Wear behavior of polished and glazed ultra-translucent cubic zirconia against natrual enamel : (Record no. 170935)
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| 000 -LEADER | |
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| fixed length control field | 07522namaa22004331i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250223033436.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250220s2023 |||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 | 617.692 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 617.692 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.09.09.M.Sc.2023.Mo.W. |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Mohamed Safwat Massoud, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Wear behavior of polished and glazed ultra-translucent cubic zirconia against natrual enamel : |
| Remainder of title | An in-vitro study / |
| Statement of responsibility, etc. | By Mohamed Safwat Massoud; SUPERVISORS Prof. Gihan Abdelhady El-naggar, Ass.prof. Dr. Reham Saied El Basty. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | سلوك تآكل الزركونيا المكعبة فائقة الشفافيه المصقوله والمزججه ضد المينا الطبيعيه : |
| Remainder of title | دراسة معمليه / |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2023. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 113 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 96-109. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Objectives: The purpose of this in vitro study was to assess the effect of two surface finishing protocolos ( Polishing and Glazing) on surface roughness as well as wear behavior of polished and glazed ultra-translucent cubic zirconia against natural enamel. Methodology: A total of eighteen CAD/CAM fabricated ultra-translucent multilayered cubic zirconia crowns were constructed. Crown samples were then sintered in program at S1 sintering furnace according to manufacturer instructions. Crown samples were divided into two groups according to the surface finishing protocols. Group1: Polishing surface finish. n=9. Group2: Glazing surface finish. n=9. Surface roughness was assessed by a non-contact profilometer while wear behavior was assessed by 3D superimposition. Results: An overall comparison between both groups regarding the amount of surface roughness before wear simulation revealed that there was no statistically significant difference between mean Ra of polished (0.204 µm) and glazed zirconia (0.225 µm). overall comparison between both groups regarding amount of surface roughness after wear simulation revealed that there was no statistically significant difference between mean Ra of polished (0.25 µm) and glazed zirconia (0.2539 µm). With regard to results of the variables interaction on surface roughness (Ra) before and after wear simulation, the mean Ra values for polished zirconia crowns before and after wear testing were (0.204 µm) and (0.25 µm) respectively. On the other hand, the mean Ra values for glazed zirconia crowns before and after wear simulation were (0.225 µm) and (0.2539 µm) respectively. So, there was a statistically significant increase in mean Ra after wear testing in both groups. With reference to the results of the comparison between changes in surface roughness (ΔRa) of glazed and polished zirconia, the mean (ΔRa) of polished zirconia crowns was (0.046 µm), while the mean (ΔRa) of glazed zirconia crowns was (0.0288 µm). Therefore, glazed zirconia crowns showed statistically significant lower change in surface roughness (ΔRa) than polished zirconia crowns. Regarding superimposition method, the mean RMS values of polished and glazed zirconia were (0.1158 µm) and (0.1655 µm), respectively. Therefore, there was no statistically significant difference between RMS of polished and glazed zirconia crowns. Regarding the results of correlation between surface roughness changes and root mean square, there was a direct correlation between (ΔRa) and (RMS) with no statistical significance. (Correlation coefficient = 0.166, P-value = 0.510). Conclusions: <br/>1-Surface roughness of ultra-translucent multilayered cubic zirconia increased after wear simulation in both tested groups (Polishing and Glazing) with greater surface roughness changes observed in the polished group.<br/>2-Both surface finishing protocols (Polishing and Glazing) showed comparable wear behavior in ultra-translucent multilayered cubic zirconia crowns.<br/>3-Polishing and glazing can be used alternatively as surface finishing protocols for Ultra-translucent multilayered cubic zirconia crowns.<br/>4-Direct correlation was found between the surface roughness changes produced by both tested surface finish protocol (Polishing and Glazing) and wear behavior of ultra-translucent multilayered cubic zirconia crowns. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | أصبح البحث عن أفضل نتيجة جمالية إلزاميا في الوقت الحاضر للمريض عند استعادة أسنانه ، ليس هذا فحسب ، بل أيضا يتم التأكيد على طول عمر ومتانة هذه النتيجة بشكل كبير من قبل المرضى. لذا فإن اختيار المواد لتلبية جميع متطلبات المريض يصبح عملية أكثر تعقيدا وتصبح التشطيبات السطحية النهائية ذات أهمية كبيرة ليس فقط لزيادة طول عمر ترميم الأسنان ولكن أيضا لحفظ الأسنان المقابلة. في الآونة الأخيرة ، أدى التقدم في سيراميك الأسنان إلى تحسين خصائصها الميكانيكية والبصرية بشكل كبير للتغلب على عيوب جميع عمليات ترميم السيراميك على مدى عقود مثل التقطيع والتشقق والتآكل وتفريغ سيراميك القشرة. يتم تقديم مجموعة متنوعة من سيراميك الأسنان في السوق من بينها زركونيا مكعبة متعددة الطبقات فائقة الشفافية والتي تجذب العديد من أطباء الأسنان في جميع أنحاء العالم بسبب خصائصها الميكانيكية الممتازة والتوافق الحيوي والجماليات الجيدة مقارنة بمادة ثنائي سيليكات الليثيوم منخفضة الشفافية. يمكن أن تؤثر بروتوكولات تشطيب الأسطح المستخدمة لهذه المادة على خشونة سطحها وسلوك التآكل إلى حد ما. ومع ذلك ، لا يزال نقص المعرفة العلمية حول خشونة سطحه وسلوك التآكل موجودا ويحتاج إلى مزيد من التحقيقات. لذا فإن الهدف من هذه الدراسة في المختبر هو تقييم بروتوكولات التشطيب المختلفة المطبقة على الزركونيا المتجانسة متعددة الطبقات المكعبة فائقة الشفافية التي تم إدخالها حديثا وتأثيرها على خشونة السطح وكذلك سلوك التآكل. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issued 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 material, crowns and bridges |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | cubic zirconia |
| -- | ultra-translucent zirconia |
| -- | multilayered zirconia |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gihan Abdelhady El-naggar |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Reham Saied El Basty |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2023 |
| Supervisory body | Gihan Abdelhady El-naggar |
| -- | Reham Saied El Basty |
| Universities | Cairo University |
| Faculties | Faculty of Dentistry |
| Department | Department of Fixed Prosthodontics |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Sara Salah |
| 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 | 20.02.2025 | 90644 | Cai01.09.09.M.Sc.2023.Mo.W. | 01010110090644000 | 20.02.2025 | 20.02.2025 | Thesis |