Evaluation of strength of different resin materials used in overdenture / Submitted by Mohamed Ibrahim Abd El-Samie.

By:

Abd El-Samie, Mohamed Ibrahim [author.]

Material type: Text

TextLanguage: English Summary language: Arabic Publisher: 2021Description: 120, 4 pages : illustrations (mostly color) 29 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Other title:

تقييم قوة راتنجات مختلفة تستخدم في الطقم الفوقي [Added title page title]

Subject(s):

DDC classification:

22 617.69 A.M.E

Summary: Restoring limited inter-arch space with suitable material that fulfil the esthetic as well as the functional demands is a difficult process that requires good understanding of the clinical situation and precise management. Therefore, determining a suitable material that could be used to restore relatively small inter- arch spaces that offer reasonable esthetics as well as good functional strength was mandatory. This in vitro study was conducted to compare two different esthetic materials PEEK and ACETAL regarding their mechanical strength when used as Overdenture framework in a relatively small thickness. 120 specimens were prepared according to the American Society for Testing and Materials (ASTM) International standards and divided into two main groups according to the material, group (A) PEEK samples and group (B) ACETAL samples. Each group of 60 specimens was subdivided into three different groups (I, II, III) according to three different thicknesses (1, 1.5 and 2mm). Each group contains 20 identical samples, half of them were subjected to water sorption and the other half were left untouched. Then all specimens were loaded to failure in a Universal Testing Machine (UTM) Data were collected, calculated and analyzed using Student’s t test for independent samples. All PEEK samples recorded significantly higher flexural strength values on every thickness than Acetal samples. Also, it was found that water has no significant effect on PEEK samples in contrast to Acetal samples, which recorded higher flexural strength values on all tested samples after water exposure.

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Holdings
Item type	Current library	Collection	Call number	Status	Date due	Barcode
Thesis	Main library C4 THESIS	Dental (Prosthodontics )	617.69 A.M.E (Browse shelf(Opens below))	Not for loan		00016661

Supervisors : Dr Hesham Ebrahim Alam El Deen (Ass. professor of prosthodontics, Faculty of oral and dental medicine - FUE university), prof. Hamdy Abu El Fotoh Hamed (Professor of prosthodontics, Faculty of oral and dental medicine - Cairo university), DR. Ayman Shereif Fateen (Lecture of prosthodontics, Faculty of oral and dental medicine - FUE university)

Thesis (M.Sc.)-Future university in Egypt, Faculty of oral and dental medicine, Department of prosthodontics, 2021.

Includes bibliographical references.

Restoring limited inter-arch space with suitable material that fulfil the esthetic as well as the functional demands is a difficult process that requires good understanding of the clinical situation and precise management. Therefore, determining a suitable material that could be used to restore relatively small inter- arch spaces that offer reasonable esthetics as well as good functional strength was mandatory.
This in vitro study was conducted to compare two different esthetic materials PEEK and ACETAL regarding their mechanical strength when used as Overdenture framework in a relatively small thickness.
120 specimens were prepared according to the American Society for Testing and Materials (ASTM) International standards and divided into two main groups according to the material, group (A) PEEK samples and group (B) ACETAL samples. Each group of 60 specimens was subdivided into three different groups (I, II, III) according to three different thicknesses (1, 1.5 and 2mm).
Each group contains 20 identical samples, half of them were subjected to water sorption and the other half were left untouched. Then all specimens were loaded to failure in a Universal Testing Machine (UTM)
Data were collected, calculated and analyzed using Student’s t test for independent samples.
All PEEK samples recorded significantly higher flexural strength values on every thickness than Acetal samples. Also, it was found that water has no significant effect on PEEK samples in contrast to Acetal samples, which recorded higher flexural strength values on all tested samples after water exposure.

Text in English, abstracts in English and Arabic.

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