Thesis (M.D.S.)--University of Adelaide, 1984. / Includes bibliographical references (leaves B[1]-B8).

Thesis( Masters degree(Dental Technology))--Peninsula Technikon, Cape Town, 2003 / This study explored the oral pathological conditions and related normal aberrations found within an edentulous sample group of the Western Cape of South Africa. The initial literature review concentrated on similar epidemiological surveys from a national and international perspective, from which a research framework was formulated and then applied to the chosen sample size. Statistical analysis revealed the mean age of the sample group as 57,3 +1- 1 years and that the male, female ratio was 1:2.16. Results indicated that the percentage of healthy individuals were 78%. Normal aberrations such as mobile alveolar ridge (flabby ridge) (2,6%), oral mucosal pigmentation (1,9%), chronic cheek chewing (1 %), torus mandibularis and palatinus (0,5%) had the highest incidence. Twenty three percent exhibited some sort of oral pathological condition such as denture stomatitis (7%), ulcerations (5,2%), angular cheilitis (1,8%), white lesions (4,4%), and denture-related hyperplasia (1,9%) were the most prevalent. Systemic diseases were recorded in 38,2% of patients: hypertension (22,7%), heart disorders (6,6%), diabetes mellitus (6,5%) and asthma (4,4%) were the most common. Individuals that exhibited oral pathoses were found to be wearing older dentures than individuals who replace their dentures more regularly. No significant difference was found between the age of the denture and the age of the patient. The empirical investigation revealed that the number of prominent oral conditions was low for the Western Cape of South Africa and could perhaps be incorporated into an educational module for dental technologists. A better understanding of such oral pathological conditions may aid communication and patient service between the parties involved. The concept of a more collaborative approach between the dentist and the dental technologists was discussed. Reference is made to a community service model that focuses more specifically on the needs of the poorer edentulous individuals of the Western Cape.

No description available.

Magister Scientiae Dentium - MSc(Dent) / Both light-cured (LC) and chemically-cured (CC) acrylic resin custom tray materials are used at the Oral Health Centre, Faculty of Dentistry, University of the Western Cape. At present, the CC acrylic is the standard for formal undergraduate teaching and training. The LC material is not part of routine didactic teaching as little evidence-based scientific information is available with regards to its properties and its usage in the clinical environment. Negative effects have caused researchers to focus on alternatives and to research for other materials with more advantageous properties. The objectives of this study was to determine the linear dimensional shrinkage and fracture toughness of light-cured acrylic custom tray materials and compare it to the chemically-cured type. Also to evaluate the acceptance of light-cured acrylic resin custom trays by undergraduate students. / South Africa

Magister Chirurgiae Dentium - MChD / 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. / South Africa

Magister Scientiae Dentium - MSc(Dent) / 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. / South Africa

This study evaluated differences in dental implant outcomes in patients with osteoporosis and their matched controls. Twenty-four patients, who received dental implants at the University of Toronto, were 60+ yrs and had osteoporosis at the time of implant placement, and their controls matched for age, sex and implant related features were examined clinically and radiographically. Clinical and demographic variables recorded at implant placement and follow-up examination, were analyzed. Implant survival rates of 95.1% and 100%, and success rates of 91.4% and 100% were noted in the osteoporosis and control samples respectively. All failures in the osteoporosis sample occurred in the maxilla of a single subject, raising suspicion that these were related to individual problems specific to this subject. Due to the paucity of adverse outcomes and with all the implant failures having occurred in one subject, no relationship of adverse outcomes with clinical and demographic variables could be analyzed.

This study evaluated differences in dental implant outcomes in patients with osteoporosis and their matched controls. Twenty-four patients, who received dental implants at the University of Toronto, were 60+ yrs and had osteoporosis at the time of implant placement, and their controls matched for age, sex and implant related features were examined clinically and radiographically. Clinical and demographic variables recorded at implant placement and follow-up examination, were analyzed. Implant survival rates of 95.1% and 100%, and success rates of 91.4% and 100% were noted in the osteoporosis and control samples respectively. All failures in the osteoporosis sample occurred in the maxilla of a single subject, raising suspicion that these were related to individual problems specific to this subject. Due to the paucity of adverse outcomes and with all the implant failures having occurred in one subject, no relationship of adverse outcomes with clinical and demographic variables could be analyzed.

No description available.

Thesis (M.D.S.)--University of Adelaide, Dept. of Dentistry, 1999. / Bibliography: leaves 284-317.