School of Oral Health Sciences
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Item Demographic profile of patients who present for emergency treatment at Wits’ Dental School(1997) Mani, S. P.; Cleaton-Jones, P. E.; Lownie, J. F.The faculties of dentistry and medicine at the University of the Witwatersrand will soon amalgamate into a faculty of health sciences. To help plan service provision a demographic profile was determined for 500 patients who attended for emergency treatment in the dental faculty over all four seasons. Mean daily rates were Autumn 7.7, Winter 8.8, Spring 7.8 and Summer 3.3. Most patients (45 per cent) arrived by car, 23 per cent came by bus while 19% walked to the dental school. Over three-quarters (77 per cent) came directly from home and the same proportion had endured symptoms for more than 48 hours. Many (60 per cent) had been treated previously at the dental school of whom 31 per cent had received this within the previous month. No less than 85 per cent had no regular dentist. A third of patients had no symptoms, 26 per cent had chronic pain and in 10 per cent the pain was acute in onset. The most frequent treatments were temporary restorations (39 per cent) and pulp extirpation (34 per cent). An irregular daily work load, together with endurance of symptoms by patients, indicates that an emergency service Monday to Friday during normal working hours is adequate.Item Should impacted third molars be removed? A review of the literature(1993) van der Linden, W. J.; Lownie, J. F.; Cleaton-Jones, P. E.Item Hepatitis-B virus infection and the dental profession: a survey in the Witwatersrand area(1981) Lownie, J. F.; Cleaton-Jones, P. E.; Struthers, P. J.; et al.Item Nerve degeneration within the dental pulp after segmental osteotomies in the baboon (Papio ursinus)(1996) Lownie, J. F.; Cleaton-Jones, P. E.; Fatti, L. P.Following dentofacial surgical procedures, teeth in segments often do not sense thermal or electric stimuli. This study was undertaken to assess changes in the neural component of the dental pulp after posterior maxillary and mandibular segmental osteotomies, with or without interpositional autogenous bone grafting, in 26 Chacma baboons. Innervation was assessed histologically immediately after operation, and at 3, 6, 12 and 18 months. Statistically significant differences were present between the experimental and control groups. Even after 18 months no nerves were present in any of the mandibular teeth. In maxillary teeth, 50 per cent had demonstrable nerves in the graft group and 40 per cent in the no graft group. As nerve degeneration was present in the experimental teeth, patients should be warned of possible change in tooth sensibility, following these operations. Careful post-operative follow up for long periods in humans following dentofacial surgical procedures is thus essential.Item A clinical appraisal of various aetiological factors involved in dry socket (Fibrinolytic Alveolitis)(1984) Bischoff, P. J.; Lownie, J. F.; Cleaton-Jones, P. E.Item An analysis of fractures of the facial skeleton in three populations in the Johannesburg urban area(1985) Beaumont, E.; Lownie, J. F.; Cleaton-Jones, P. E.; et alItem Reasons for tooth loss in Blacks on the Witwatersrand(1986) Shakenovsky, B. N.; Lownie, J. F.; Cleaton-Jones, P. E.Item The effect of Ibuprofen (Brufen®) following the removal of impacted third molar teeth(1983) Garwood, A. J.; Lownie, J. F.; Cleaton-Jones, P. E.