Magister Scientiae Dentium - MSc(Dent) (Prosthodontics)

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Browsing by Author "Faculty of Dentistry"

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    Disinfection procedures: effects on the dimensional accuracy of Gypsum casts
    (University of the Western Cape, 2007) Salih, Mayson; Wilson, V.J.; Osman, Yusuf I.; Dept. of Prosthodontics; Faculty of Dentistry
    The aim of the study was to assess the dimensional accuracy of Gypsum models following chemical disinfection of the impressions and to compare it with the accuracy of gypsum models exposed to microwave irradiation disinfection. Results indicated that the dimensional accuracy of the gypsum models disinfected in a microwave oven did not differ significantly from models in the control group. Except for models produced from SS white (SS White group, England) impressions where models irradiated in microwave exhibit significant improvement in the dimensional accuracy when compared with control group.
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    The effects of diferent reinforcements on the fracture toughness of provisional restorative materials
    (University of the Western Cape, 2006) Overturf, Jan Hendrik; Geerts, Greta; Dept. of Prosthodontics; Faculty of Dentistry
    One of the most critical aspects of successful crown and bridgework is temporary restorations. Failure of temporary restoratins often affects the patient's confidence and mau result in unscheduled appointments for repair. This study compared the the fracture toughness of two materials commonly used to fabricate provisional restorations, namely Coldpac, a polymethyl methacrylate and Protemp 3 Garant, a bis-acryl composite. It also compard the fracture toughness of the two materials when reinforced with stainless steel wire, glass fibers and polythylene fibers.