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Leakage testing for different adhesive systems and composites to permanent teeth


1 Department of Pedodontics, Dental Faculty, Mustafa Kemal University, Hatay, Turkey
2 Department of Pedodontics, Dental Faculty, Dicle University, Diyarbakir, Turkey
3 Department of Restorative, Dental Faculty, Mustafa Kemal University, Hatay, Turkey
4 Department of Pedodontics, Dokuz Eylül University, Izmir, Turkey

Correspondence Address:
BS Bolgül,
Department of Pedodontics, Dental Faculty, Mustafa Kemal University, Hatay
Turkey
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Source of Support: None, Conflict of Interest: None

Aim: To explore the microleakage of different adhesive systems and flowable composites to permanent teeth. Subjects and Methods: In this study, a total of 84 human premolar teeth were used. Class V cavities were prepared on the buccal surfaces. The teeth were randomly assigned to six groups of 14 teeth each as follows: The first group - etch-rinse adhesive applied and cavities filled with flowable composite, the second group - etch-rinse adhesive applied and cavities filled with bulk-fill resin composite, the third group - one-stage self-etch (SE) adhesive applied and cavities filled with flowable composite, the fourth group - one-stage SE adhesive applied and cavities filled with bulk-fill resin composite, the fifth group - two-stage SE adhesive applied and cavities filled with flowable composite, and the sixth group - two-stage SE adhesive applied and cavities filled with bulk-fill resin composite. All specimens were then stored for 24 h at 37΀C in distilled water. Teeth were then thermocycled for 500 cycles between 5΀C and 55΀C prior to immersion in 0.5% basic fuchsin for 24 h. Two mesiodistal cuts of each tooth were photographed for leakage with a digital camera. The dye infiltrated surface for each specimen was measured and data were collected with a software program. Statistical evaluations were done by nonparametric Kruskal-Wallis test and Mann-Whitney U-test. Results: There were statistically significant differences in mean microleakage ratio among the groups (P < 0.05). The first group had shown significantly increased microleakage areas than the other four groups (third, fourth, fifth, and sixth groups) (P < 0.05), except for the second group (P > 0.05). It was also no significant different between the mean microleakage areas of group fourth and group fifth (P > 0.05). The sixth group had exhibited the lowest microleakage areas, and it was statistically significant (P < 0.05) compared to the other groups. Conclusions: In this study, it has been found that the use of total etch adhesive systems resulted in high leakage values.


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    -  Ayna B
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