Retention strength of polyetheretherketone crowns Vs. zirconia crowns restoring molar teeth : (Record no. 81584)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03880cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032758.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 210802s2020 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.2020.He.R |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Hebat Allah Mohammad Hassan Sayed |
| 245 10 - TITLE STATEMENT | |
| Title | Retention strength of polyetheretherketone crowns Vs. zirconia crowns restoring molar teeth : |
| Remainder of title | An in vitro study / |
| Statement of responsibility, etc. | Hebat Allah Mohammad Hassan Sayed ; Supervised Hesham Alansary , Lamia Kheiralla |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | قوة الاستبقاء للتيجان المصنوعة من مادة (البولى ايثر ايثر كيتون) مقارنة بالتيجان المصنوعة من الزيركون لإستعاضة الضروس : |
| Remainder of title | دراسة معملية |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Hebat Allah Mohammad Hassan Sayed , |
| Date of publication, distribution, etc. | 2020 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 125 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. | Aim: This study was designed to evaluate the retention strength of monolithic CAD/CAM PEEK crowns versus that of CAD/CAM monolithic 5Y-TZP zirconia crowns, both resin-cemented to epoxy resin die abutments resembling lower molar tooth, after thermomechanical aging simulating 3 months of clinical service. Methodology: 22 identical epoxy dies, resembling the preparation of a lower second molar abutment for full-coverage crown (4 mm height, 6{u00B0} axial convergence and 1 mm-thick deep-chamfer finish line), were produced by replicating one master stainless steel die via 22 vinylpolysiloxane impressions. The 22 epoxy dies were randomly equally distributed into 2 groups, 11 dies each; control group 2Zr3 to receive CAD/CAM milled monolithic 5Y-TZP crowns (KATANA{u2122} Zirconia ML), and intervention group 2P3 to receive CAD/CAM milled monolithic PEEK crowns (breCAM.BioHPP{u2122}). Two opposing, laterally projecting arms (mesial and distal) were included in the design of all crowns for the retention test. The fitting surfaces of all crowns of both groups were sandblasted with 110-æm alumina particles.All of the crowns of both groups were cemented over their corresponding epoxy dies using the hand-mixed dual-cured, self-adhesive resin cement (RelyX{u2122} U200 Clicker{u2122} Dispenser) (3-kg seating force). Samples were stored in a water incubator (37 {u00B0}C) for 24 hours; then, subjected to mechanical aging (37,500 cycles, 49 N load) with simultaneous thermocycling (300 cycles, 5-55 {u00B0}C, 12 s dwell time).Retention strength was evaluated through the pull-off test performed via a universal testing machine (UTM), by vertically pulling-up the crowns from their dies along their vertical axes.The mean dislodgement force (retention strength) for each group was calculated, and statistically compared using Student t-test. Statistical analysis was performed with three-way ANOVA. Pair-wise comparison of groups was made with the Tukey test. Pearson{u2019}s Chi-Square test was used to analyze the failure modes. Results: PEEK crowns group (P) has demonstrated statistically insignificant higher retention strength (171.28 N ± 26.30) than zirconia (Zr) crowns group (150.40 N ± 24.40).2Mixed3 failure mode was the predominant in both groups, followed by 2cement on-crown3 failure mode.Though, the material had a significant effect on the percentage of occurrence of failure modes |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Polyetheretherketone crowns |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Restoring molar teeth |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Zirconia crowns |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hesham Alansary , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lamia Kheiralla , |
| 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.2020.He.R | 01010110083835000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.09.09.M.Sc.2020.He.R | 01020110083835000 | 22.09.2023 | CD - Rom | 83835.CD |