Silicone Index Tooth Tray를 이용한 인상체의 체적안정성에 대한 연구

이규영; 이근우; 심준성; 정승미; 최병갑

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Silicone Index Tooth Tray를 이용한 인상체의 체적안정성에 대한 연구
Dimensional stability of impression body using silicone index tooth tray impression system

대한치과보철학회지 2005년 43권 5호 p.622 ~ 632

이규영, 이근우, 심준성, 정승미, 최병갑,

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이규영 ( Lee Kyu-Young ) - 연세대학교 원주의과대학 치과학교실
이근우 ( Lee Keun-Woo ) - 연세대학교 치과대학 치과보철학교실
심준성 ( Shim June-Sung ) - 연세대학교 치과대학 치과보철학교실
정승미 ( Jeong Seung-Mi ) - 연세대학교 원주의과대학 치과학교실
최병갑 ( Choi Byeong-Gap ) - 연세대학교 치과대학 치과보철학교실

KMID : 0362420050430050622

Abstract

Statement of problem: Silicone Index Tooth Tray impression system which does not use gingicord has a shortcoming. It takes time to remove internal wall of Silicone Index Tooth Tray for space of wash impression material.

Purpose: This study was to evaluate whether providing certain space to impression body can prevent from doing complicated laboratory work.

Materials & Methods: After mounting metal dies with shoulder and chamfer margins arbiturarily, SITT was produced using Blu-mousse(R). In one experimental group, wash impression was taken using Fit-tester(R) without removing interior surface of SITT and in the other group, wash impression was taken using Fit-tester(R) providing 0.5mm space in the SITT and then compared the differences in two groups.

Results: 1. There was no significant difference between a group which did not allow space and a group which granted equal 0.5mm space. 2. There was no significant difference between gingival diameter, occlusal diameter of metal die that has shoulder margin and gingival diameter, occlusal diameter of metal die that has chamfer margin. 3. There was no significant difference between a group which did not take pick-up impression and a group which took pick-up impression through relining method using SITT. 4. There was no significant difference between a group that poured immediately after taking primary impression and a group that poured after removing poured stone die.

Conclusion: When taking an impression of an abutment using SITT impression system, it is considered to obtain clinically identical results between a group that did not grant a 0.5mm space within SITT for wash impression and a group which invest a space. Furthermore, it is considered possible to produce an individual die through secondary pouring.