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RISS 인기검색어
- 검색키워드
- 저자 : Monaj Chandak (검색결과 1 건)
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Jyoti Lokade,Sattyam Wankhade,Shelly Roy,Monaj Chandak 대한예방치과학회 2012 International Journal of Clinical Preventive Denti Vol.8 No.3
Objective: This in vitro study compare and evaluate Fracture Resistance of roots filled with gutta percha-AH Plus sealer and Resilon Epiphany with cold lateral and warm vertical compaction techniques. Interface of dentin, sealer and core material of each group were also evaluated under scanning electron microscope. Methods: 125 single-canal extracted mandibular first premolars were divided into five groups: lateral and vertical compaction with gutta-percha/AH Plus sealer, lateral and vertical compaction with Resilon Epiphany, and a control group with no filling material. The samples were stored in 100 percent humidity for two weeks, mounted in acrylic resin and loaded to failure under Instron testing machine. One sample from each group was longitudinally sectioned, placed in dessicator, sputter coated with gold palladium and evaluated by using scanning electron microscope to check the interface of dentin, sealer and core filling material. Results: Resilon epiphany groups displayed higher mean fracture loads and the gutta-percha groups lower mean fracture load values than the control unfilled group. There is no gap seen between Resilon Epiphany & dentin in lower manification (500×) & gap seen between gutta percha, sealer & dentin interface. There was one microgap seen at 2,000× power SEM between the Resilon filling & dentin at middle 1/3rd. There was no gap at 2,000× power SEM between Resilon, Epiphany and dentin at coronal and apical third. Conclusion: Filling the root canals with Resilon/Epiphany increases the in vitro resistance to fracture of roots of extracted teeth with single canal.
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