000			05514namaa22004331i 4500
003			EG-GICUC
005			20260121120259.0
008			260117s2020 ua a|||frm||| 000 0 eng d
040			_aEG-GICUC _beng _cEG-GICUC _dEG-GICUC _erda
041	0		_aeng _beng _bara
049			_aDeposit
082	0	4	_a617.69
092			_a617.69 _221
097			_aM.Sc
099			_aCai01.09.09.M.Sc.2020.Om.R
100	0		_aOmar Hashem Kamal Mohamed, _epreparation.
245	1	0	_aRetention of mandibular implant supported overdentures using CM-LOC and locator attachment systems : _bA randomized in vitro study / _cby Omar Hashem Kamal Mohamed ; Supervisor Dr. Nouran Abd Al Naby, Dr. Nada Sherin El Khourazaty.
246	1	5	_aاستبقاء الاطقم الكاملة المدعومة بغرسات فى الفك السفلى باستخدام Locator و CM-LOC من الوصلات المستخدمة لاستبقاء دراسة معملية
264		0	_c2020.
300			_a101 pages : _billustrations ; _c25 cm. + _eCD.
336			_atext _2rda content
337			_aUnmediated _2rdamedia
338			_avolume _2rdacarrier
502			_aThesis (M.Sc.)-Cairo University, 2020.
504			_aBibliography: pages 86-100.
520		3	_aAim: Implant supported overdentures have proved to be a better treatment option compared to conventional dentures in treating edentulous jaws. The present study was carried out to compare the retention of two different types of attachments used to retain single implant supported mandibular overdenture using universal testing machine after mechanical aging that was done by chewing simulator. The two attachments used in this study were Locator and Cendres and Meteaux Locator (CM-LOC). Methodology: Ten epoxy resin models of completely edentulous mandible were constructed and prepared to receive a single implant in the midline area. Ten overdentures were constructed with steel rods fixed to the denture using auto polymerized acrylic resin at the geometric center, two attachment systems; Locator attachmrent with nylon matrix and Cendres &Meteaux Locator (CM-LOC) with a PEKK matrix were investigated, with each type of attachment, the pickup procedure consisted of attaching matrix to the fitting surface of the denture with self-cure acrylic resin. All of the overdentures were subjected to different chewing cycles 500 cycles = (3 month), 1000 cycles = (6 month), 1500 cycles = (9 month) and 2000 cycles = (12 month) , then retention was evaluated using universal testing machine.. Results: The Locator attachment have shown a decrease in retention when subjected to different chewing cycles (p=0.001), with pairwise comparison showing a statistically significant difference between baseline and 2000 cycles ( p=0.011), between 500 cycle and 2000 cycle ( p=0.024). While for the CM-LOC group there was a decrease in retention when subjected to 500, 1000, 1500 cylces ( p=0.001), and with a slight increase in retention after 2000 cycles. With pairwise comparisons there was statistically significant difference at 500 cycles = 3 month and 1500 cycles (9 month). Conclusion: Within in limitation of the present study in vitro study it can be concluded that both the Locator and CM-LOC attachment have shown acceptable retention values to support single implant mandibular retained overdentures. However both attachments have shown a decrease in retention when subjected to different chewing cycles , The CM-LOC attachment has shown significant better retention when compared to Locator attachment after 500 cycles .
520		3	_aاجريت هذه الرسالة لمقارنة القدرة الاحتياطية لنوعين مختلفين من الملحقات المستخدمة للاحتفاظ في الاطقم المدعومة بالزرعة الواحدة بواسطة ألة اختبار علمية بعد التقدم الميكانيكي الذي تم بواسطة جهاز محاكاة المضغ. بينما كانت مجموعة التدخل هي مجموعة CM-LOC وكانت مجموعة التحكم هيLOCATOR تم بناء نموذج ايبوكسي للفك السفلي عديم الاسنان تماماً وتجهيزه لتلقي زرعة واحدة في منطقة خط الوسط. تم بناء عشرة أطقم مفردة خمسة تحتوي على مصفوفة من النايلون وخمسة أخرى تحتوي على مصفوفة من PEEK ثم يتم قياس قيم الاحتفاظ عند خط الاساس باستخدام ألة اختبارعالمية ثم تعرضت الأطقم في كل مجموعة لدورات مضغ مختلفة 500 و 1000 و 1500 و 2000 دورة. تم قياس الاستبقاء طوال هذه الدورات لكلا المجموعتين.
530			_aIssues also as CD.
546			_aText in English and abstract in Arabic & English.
650		0	_aProsthodontics
650		0	_aالاستعاضه الصناعية
653		1	_aRetention Of Mandibular Implant _aSupported Overdentures _aCM-LOC And Locator _aAttachment Systems
700	0		_aNouran Abd Al Naby _ethesis advisor.
700	0		_aNada Sherin El Khourazaty _ethesis advisor.
900			_b01-01-2020 _cNouran Abd Al Naby _cNada Sherin El Khourazaty _dNoura Cheta _dMarwa Thabet _UCairo University _FFaculty of Dentistry _DDepartment of Prosthodontics
905			_aShimaa _eEman Ghareb
942			_2ddc _cTH _e21 _n0
999			_c177751