Effect of laser or ultrasonic application on pneumatic crown removal / (Record no. 66291)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03281cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032008.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180523s2013 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.Ah.E |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ahmed Samir Awad Elsayed |
| 245 10 - TITLE STATEMENT | |
| Title | Effect of laser or ultrasonic application on pneumatic crown removal / |
| Statement of responsibility, etc. | Ahmed Samir Awad Elsayed ; Supervised Maged Elhakim , Maha Ahmed Taymour |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تأثير تطبيق الذبذبات فوق الصوتية أو الليزر لنزع التيجان بإستخدام نازع التيجان الهوائي |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Ahmed Samir Awad Elsayed , |
| Date of publication, distribution, etc. | 2013 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 75 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. | 6 This study investigated the in vitro effect of ultrasonic instrumentation or laser application on the removal resistance of crowns cemented with two different cements (glass ionomer and zinc phosphate) removed by pneumatic crown remover after thermocycling and cyclic loading Thirty extracted human maxillary first molars were used Teeth selected with average crown length 7.5mm and 7mm width. The molars were mounted in 3/4-inch diameter plastic cylinders filled with epoxy. With the use of ahorizontal milling device the crown of each tooth was machined to receive a full-coverage cast restoration. Teeth were prepared with taper of approximately 8 degrees .The preparation is adjusted to be 5mm length and 6mm in width. Chamfered cervical margins were established until their axial walls were 0.5 mm away from the external outline. Crowns were cast in nickel chromium alloy using conventional lost wax casting technique. Castings in each subgroup were luted with two cements: zinc phosphate (spofa) Glass ionomer (kromoglass). The specimens were subjected to thermal aging simulating the oral conditions with mean low-temperature point was 6.60C (range 0{u2013}36 0C, median 5.00C) then they were subjected to mechanical aging (20000 cycles). Cylinders holding prepared teeth are placed in fixation device and pneumatic crown remover is used to remove the crowns. Timing is calculated in fractions of second . Data was summarized using mean and standard deviation for quantitative variables. Comparisons between groups were done using unpaired t test when comparing 2 groups and analysis of variance (ANOVA) with multiple comparisons post hoc test when comparing more than 2 groups. P-values less than 0.05 were considered as statistically significant and given star while P-values less than 0.01were considered as statistically highly significant and given two stars |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Laser |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Pneumatic crown remova |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Ultrasonic application |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maged Elhakim , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maha Ahmed Taymour , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 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.2013.Ah.E | 01010110075089000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.09.09.M.Sc.2013.Ah.E | 01020110075089000 | 22.09.2023 | CD - Rom | 75089.CD |