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실험논문(원저논문)

경화방법이 치과용 경석고의 기계적 특성에 미치는 영향

원문정보

Influence of mechanical properties of ultra-dental stone on setting methods

임용운, 황성식, 김사학, 최재우, 정수하, 김시철

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

Purpose: The purpose of this study was to investigate the influence of mechanical properties of various ultra-dental stone by setting methods. Methods: 240 cylinder specimens(10 mm × 20 mm) were prepared from three ultra-dental stones(Gemma, Die keen and Fuji rock; n = 80) in accordance with the manufacturers' recommendations. Half of the specimens of each stone(n= 40) were dried in open air within a room temperature; the other half(n = 40) underwent in a silicone rubber mold in open air for 30 minutes and then were dried in a microwave oven for 10 minutes to 600W. Compressive strength(CS), compressive modulus(CM) and diametral tensile strength(DTS) conducted until fracture using Instron 5966 at each of the following periods: 1 and 24 hours from mixing. One-way analysis of variance and Scheffe's post hoc test were performed for statistical comparisons at a significance level of P<.05. Results: The CS and CM values in all dental stone indicated highest after 24h(54.25 MPa < ) than the values for specimens dried in microwave method . The DTS values revealed the highest microwave method. However, in 24h, FJ(Fu-ji rock) and GM(Gemma) had lower mechanical properties than air. Conclusion : Within the limitations of this study, CS did not influence by microwave method but DTS affected according to the setting.

목차

[Abstract]
 I. 서론
 II. 연구 방법
  1. 실험재료
  2. 실험방법 및 측정
  3. 통계 처리
 III. 결과
 IV. 고찰
 V. 결론
 REFERENCES

저자정보

  • 임용운 Yong-Woon Im. 경동대학교 치기공학과
  • 황성식 Seong-Sig Hwang. 경동대학교 치기공학과
  • 김사학 Sa-Hak Kim. 경동대학교 치기공학과
  • 최재우 Je-Woo Choi. 충북보건과학대학교 치기공과
  • 정수하 Su-ha Jeong. 충북보건과학대학교 치기공과
  • 김시철 Si-Chul Kim. 충북보건과학대학교 치기공과

참고문헌

자료제공 : 네이버학술정보

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