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The effect of sodium hypochlorite, EDTA and citric acid as irrigants on smear layer removal and opening of dentinal tubules : An In vitro study / Hussein Amr Youssef Shoukry ; Supervised Saeed M. Abdelaziz , Geraldine Mohamed Ahmed

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Hussein Amr Youssef Shoukry , 2016Description: 123 P. : facsimiles ; 25cmOther title:
  • تأثير هيبوكلوريت الصوديوم: اي دي تا وحمض الستريك كمواد ارواء على إزالة طبقة اللطاخة وفتح الأنابيب العاجية : دراسة فى المختبر [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics Summary: Aim: To evaluate and compare the ability of smear layer removal and opening of dentinal tubules using 5.25% sodium hypochlorite followed by 17% EDTA .To Evaluate and compare the ability of smear layer removal and opening of dentinal tubules using 5.25% sodium hypochlorite followed by 10% citric acid. Materials and Methods: The roots included in this study were mechanically prepared using crown-down technique. The roots were randomly divided to Group 1: final irrigation sequence was 3 ml of 5.25% NaOCl for 1 minute followed by 3 ml of distilled water for 1 minute. Group 2: final irrigation sequence was 3 ml of 5.25% NaOCl for 1 minute followed by 3 ml of 17% EDTA for 1 minute. Group 3: final irrigation sequence was 3 ml of 5.25% NaOCl for 1 minute followed by 3 ml of 10% citric acid for 1 minute. Root canal dentin was examined using an environmental scanning electron microscope (Quanta FEG 250 (NRC)). Microphotographs were obtained from each specimen at a magnification of 2000X. Evaluation of the smear layer removal and opening of dentinal tubules was achieved using computerized image analysis software (Leica QWin 500), which demonstrated the area of total opened dentinal tubules in relation to the area representing the total dentinal surface area of each microphotograph which was then expressed in percentage. Results: The results of this study revealed typical smear layer appearance, showing cracked, thick and amorphous smear layer covering all different root canal levels showing no exposed opened dentinal tubules in roots irrigated by NaOCl followed by distilled water (Group 1), therefore this group was excluded from the statistical analysis. However, Group 2 and 3 showed different degree of smear layer removal and opening of dentinal tubules, revealing statistically significant difference between them regarding all different root canal levels, showing the EDTA group (Group 2) was higher than the citric acid group (Group 3)
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.02.M.Sc.2016.Hu.E (Browse shelf(Opens below)) Not for loan 01010110071488000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.02.M.Sc.2016.Hu.E (Browse shelf(Opens below)) 71488.CD Not for loan 01020110071488000
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Cai01.09.02.M.Sc.2016.He.P Postoperative healing after endodontic treatment of teeth with apical periodontitis in diabetic patients : A cohort prospective study / Cai01.09.02.M.Sc.2016.He.P Postoperative healing after endodontic treatment of teeth with apical periodontitis in diabetic patients : A cohort prospective study / Cai01.09.02.M.Sc.2016.Hu.E The effect of sodium hypochlorite, EDTA and citric acid as irrigants on smear layer removal and opening of dentinal tubules : An In vitro study / Cai01.09.02.M.Sc.2016.Hu.E The effect of sodium hypochlorite, EDTA and citric acid as irrigants on smear layer removal and opening of dentinal tubules : An In vitro study / Cai01.09.02.M.Sc.2016.Is.E Evaluation of the antimicrobial effect and physical properties of AH plus sealer and Apexit plus sealer alone or mixed with each of amoxicillin or clindamycin : An in vitro study / Cai01.09.02.M.Sc.2016.Is.E Evaluation of the antimicrobial effect and physical properties of AH plus sealer and Apexit plus sealer alone or mixed with each of amoxicillin or clindamycin : An in vitro study / Cai01.09.02.M.Sc.2016.La.A An assessment of the cytotoxicity and penetration ability of a prepared nanosilver based irrigant into dentinal tubules : A comparative in vitro study /

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics

Aim: To evaluate and compare the ability of smear layer removal and opening of dentinal tubules using 5.25% sodium hypochlorite followed by 17% EDTA .To Evaluate and compare the ability of smear layer removal and opening of dentinal tubules using 5.25% sodium hypochlorite followed by 10% citric acid. Materials and Methods: The roots included in this study were mechanically prepared using crown-down technique. The roots were randomly divided to Group 1: final irrigation sequence was 3 ml of 5.25% NaOCl for 1 minute followed by 3 ml of distilled water for 1 minute. Group 2: final irrigation sequence was 3 ml of 5.25% NaOCl for 1 minute followed by 3 ml of 17% EDTA for 1 minute. Group 3: final irrigation sequence was 3 ml of 5.25% NaOCl for 1 minute followed by 3 ml of 10% citric acid for 1 minute. Root canal dentin was examined using an environmental scanning electron microscope (Quanta FEG 250 (NRC)). Microphotographs were obtained from each specimen at a magnification of 2000X. Evaluation of the smear layer removal and opening of dentinal tubules was achieved using computerized image analysis software (Leica QWin 500), which demonstrated the area of total opened dentinal tubules in relation to the area representing the total dentinal surface area of each microphotograph which was then expressed in percentage. Results: The results of this study revealed typical smear layer appearance, showing cracked, thick and amorphous smear layer covering all different root canal levels showing no exposed opened dentinal tubules in roots irrigated by NaOCl followed by distilled water (Group 1), therefore this group was excluded from the statistical analysis. However, Group 2 and 3 showed different degree of smear layer removal and opening of dentinal tubules, revealing statistically significant difference between them regarding all different root canal levels, showing the EDTA group (Group 2) was higher than the citric acid group (Group 3)

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