MARC details
| 000 -LEADER |
|---|
| fixed length control field |
05771ntm a2200349 i 4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
12102116 |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20231004094136.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
150118s2022 ua a f bm 000 0 eng | |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
EG-EULC |
| Transcribing agency |
EG-EULC |
| Description conventions |
rda |
| 041 0# - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| Language code of summary or abstract/overprinted title or subtitle |
ara |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
|---|
| Classification number |
617.69 |
| Item number |
S.M.A |
| Edition number |
22 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Shalaby, Mohamed Amir, |
| Relator term |
author |
| 9 (RLIN) |
34035 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Assessment of the effect of two different digital fabrication techniques on marginal and internal fit of interim fixed dental prosthesis / |
| Statement of responsibility, etc |
Submitted by Mohamed Amir Shalaby, (B.D.S. University of Sharjah (2012); Supervision by Prof. Ahmed Naguib Mohamed, Professor, Fixed prosthodontics Department, Faculty of Oral and Dental Medicine, Future University in Egypt, Prof. Hisham Ibrahim Al Ansari, Professor, Fixed Prosthodontic Department, Faculty of Dentistry, Cairo University, Dr. Mennatallah Mohie El Din Wahba, Lecturer, Fixed Prosthodontics Department, Faculty of Oral and Dental Medicine Future University in Egypt |
| 246 15 - VARYING FORM OF TITLE |
|---|
| Title proper/short title |
تقييم التلاؤم الهامشي والداخلي للجسور المؤقتة الطويلة والقصيرة المصنعة بتقنيتين مختلفتين |
| 264 #1 - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Date of publication, distribution, etc |
2022 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
vi, 88 pages, 4 pages : |
| Other physical details |
color illustrations; |
| Dimensions |
22 cm |
| 336 ## - CONTENT TYPE |
|---|
| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
|---|
| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
|---|
| Source |
rdacarrier |
| Carrier type term |
volume |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Supervision of Prof. Ahmed Naguib Mohamed, Professor, Fixed prosthodontics Department – Faculty of Oral and Dental Medicine Future University in Egypt<br/>Prof. Hisham Ibrahim Al Ansari, Professor, Fixed Prosthodontic Department – Faculty of Dentistry, Cairo University, Dr. Mennatallah Mohie El Din Wahba, Lecturer, Fixed Prosthodontics Department – Faculty of Oral and Dental Medicine Future University in Egypt |
| 502 ## - DISSERTATION NOTE |
|---|
| Dissertation note |
Thesis (M.Sc.)-Future University in Egypt, Faculty of Oral and Dental Medicine, Department of Fixed prosthodontics Department, 2022. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc |
Includes bibliographical references. |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc |
Interim restoration provides esthetics and function for a specific time until the<br/>permanent restoration is fabricated. It should maintain the biological,<br/>mechanical, and esthetic principles to protect the pulp from any irritation, to<br/>preserve the periodontal health, and to maintain occlusal compatibility. The<br/>interim materials fabricated with CAD/CAM technologies exhibit high<br/>mechanical properties, color stable, and allow better fit integrity by<br/>eliminating polymerization shrinkage.<br/>Nissin dental model with missing upper left first premolar and upper left first<br/>molar, and upper right central incisor, upper right canine, and upper right first<br/>molar was used. The model was scanned using laboratory scanner, and the<br/>scanned file was saved as pre-operative STL format. Following that, the<br/>abutments were prepared using the CNC milling machine to maintain ideal<br/>standardization of the preparations. Then the prepared abutments were<br/>scanned again using the laboratory scanner, and the scanned file was saved as<br/>post-operative STL format. After scanning, the design of the restorations were<br/>chosen from the software library and adapted to the pre-operative STL file in<br/>order to be fabricated using the additive and subtractive technologies.<br/>A total of 24 interim bridges fabricated by different CAD/CAM technologies were<br/>used in this current in vitro study. The specimens were divided into two groups<br/>according to the fabrication method and span length; Group1 (n=12), 6 short span<br/>bridges were fabricated by additive technology, and 6 short span bridges<br/>fabricated by subtractive technology. Group II (n=12) 6 long span bridges were<br/>fabricated by additive technology, and 6 long span bridges fabricated by<br/>subtractive technology.<br/>Finally the fabricated bridges were scanned using the laboratory scanner and<br/>superimposed on the post-operative STL file using the Geomagic software in<br/>order measure the marginal and internal fit along the mesio-distal and buccolingual<br/>directions.<br/>The results showed that the fabrication process of the additive technology of<br/>the internal fit of long span bridge had a statistically significant effect<br/>compared to subtractive technology. The additive technique showed better fit<br/>in the the bucco-lingual direction and mesio-distal direction, with values of<br/>40.5 μm and 73.4 μm in the bucco-lingual direction compared to the<br/>subtractive technique, and 62.3 μm and 91 μm in the mesio-distal direction.<br/>Furthermore, the internal fit of the short span bridges fabricated with additive<br/>technology showed statistically significant difference only in the buccolignual<br/>direction, with values 39 μm compared to 54.4 μm in the subtractive<br/>technique. By contrast, the span length influenced the internal fit in the<br/>subtractive technique which has led to a statistical significant difference.<br/>Regarding the effect on fabrication method on the marginal fit in the long<br/>span bridges, there was no statistical difference between the two technologies.<br/>On the other hand, regarding the span length, there was statistically<br/>significant difference between the fabrication technologies, where the additive<br/>technology exhibited lower mean values in the marginal area. In the short<br/>span bridges, the mean marginal fit of the additive technology was 57.7 μm<br/>whereas in the short span of the subtractive technology was 35.1 μm,<br/>indicating a statistically significant difference. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English, abstracts in English and Arabic. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Prosthodontics |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Bridges (Dentistry) |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Crowns (Dentistry) |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Dentures |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
|---|
| Materials specified |
DSpace electronic resources |
| Uniform Resource Identifier |
<a href="http://repository.fue.edu.eg/xmlui/handle/123456789/5779">http://repository.fue.edu.eg/xmlui/handle/123456789/5779</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Thesis |
| Source of classification or shelving scheme |
Dewey Decimal Classification |