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도말층 존재 유무에 따른 One-step 접착 시스템의 미세인장결합강도

MICROTENSILE BONDING OF ONE-STEP ADHESIVES TO SHEARED AND NON-SHEARED DENTIN

  • 송용범 (전북대학교 치과대학 보존학교실 및 구강생체과학연구소) ;
  • 진정희 (전북대학교 치과대학 보존학교실 및 구강생체과학연구소) ;
  • 이세준 (전북대학교 치과대학 보존학교실 및 구강생체과학연구소) ;
  • 이광원 (전북대학교 치과대학 보존학교실 및 구강생체과학연구소)
  • Song, Yong-Beom (Department of Conservative Dentistry & Institute for Oral Bioscience, College of Dentistry, Chonbuk National University) ;
  • Jin, Jeong-Hee (Department of Conservative Dentistry & Institute for Oral Bioscience, College of Dentistry, Chonbuk National University) ;
  • Lee, Se-Joon (Department of Conservative Dentistry & Institute for Oral Bioscience, College of Dentistry, Chonbuk National University) ;
  • Lee, Kwang-Won (Department of Conservative Dentistry & Institute for Oral Bioscience, College of Dentistry, Chonbuk National University)
  • 발행 : 2002.05.01

초록

The purposes of this study were to evaluate the microtensile bond strength of one-step adhesives accord ing to various dentin surface treatments and to observe the interface between resin(Z-100$^{TM}$) and dentin under SEM. In this study forty-five non-caries extracted human molars and three adhesive systems were used ; AlI-Bond 2(AB), One-Up Bond F(OU), AQ-Bond(AQ). ; In Group 1, 2, 3, AB was used and tooth surfaces were treated by smearing(S), ultrasonic cleansing(US), etching(E) respectively. In Group 4. 5, 6, One-Up Bond F was used and tooth surfaces were also treated as the same way above. In Groups 7, 8, 9, AQ Bond was used and tooth surfaces wet$.$e treated as the same way. Each specimen was prepared for microtensile bond testing, and were stored for 24hrs in 37$^{\circ}C$ distilled water. After that, microtensile bond strength for each specimen was measured. Specimens were fabricated to examine the failure patterns of interface between resin and dentin and observed under the SEM. The results were as follows ; 1. The results(mean$\pm$SD) of microtensile test were group 1, 25.69$\pm$4.31MPa; group 2, 40.93$\pm$10.94MPa; group 3, 47.65$\pm$8.85MPa; group 4, 35.98$\pm$9.14MPa; group 5, 39.66$\pm$8.45MPa; group 6, 43.26$\pm$13.01MPa; group 7, 25.07$\pm$4.2MPa;group 8, 30.4$\pm$4.74MPa;group 9, 33.61$\pm$7.88MPa. 2. One-Up Bond F was showed the highest value of 36.98$\pm$9.14MPa in dentin surface treatment with smearing, and there were significant differences to the other groups (p<0.05). 3. All-Bond 2 was showed the highest value of 40.93$\pm$10.94MPa in dentin surface treatment with ultra-sonic cleansing, but was no significant difference to One-Up Bond F(p>0.05) 4. All-Bond 2 was showed the highest value of 47.65$\pm$8.85MPa in dentin surface treatment with etch ing(10%phosphoric acid), and there were significant differences to the other groups(p<0.05). 5. All-Bond 2 was showed the highest value of 47.65$\pm$8.85MPa in dentin surface treatment according to manufacture's directions. but was no significant difference to One-Up Bond F(p>0.05). 6. AQ Bond was skewed the lowest microtensile bond strength with various dentin surface treatment, and the were significant differences to the other groups(p<0.05).

키워드

참고문헌

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