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Öğe Bond Strength of Three Different Dentin Bonding Systems to Abraded Dentin(Int Amer Assoc Dental Researchi a D R/a a D R, 2003) Karakaya, S.; Ünlü, Nimet; Say, E. C.; Özer, F.; Soyman, N.; Tagami, J.[Abstract not Available]Öğe Comparison of Antibacterial Activity of Two Dentin Bonding Systems Using Agar Well Technique and Tooth Cavity Model(Elsevier Sci Ltd, 2003) Özer, F.; Karakaya, S.; Ünlü, Nimet; Erganiş, Osman; Kav, K.; Imazato, S.Objective. This study compared the antibacterial activities of two dentin bonding systems (ABF, Kuraray and Reactmer Bond, Shofu) by a conventional agar well technique and a newly designed in vitro test using tooth model. Methods. In the agar well technique, the test materials were filled in the welts of Muller Hinton agar plates inoculated with Streptococcus mutans NCTC10449, and the diameters of inhibition zones produced around the materials were measured after 24 h of incubation. For the tooth model test, three cavities (diameter 1 mm, depth 2 mm) were prepared in the flat occlusal dentin of human extracted molar. After sterilization, the teeth were left in broth culture of 1.56 x 10(8) CFU/ml of S. mutans at 37 degreesC for 72 h for allowing bacteria to invade the cavity. The dentin bonding systems were applied separately to each of the two infected cavities, and the third cavity was left unapplied for control. After seating the occlusat surfaces, the teeth were kept in physiologic saline solution at 37 degreesC for 72 h. The standardized amounts of dentin chips (120 +/- 5 mg) were obtained from the cavity walls and the number of bacteria recovered was determined. The results were analyzed by One Way ANOVA, Kruskal Wallis and Mann-Whitney's U tests. Results. The primer of ABF and Reactmer Bond produced inhibition zones with similar sizes (p > 0.05), but the bonding resin of ABF did not produce any inhibition. When tested by the mode( cavity method, the application of ABF resulted in significantly less bacterial. recovery than Reactmer Bond (p < 0.05), demonstrating substantial antibacterial effects. Conclusions. The tooth model method used in this study was effective for evaluating the substantial, antibacterial effects of dentin bonding agents, and the experimental dentin bonding system ABF was demonstrated to be able to inactivate the bacteria in the cavity effectively in comparison with little antibacterial activity shown by Reactmer Bond.Öğe Comparison of Two Different Bond Strength Tests (a Miroshear and a Microtensile Study).(INT AMER ASSOC DENTAL RESEARCHI A D R/A A D R, 2002) Eskitascıoğlu, G.; Karakaya, S.; Özyeşil, A. G.; Belli, Sema[Abstract not Available]Öğe Influence of Primer Application Times on Bond Strength to Abraded Dentin(Int Amer Assoc Dental Researchi a D R/a a D R, 2003) Ünlü, Nimet; Karakaya, S.; Say, E. C.; Özer, Füsun; Soyman, M.; Tagami, J.[Abstract not Available]Öğe Reducing Microleakage in Composite Resin Restorations: an in Vitro Study.(INT AMER ASSOC DENTAL RESEARCHI A D R/A A D R, 2002) Ünlü, Nimet; Karakaya, S.; Özer, F.[Abstract not Available]
