008 Volume.1 No. 1 p.22 ~ p.27
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DIMENSIONAL STABILITY OF IMPRESSION BODY USING THE SILICONE INDEX TOOTH TRAY IMPRESSION SYSTEM
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Lee Kyu-Young
Jeong Seung-Mi
Shim June-Sung
Choi Byeong-Gap
Lee Keun-Woo
Kim Han-Sung
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Abstract
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Purpose : This study sought to evaluate the dimensional stability of the SITT (Silicone Index Tooth Tray) impression system and to determine whether providing space for wash impression material in SITT is a necessary step in obtaining accurate prostheses.
Materials and methods : After mounting metal dies with shoulder and chamfer margins arbitrarily, SITT was fabricated using Blu-mousse. To test the dimensional stability of the SITT system for margin design, the shoulder margin and chamfer margin were evaluated. Furthermore, to test the effect of space for wash impression material, 0.5mm space in SITT and zero space in SITT were statistically compared.
Results : 1. There was no significant difference between the group with shoulder margin and that with chamfer margin. 2. There was no significant difference between the group with 0.5mm space and that with zero space for wash impression material.
Conclusions : Considering the limitations of this study, the dimensional stability of the SITT system did not interfere with the margin design. Space for the wash impression material was also unnecessary.
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