RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Effects of dentin moisture on the push-out bond strength of a fiber post luted with different self-adhesive resin cements

        Sevinç Aktemur Türker,Emel Uzunoğlu,Zeliha Yılmaz 대한치과보존학회 2013 Restorative Dentistry & Endodontics Vol.38 No.4

        Objectives: This study evaluated the effects of intraradicular moisture on the pushoutbond strength of a fibre post luted with several self-adhesive resin cements. Materials and Methods: Endodontically treated root canals were treated with oneof three luting cements: (1) RelyX U100, (2) Clearfil SA, and (3) G-Cem. Roots werethen divided into four subgroups according to the moisture condition tested: (I) dry:excess water removed with paper points followed by dehydration with 95% ethanol,(II) normal moisture: canals blot-dried with paper points until appearing dry, (III)moist: canals dried by low vacuum using a Luer adapter, and (IV) wet: canals remainedtotally flooded. Two 1-mm-thick slices were obtained from each root sample and bondstrength was measured using a push-out test setup. The data were analysed using atwo-way analysis of variance and the Bonferroni post hoc test with p = 0.05. Results:Statistical analysis demonstrated that moisture levels had a significant effect on thebond strength of luting cements (p < 0.05), with the exception of G-Cem. RelyX U100displayed the highest bond strength under moist conditions (III). Clearfil SA had thehighest bond strength under normal moisture conditions (II). Statistical ranking ofbond strength values was as follows: RelyX U100 > Clearfil SA > G-Cem. Conclusions:The degree of residual moisture significantly affected the adhesion of luting cements toradicular dentine.

      • KCI등재

        Mineral content analysis of root canal dentin using laser-induced breakdown spectroscopy

        Selen Küçükkaya Eren,Emel Uzunoğlu,Banu Sezer,Zeliha Yılmaz,İsmail Hakkı Boyacı 대한치과보존학회 2018 Restorative Dentistry & Endodontics Vol.43 No.1

        Objectives This study aimed to introduce the use of laser-induced breakdown spectroscopy (LIBS) for evaluation of the mineral content of root canal dentin, and to assess whether a correlation exists between LIBS and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) methods by comparing the effects of irrigation solutions on the mineral content change of root canal dentin. Materials and Methods Forty teeth with a single root canal were decoronated and longitudinally sectioned to expose the canals. The root halves were divided into 4 groups (n = 10) according to the solution applied: group NaOCl, 5.25% sodium hypochlorite (NaOCl) for 1 hour; group EDTA, 17% ethylenediaminetetraacetic acid (EDTA) for 2 minutes; group NaOCl+EDTA, 5.25% NaOCl for 1 hour and 17% EDTA for 2 minutes; a control group. Each root half belonging to the same root was evaluated for mineral content with either LIBS or SEM/EDS methods. The data were analyzed statistically. Results In groups NaOCl and NaOCl+EDTA, the calcium (Ca)/phosphorus (P) ratio decreased while the sodium (Na) level increased compared with the other groups (p < 0.05). The magnesium (Mg) level changes were not significant among the groups. A significant positive correlation was found between the results of LIBS and SEM/EDS analyses (r = 0.84, p < 0.001). Conclusions Treatment with NaOCl for 1 hour altered the mineral content of dentin, while EDTA application for 2 minutes had no effect on the elemental composition. The LIBS method proved to be reliable while providing data for the elemental composition of root canal dentin.

      연관 검색어 추천

      활용도 높은 자료

      이 검색어로 많이 본 자료

      해외이동버튼