| THE COMPARATIVE STUDY FOR THE SHEAR BOND STRENGTH OF DENTAL ADHESIVES CURED WITH VARIOUS LIGHT SOURCES |
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Nam-Ki Choi, Seong-Hoon Cho, Seon-Mi Kim |
| Department of Pediatric Dentistry, School of Dentistry, Chonnam National University and Dental Research Institute |
| 다양한 광원으로 중합한 치과용 접착제의 전단강도에 관한 비교 연구 |
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최남기, 조성훈, 김선미 |
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전남대학교 치의학전문대학원 소아치과학교실 |
Correspondence:
Nam-Ki Choi, Tel: 062-530-5843, Email: nkchoi@chonnam.ac.kr
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Received: 20 November 2010 • Accepted: 17 February 2011 |
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| Abstract |
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The objective of this study was to compare the shear bond strengths of five dentin adhesive systems cured with three different light curing sources. Seventy five noncarious permanent teeth were collected and stored in an 0.1% thymol solution at room temperature
after extraction. The tested adhesives were: Adper Scotchbond Multi-purpose Plus Adhesive (SM) Adper Single bond 2 (SB), Clearfil SE Bond (SE), Adper Prompt L-Pop (PL), G-Bond (GB). And three light curing unit systems were used: Elipar Free light 2(LED), OptiLux 501 (Halogen), Flipo (PAC). For the shear bonding test, the labial and lingual surfaces of permanent teeth were used. To obtain a flat dentin surface, the
labial and lingual surfaces of the teeth were sanded on SiO2 with number 600 grit and then divided into 15 groups of 10 surfaces each. All samples were theromocycled in water 5℃ and 55℃ for 1000 cycles. The results were as follows: 1. When cured with Freelight 2, the shear bond strength of SM was significantly higher than that of PL, GB (p<0.05), whereas no significant difference was found among those of any other bonding agents. 2. When cured with Optilux 501, the shear bond strength of SM was significantly higher than those of any other bonding agents (p<0.05), whereas no singnificant difference was found among those of andy other bonding agents. 3. When cured with Flipo, the shear bond strength of SM was significantly higher than those of SB, SE, GB (p<0.05), whereas no significant differences was found among those of any other bonding agents. 4. For comparison according to three different light cure unit system, except SB and GB, each three dentin bonding agents showed no significant difference. For SB, only Freelight 2 was significantly higher than the others, with no significant difference between Optilux 501 and Flip. For GB, Statistically significant difference was found only between Freelight and Flipo. |
| Key Words:
Dentin bonding system, Light curing system, Shear bond strength |
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