000			03163nam a22003257i 4500
999			_c12972 _d12972
005			20211102105723.0
008			211024s2021 ao||| bm|| 00| 0 eng d
040			_aEG-NcFUE _erda
041	0		_aeng _bara
082	0	4	_222 _a617.69 _bA.M.E
100	1		_933887 _aAbd El-Samie, Mohamed Ibrahim _eauthor.
245	1	0	_aEvaluation of strength of different resin materials used in overdenture / _cSubmitted by Mohamed Ibrahim Abd El-Samie.
246	1	5	_aتقييم قوة راتنجات مختلفة تستخدم في الطقم الفوقي
264		1	_c2021
300			_a120, 4 pages : _billustrations (mostly color) _c29 cm
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
500			_aSupervisors : 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)
500			_aThesis (M.Sc.)-Future university in Egypt, Faculty of oral and dental medicine, Department of prosthodontics, 2021.
504			_aIncludes bibliographical references.
520			_aRestoring 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.
546			_aText in English, abstracts in English and Arabic.
650		0	_aProsthodontic
650		0	_aBridges (Dentistry)
650		0	_aCrowns (Dentistry)
650		0	_aDentures
942			_2ddc _cTHESIS