Fracture resistance of occlusal veneers fabricated from different types of cad/cam materials : (Record no. 171034)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05934namaa22004211i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250406130854.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250227s2023 |||a|||frm||| 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 | 617.695 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 617.695 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.09.09.M.Sc.2023.Ly.E. |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Lydia Amir Fouad Ibrahim, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Fracture resistance of occlusal veneers fabricated from different types of cad/cam materials : |
| Remainder of title | An in vitro study / |
| Statement of responsibility, etc. | By Lydia Amir Fouad Ibrahim; Supervisors Prof. Dr. Hany Halim Nasr, Dr. Omnia Nabil Ahmed. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | مقاومة الكسر للقشرة الإطباقية المصنوعة من أنواع مختلفة من مواد التصميم بمساعدة الكمبيوتر : |
| 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 | 99 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 92-98. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Aim: The aim of this in vitro study was to evaluate the effect of different CAD/CAM materials (Lithium disilicate glass ceramic, polymer infiltrated ceramic and Machinable resin composite) on the occlusal veneers fracture resistance. Methodology: A Mandibular first molar of a typodont model was prepared into flat occlusal veneer preparation. The prepared typodont tooth was duplicated using rubber base duplicating material to obtain 21 epoxy resin dies, scanned then occlusal veneers of the three groups were designed then milled to construct 21 occlusal veneers. The fabricated occlusal veneers were separated into three groups (n=7) based on the material of construction: group I: (IPS e.max® CAD occlusal veneers), group II: (Vita Enamic® Occlusal veneers) and group III: (BRILLIANT Crios®). The 21 occlusal veneers were bonded according to the manufacturer instructions to their corresponding epoxy resin dies. Then restorations were subjected to vertical compressing loading using the universal testing machine. The maximum load and the mode of failure were recorded. Results: Comparison between the three groups using One Way ANOVA test demonstrated significant difference between them as P=0.003, Group I (1035.23N) was significantly lower than group II (1863.18 N) as P=0.003, Group I (1035.23N) was also significantly lower than group III (1697.17 N) as P=0.01, Group II was insignificantly higher than group III as P=0.73. Also, Group I and II had restorable mode of failure while Group III had both restorable and non-restorable mode of failure Conclusions: All the examined CAD/CAM materials revealed fracture loads that exceed the normal range of the masticatory forces and the highest fracture resistance was achieved by the PICN (Vita Enamic) followed by the Machinable resin composite (Brilliant Crios |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | اكتسبت القشرة الإطباقية شعبية كبيرة غير مدمرة لأسنان البالية، وقد تم اقتراح العديد من المواد التي تتمتع بميزة كونها قابلة للالتصاق ببنية الأسنان. وتعتبر مقاومة هذه المواد للكسر كذلك مهم جدا لاطالة عمرهذه المعالجة الحديثة.. صممت هذه الدراسة لمقارنة مقاومة الكسر للمواد الثلاث: ثنائي سيليكات الليثيوم (IPS e.max CAD), السيراميك المهجن (Vita Enamic) و الراتنج المهجن(Brilliant Crios). تم استخدام الضرس الأول للفك السفلي من نموذج بلاستيكي (Typodont) لتحضير قشرة إطباقية مسطحة بسمك 1 مم, و لهذا الغرض تم تحضير عدد 21 قالب باستخدام مادة للتطابق ذات قاعدة مطاطية (Duplicating material) للحصول على عدد واحد و عشرون نموذج من راتنجات الايبوكسي(Epoxy resin)، ثم تم تصوير التحضير المجهز على النموذج البلاستيكي باستخدام تقنية التصوير الرقمي, و تصميم و خرط القشور الإطباقية (Occlusal veneer) بواسطة الكمبيوتر باستخدام تقنيه ال (CAD/CAM) وبعد الانتهاء من صنع عدد واحد و عشرون قشور الأطباق و تلميعها وفقًا لتعليمات الشركة المصنعة تم لصقها على نماذخ الإيبوكسي حيث ان: مجموعة I: قشرة اطباقية مصنعة من ثنائي سيليكات الليثيوم (IPS e.max CAD).عدد العينات =7 <br/>مجموعة II: قشرة اطباقية مصنعة من السيراميك المهجن (Vita Enamic). عدد العينات =7 مجموعة III : قشرة اطباقية مصنعة من الراتنج المهجن(Brilliant Crios). عدد العينات =7 تم إخضاع العينات الي عملية التحميل بالضغط الرأسي حتى الكسر. تم تسجيل الحد الأقصى للحمل وفحص العينات لتبين حالتها من حيث قابليتها للاستعاضة مرة اخري من عدمه. |
| 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 materials |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Lithium disilicate |
| -- | Polymer infiltrated ceramic network |
| -- | Machinable resin composite |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hany Halim Nasr |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Omnia Nabil Ahmed |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2023 |
| Supervisory body | Hany Halim Nasr |
| -- | Omnia Nabil Ahmed |
| Universities | Cairo University |
| Faculties | Faculty of Dentistry |
| Department | Department of Fixed prosthodontics. |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Sara Salah |
| Reviser Names | Eman Ghareb |
| 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 | 27.02.2025 | 90936 | Cai01.09.09.M.Sc.2023.Ly.E. | 01010110090936000 | 27.02.2025 | 27.02.2025 | Thesis |