THE EFFECTS OF PHOTOPOLYMERIZATION OF ADHESIVE ON SHEAR BOND STRENGTH AND MICROLEAKAGE OF FLOWABLE RESIN RESTORATION |
Yong-Kyu Park, Jong-Soo Kim, Seung-Hoon Yoo |
Dept. of Pediatric Dentistry, School of Dentistry, Dankook University |
유동성 레진 수복술에서 접착제 중합 여부에 따른 미세누출과 전단결합강도에 관한 연구 |
박용규, 김종수, 유승훈 |
단국대학교 치과대학 소아치과학교실 |
Correspondence:
Jong-Soo Kim, Tel: 041-550-1931,2, Fax: 041-555-2329, Email: jskim@dku.edu |
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Abstract |
This study was performed to evaluate possibility to reduce treatment time for child patient who have limited control activity during flowable composite resin restoration according to comparing microleakage and shear bond strength. Group I, II with Single BondTM, group III, IV with AQ Bond PlusTM, group V, VI with Prompt L-PopTM, and group VII as control group without adhesive system. 12 premolars and 10 molars were assigned into each group. Restorative material was used the Filtek Z350TM flowable. The results were as follows; 1. The result of microleakage evaluation, in the group I, II with Single BondTM showed low dye penetration score. Dye penetration between group I and group II were similar. 2. Results for shear bond strength at group I and group II showed values higher than other groups. (p<0.05) There were no statistical differences between group I and group II. (p>0.05) 3. There was no statistical differences among I and II, III and IV, V and VI groups. 4. Group VII showed significantly low shear bond strength than group I, II, V, VI(p<0.05). Group VII showed low value than group with III and IV, but no statistical significances. In conclusion, adhesive bonding resin was not affect significantly to microleakage and shear bond strength of flowable resin restoration. Therefore, to reduce the operation time, adhesive bonding resin and flowable composite resin can be cured at once. But contamination of saliva, location of cavities can affect to bond strength in clinical field. |
Key Words:
Shear bond strength, Microleakge, Flowable resin |
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