The effect of electrolyte concentration and electric potential on electrochemical dissolution of hyflexedm endodontic files : (Record no. 170044)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05856namaa22004331i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250223033405.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250106s2023 |||a|||f m||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 617.6342 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 617.6342 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.09.02.M.Sc.2023.Am.E. |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Amr Hossam El Din Hassan Hussein, |
| Preparation | preparation. |
| 245 14 - TITLE STATEMENT | |
| Title | The effect of electrolyte concentration and electric potential on electrochemical dissolution of hyflexedm endodontic files : |
| Remainder of title | An in-vitro study / |
| Statement of responsibility, etc. | By Amr Hossam El Din Hassan Hussein; Supervisors Prof. Dr. Geraldine m. Ahmed, Dr. Sarah Samir Abouelenien, Prof. Dr. Ahmed Abd El-Aziz. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تأثير تركيز الشوارد والإمكانات الكهربائية على الذوبان الكهروكيميائي للملفات اللبية هاي فليكس ا د م : |
| Remainder of title | دراسة معملية / |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2023. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 111 pages : |
| Other physical details | illustrations ; |
| Dimensions | 25 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.)-Cairo University, 2023. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 107-109. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Aim: To assess the effect of electrolyte concentration and electric potential on electrochemical dissolution of NiTi samples and HyFlex EDM files in simulated root canals. Methodology: This study involved acquiring anodic polarization curves and redox curves to establish the requisite conditions for dissolving endodontic files. Anodic polarization of 26 NiTi samples and HyFlex EDM files was implemented, and a comparative analysis using analysis of variance (P < 0.05) was conducted to assess the impact of varying concentrations of solutions and applied potentials. Two solutions were used: solution 1 [12 g/L NaF + 1 g/L NaCl] and solution 2 [12 g/L NaF + 180 g/L NaCl] at 2 different potentials 200 mV and 400 mV. This polarization was conducted to evaluate the dissolution of NiTi samples and HyFlex EDM files within simulated root canals. Weight loss measurements were recorded for the NiTi samples. Furthermore, a Scanning Electron microscope with embedded EDX analysis was used to examine the corrosion behavior of the tested samples.Results: Solution 2 [12 g/L NaF + 180 g/L NaCl] at 400 mV was associated with the most corrosive effect. Observation of the HyFlex EDM file tip revealed a gradual reduction in its size within the initial 30-minutes period. Anodic polarization of file fragments in simulated root canals for 60 minutes led to their partial dissolution. The analysis conducted using Two-way ANOVA indicated a significant impact of solution concentration (p=0.001), whereas no significant effect was observed for the applied voltage with a p-value of p=0.232. Conclusion: Solution 2 (12g NaF+180g NaCl) at 400mV led to the electrochemical dissolution of NiTi samples and HyFlex EDM files. Within simulated root canals, the anodic polarization of HyFlex EDM instruments at a current of 10 mA led to their gradual consumption as the polarization time increased. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | الهدف من هذه الدراسة هو تقييم تأثير تركيز المنحل بالكهرباء والجهد الكهربائي على الذوبان الكهروكيميائي لـهايان ا فلكس ا د م في قنوات الجذر المحاكاة.<br/>تضمنت هذه الدراسة الحصول على منحنيات استقطاب انوديك ومنحنيات الأكسدة والاختزال لتأسيس الشروط المطلوبة لحل الملفات اللبية. تم تنفيذ الاستقطاب الأنوديك لاثنين هاي فليكس ا د م ، وتم إجراء تحليل مقارن باستخدام تحليل التباين لتقييم تأثير تركيزات مختلفة من المحاليل والإمكانات التطبيقية. تم إجراء استقطاب شظي داخل قنوات الجذر المحاكاة لتقييم عملية انحلال الملف. تم استخدام ستة وعشرون عينة نيكل تيتانيوم من نفس تكوين ملفات هاي فلكس ا د م لتقليد سلوكهم. تم تسجيل قياسات فقدان الوزن لعينات نيكل تيتانيوم. علاوة على ذلك ، تم استخدام مجهر المسح الإلكتروني مع التحليل الطيفي بالأشعة السينية المضمن لفحص سلوك التآكل للعينات المختبرة. كشف الفحص لطرف ملف هاي فلكس ا د م عن انخفاض تدريجي في حجمه خلال فترة الثلاثين دقيقة الأولى. أدى الاستقطاب الأنوديك لشظايا الملف في قنوات الجذر المحاكاة لمدة ستين دقيقة إلى انحلالها الجزئي. أشار التحليل الذي تم إجراؤه باستخدام تحليل تباين ثنائي الاتجاه إلى تأثير كبير لتركيز المحلول، بينما لم يلاحظ أي تأثير كبير للجهد المطبق. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in English. |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Dental heart diseases |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Electric potential |
| -- | Instruments |
| -- | Nickel-titanium |
| -- | Electrochemical Dissolution |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Geraldine m. Ahmed |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sarah Samir Abouelenien |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmed Abd El-Aziz |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2023 |
| Supervisory body | Geraldine m. Ahmed |
| -- | Sarah Samir Abouelenien |
| -- | Ahmed Abd El-Aziz |
| Universities | Cairo University |
| Faculties | Faculty of Dentistry |
| Department | Department of Endodontics |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Sara Salah |
| Reviser Names | Huda |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 06.01.2025 | 89891 | Cai01.09.02.M.Sc.2023.Am.E. | 01010110089891000 | 06.01.2025 | 06.01.2025 | Thesis |