Tuesday, April 22, 2014

Comparative Evaluation of the Effects of Ozone, Diode Laser, and Traditional Cavity Disinfectants on Microleakage



ifa Güne, Emrullah Bahsi, Bayram nce, Hakan Çolak, Mehmet Dalli, zzet Yavuz, Cafer Sahbaz & Suzan Cangül (2014) Comparative Evaluation of the Effects of Ozone, Diode Laser, and Traditional Cavity Disinfectants on Microleakage, Ozone: Science & Engineering: The Journal of the International Ozone Association, 36:2, 206-211, DOI: 10.1080/01919512.2013.842888


Aim: This study aimed to evaluate the effects on microleakage of the application of ozone gas, laser and tra- ditional cavity disinfection under in vitro conditions. 

Material and Methods: Ninety third-molar teeth extracted for various reasons were used in this study. All the teeth were prepared with a standard V cavity on the buccal sur- face. Then the teeth were randomly allocated to one of 6 groups of 15 teeth; Group 1 benzalkonium chloride, Group 2 chlorhexidine gluconate, Group 3 sodium hypochloride, Group 4 diode laser, Group 5 ozone gas, Group 6 control group- no disinfection was applied. Primer was applied to the cavities, then bond and 10-s polymerization. Clearfil AP-X was used in the cavities as a hybrid composite and poly- merized for 20 s. The samples then underwent 1000 thermal cycles of 30-s application, in baths at temperatures between 5 ± 2 C and 55 ± 2 C. All the samples were stirred in 0.5% basic phuxine solution and the sections taken under stereomicroscope were examined and photographed at 15 × magnification. SEM analysis was made and the obtained results were statistically evaluated with the Kruskal–Wallis test. 

Results: No significant difference was seen between the groups in respect of the microleakage values of both the occlusal and gingival edges (p > 0.05). Comparison of the microleakage values of the occlusal and gingival edges of the groups determined the least leakage to be in the ozone group (p > 0.05). 

Conclusion: No statistical significance was determined between the groups. However, the mean least microleakage was found in the ozone group and the highest amount in the control group.

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