Tensile bond strength and microleakage of two different dowel systems using two different luting agents /
قوة رابطة الشد والتسرب الدقيق لنوعين مختلفين من الاوتاد باستخدام نوعين مختلفين من المواد اللاصقة
Raafat Ragheb Hanna ; Supervised Badawi AbouelMahasen Badawi , Hesham Ibrahem Elansary
- Cairo : Raafat Ragheb Hanna , 2005
- 121P : ill ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty Of Oral and Dental Medicine - Department Of Prosthodontics
This research was designed to determine the tensile bond strength and microleakage (after fatigue cyclic loading) of fiber reinforced composite dowels and zirconium dioxide dowels using the conventional zinc phosphate cement and the dentin - bonded resin cement Total number of fourty samples were classified randomly into two equal groupsGroup (1) for samples restored with fiber reinforced composite dowel (Easypost) and group (2) for samples restored with zirconium dioxide dowel (cosmopost) Each group was randomly subdivided into two equal subroubsSubgroup (A) using dentin bonded resin cement and subgroup (B) using the conventional zinc phosphate cementFinally each subgroup was devided randomly into two equal divisionsDivision (i) without core - build up that was tested for tensile bond strength and division (ii) with composite core build up that was subjected to fatigue cyclic loading prior to dye - penetration technique for microleakage assessment