MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03041cam a2200313 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
EG-GiCUC |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
170121s2013 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.2013.Ha.E |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Hagar Hassan khaled Gibreel |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Evaluation of optical properties, morphological changes & surface degradability of ceramics immersed in different oral medias / |
| Statement of responsibility, etc. |
Hagar Hassan khaled Gibreel ; Supervised Jylan Fouad Elguindy , Maha Ahmed Taymour |
| 246 15 - VARYING FORM OF TITLE |
|---|
| Title proper/short title |
تقييم الخصائص البصرية والتغيرات المورفولوجية والتحلل السطحي للخزف المغمورفي الأوساط المختلفة الموجودة بالفم |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
|---|
| Place of publication, distribution, etc. |
Cairo : |
| Name of publisher, distributor, etc. |
Hagar Hassan khaled Gibreel , |
| Date of publication, distribution, etc. |
2013 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
92 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. |
This study was designed to investigate the effect of different oral media on the color change, surface roughness and chemical structure of Emax Ceram and Lava Ultimate. A specially designed copper mould was used to construct standardized disc shaped ceramic samples of 10 mm diameter and 2 mm thickness. CAD-CAM was used to construct the discs of the Lava Ultimate. Thirty samples were constructed 15 sample from Emax Ceram and 15 from Lava Ultimate, each group was subdivided to 4 subgroups. Subgroup A: control group Subgroup B: 4% acetic acid Subgroup C: artificial saliva Subgroup D: alkaline water. Color change was measured for all samples in each group using spectrophotometer. Surface roughness was also measured for each group by using stereomicroscope. Computerized chemical composition analysis was done for each group using energy dispersive x-ray (EDX) unit attached to the SEM. According to the gathered results it was found that: {uF0B7}Before the immersion the (control group) (Lava Ultimate) specimens had higher surface roughness than feldspathic porcelain (Emax-Ceram). {uF0B7}After the immersion it was found that Emax-Ceram group recorded statistically significant (p < 0.05) higher color change ({u2206}E) mean value than Lava Ultimate ceramic group. But the (Lava Ultimate) specimens also had the higher roughness than (Emax-Ceram). {uF0B7}The two types of ceramics corroded in the three media. {uF0B7}Irrespective of ceramic type, it was found that 4% acetic acid group recorded the highest color change ({u2206}E) mean values followed by alkaline water group while artificial saliva group recorded the lowest color change ({u2206}E) mean value |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE |
|---|
| Additional physical form available note |
Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Morphological Changes |
| 653 #4 - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Optical Properties |
| 653 #4 - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Surface degradability |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Jylan Fouad Elguindy , |
| Relator term |
|
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Maha Ahmed Taymour , |
| Relator term |
|
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
|---|
| Cataloger |
Nazla |
| Reviser |
Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
|---|
| Cataloger |
Shaima |
| Reviser |
Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Thesis |
