Mechanical characterization of an experimental newly formulated resin infiltrated lithium-disilicate ceramic network versus resin infiltrated feldspathic ceramic network : (Record no. 170690)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05779namaa22004091i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250223033428.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250209s2023 |||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 | 617.695 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 617.695 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.09.10.Ph.D.2023.Ma.M |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Mariam Adel Hosny Mohamed, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Mechanical characterization of an experimental newly formulated resin infiltrated lithium-disilicate ceramic network versus resin infiltrated feldspathic ceramic network : |
| Remainder of title | In-vitro study / |
| Statement of responsibility, etc. | by Mariam Adel Hosny Mohamed ; Supervisors Prof. Dr. Ahmed Nour El-Din Ahmed Habib, Prof. Dr. Moustafa Aboushlieb. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تقييم الخواص الميكانيكية لمادة تجريبية مصنوعة حديثا من شبكة السيراميك ليثيوم ديسيليكاتي المطعمة ب الراتنج مقابل شبكة السيراميك فيلدسباثيك المطعمه ب الراتنج : |
| 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 | 105 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 (Ph.D)-Cairo University, 2023. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 61-66. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Aim: Mechanical properties of Polymer infiltrated ceramic network (PICN) range between that of resin-based composites and ceramics. Ongoing research on experimental PICNs shows impressive and promising results in terms of mechanical properties. The aim of this study was to evaluate the mechanical properties of a newly fabricated resin infiltrated lithium disilicate ceramic CAD/CAM block, in terms of; fracture load, flexural strength, fracture toughness, hardness and brittleness. Commercially available resin infiltrated feldspathic ceramic network was used as control.<br/>Methodology: IPS e.max CAD/CAM blocks were grinded into powder and used to produce porous ceramic network (25% porosity). Methylmethacrylate resin was infiltrated and polymerized to form a dense PICN. Porosity percentage and microstructure were investigated. Crowns were milled from newly fabricated PICN blocks and Vita Enamic then fracture load test was performed. Rectangular specimens were prepared from both materials, afterwards, flexural strength, fracture toughness, brittleness and Vickers’ hardness tests were investigated. Data were analyzed by independent sample-t test and paired sample-t test (α = 0.05, n = 12).<br/>Results: Newly formulated PICN had significantly higher fracture resistance (1640 N), fracture toughness (2.6 MPa m1/2) and lower brittleness index (0.89 μm1/2) compared to Vita Enamic (p < 0.001). In addition, no significant difference was found between the two materials in terms of hardness (p= 0.68) and flexural strength (p = 0.87).<br/>Conclusion: Newly fabricated PICN material showed enhanced mechanical properties that can justify its selection and clinical application for successful restorative treatments |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Mechanical properties of Polymer infilterated ceramic network (PICN) range between that of resin-based composites and porcelains. Ongoing studies on experimental PICNs shows promising results indicating that the mechanical properties of PICN can be enhanced by optimizing its chemical composition. The aim of this study is to evaluate the mechanical properties of a newly fabricated resin infiltrated ceramic CAD/CAM block where ceramic network is composed of glass-ceramic (lithium disilicate), in terms of ; flexural strength, fracture toughness, hardness, brittlness index and fracture load. Then compare it with commercially available resin infiltrated feldspathic ceramic network. Lithium disilicate CAD/CAM blocks were grinded into powder and used to produce a sintered porous ceramic network (25% porosity). Then, resin was infiltrated and polymerized to form a dense newly fabricated PICN. Rectangular specimens were prepared from both materials (n=12), Afterwards, flexural strength, fracture toughness, brittlnes index and Vickers’ hardness tests were investigated. Crowns were milled from newly fabricated PICN blocks and Vita Enamic (n=12) then fracture load test was performed. Results of this study showed that newly formulated PICN has significantly higher fracture load, fracture toughness and lower brittlness index compared to Vita Enamic. In addition, no significant difference was found between the two materials in terms of hardness and flexural strength . Those properties provides resistance against mechanical failure during occlusal loading while improving the millability of the material. This study results of newly fabricated PICN material can justify its selection and clinical application for successful and safe restorative treatments, however, further clinical studies are required in order to infer about the long-term behavior of this PICN in comparison with the already pre-established success and longevity of restorations with the classic ceramic-based restorative materials. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Materials science |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Disilicate Versus |
| -- | Characterization |
| -- | Feldspathic |
| -- | Ceramic Network |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmed Nour El-Din Ahmed Habib |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2023 |
| Supervisory body | Ahmed Nour El-Din Ahmed Habib |
| -- | Moustafa Aboushlieb |
| Discussion body | Taheya Moussa |
| -- | El-Sayed Gad Eid Gad El-Sayed |
| Universities | Cairo University |
| Faculties | Faculty of Dentistry |
| Department | Department of Dental Materials science |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Shimaa |
| 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 | 09.02.2025 | 90395 | Cai01.09.10.Ph.D.2023.Ma.M | 01010110090395000 | 09.02.2025 | 09.02.2025 | Thesis |