Evaluation of the marginal accuracy and internal fit of metal copings fabricated by CAD/CAM techniques compared to conventional lost wax technique : (Record no. 67116)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 03265cam a2200313 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180825s2017 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.09.09.M.Sc.2017.Am.E |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Amr Ali Youssef |
| 245 10 - TITLE STATEMENT | |
| Title | Evaluation of the marginal accuracy and internal fit of metal copings fabricated by CAD/CAM techniques compared to conventional lost wax technique : |
| Remainder of title | An in vitro study / |
| Statement of responsibility, etc. | Amr Ali Youssef ; Supervised Adel Eltannir , Maha Ahmad Taymour |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تقييم الدقة الحافّيه و الإحكام الداخلي للأغطية المعدنية المصّنعة بتقنية الكاد كام مقارنة بتقنية الشمع المتبدد : |
| Remainder of title | دراسة معملية |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Amr Ali Youssef , |
| Date of publication, distribution, etc. | 2017 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 72 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The aim of this study was to evaluate and compare the marginal gap and internal adaptation of metal copings produced by four techniques: 1. Conventional waxing technique (CW) 2. Milled metal technique (MM) 3. Milled wax technique (MW1) 4. Milled wax technique with margination (MW2) A master metal die was produced by taking an impression of a prepared acrylic Typodont first maxillary molar, which was poured in Duralay and cast from a base metal alloy. Forty stone dies were poured from forty poly-ether regular body impressions of the master metal die. These stone dies were randomly assigned to the four study groups (n=10) for each group. For the CAD/CAM groups the dies were scanned in the Shera Eco-Scan 7 series scanner and design was carried out according to predetermined parameters on the DWOS software, after designing the STL files where transferred to the milling station SheraEcomill 5X for production of the copings. The MM group was milled from Co-Cr blanks and after milling the copings were separated from the sprues and checked on their respective stone dies and master metal die. The CAD/CAM wax groups were then sprue, the MW2 group went through the process of margination before investment, the wax patterns were then invested and cast from Co-Cr alloy blanks. The produced metal copings were then de-vested, finished and evaluated on their stone dies and master metal die. For the (CW) group the wax patterns were produced by the conventional wax build up technique using blue inlay wax and P.K.Thomas wax droppers and then were cast in the conventional manner. The metal copings were then seated on the master metal die by the help of a spring loading device and the vertical marginal gap measurements were recorded by the direct view technique using a stereo-microscope, 10 measurements were taken ant each surface giving a total of 40 readings per sample |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | CAD/CAM |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Metal copings fabricated |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Milled metal technique (MM) |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Adel Eltannir , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maha Ahmad Taymour , |
| Relator term | |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.09.09.M.Sc.2017.Am.E | 01010110075553000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.09.09.M.Sc.2017.Am.E | 01020110075553000 | 22.09.2023 | CD - Rom | 75553.CD |