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The Effect of Lase Peroxide Sense and Whitening Lase II radiation on Gingival Microleakage of Different Types of Composite Resin Filling Materials. (An in Vitro Study) | ||
| Sulaimani Dental Journal | ||
| Article 2, Volume 3, Issue 1, 2016, Pages 7-13 PDF (462.95 K) | ||
| DOI: 10.17656/sdj.10052 | ||
| Author | ||
| Niaz H. Hama-Saeed | ||
| College of Dentistry, University of Sulaimani | ||
| Abstract | ||
| Aim: This in vitro study was conducted to evaluate the effect of lase peroxide sense, and whitening lase II radiation on gingival microleakage of three types of composite filling materials (tartaric N Ceram, SDR, GC). Materials and Methods: This study was performed on thirty caries free upper first premolar teeth. The Standardized class V cavity preparation on buccal and lingual surfaces of each tooth was done, then the teeth were randomly divided into two major groups: group 1 unbleached and group 2 bleached composites, then each main group divided into three subgroups; ten cavities (5teeth) for each group. The cavities were cleaned, and acid etched with 37% phosphoric acid, then bonding agent (G-permio bond) was applied according to the manufacturer's instructions. Group I and II the cavities were filled with tetric N ceram composite(Vivadent), group III and IVthe cavities were filled with SDR composite (SDI), and group V and VI the cavities filled with GC Essentia composite(GC). After filling the teeth in groups II, IV, VI were subjected to whitening lase II (DMC, USA) laser bleaching, according to manufacturer's instructions, then the teeth were thermo cycled for 500 cycles. After thermocycling all teeth were immersed in a freshly prepared solution of 2% methylene blue for 24 hours at 37Co then sectioned longitudinally. For gingival margins, dye penetration at the tooth/composite interfaces was analyzed using a stereomicroscope. Results: Statistical analysis of data by using Mann-Whitney Test Revealed that there was a significant difference among the different groups in both bleached and unbleached composite, Kruskal-Wallis Test revealed that there is a significant difference between bleached and unbleached composite for every type of material. Conclusions: All samples in this study showed microleakage with different levels. Hydrogen peroxide increased Microleakage in all tested materials. | ||
| Keywords | ||
| Laser bleaching; composite resin restoration; Microleakage; hydrogen peroxide | ||
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