Browsing Faculty of Dentistry by Author "Osman, Yusuf Ismail"
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A comparative study to determine the shock absorption ability of two popular mouth guards available on the South African market
Mohamed, Nadia; Grobler, Sias Renier; Basson, N. J.; Osman, Yusuf Ismail; Mulder, Riaan (Electronic Doctor (E-Doc) Publishers & SADA, 2017)It is expected that most mouth guards will provide some level of protection to teeth. In this study a device was developed to measure the relative impact absorption of two different mouth guards (Proform, Type III ... -
Comparison of colour components between maxillary central incisors - an in vivo study
Moodley, Desi; Grobler, Sias Renier; Osman, Yusuf Ismail; Kotze, T.J.v.W. (South African Dental Association, 2015)Objectives: The purpose of this study was to determine the relationship of colour in the CIE L a b scale between the maxillary central incisors. Methods: The colour of the maxillary central incisors of 83 patients was ... -
Cytotoxicity of seven recent dentine bonding agents on mouse 3T3 fibroblast cells
Olivier, Annette; Grobler, Sias Renier; Osman, Yusuf Ismail (Scientific Research Publishing, 2012)Today it is generally accepted that most bonding agents are cytotoxic. In this study the relative cyto-toxicity of seven recent dentine bonding agents on mouse 3T3 fibroblast cells were investigated. Materials and Methods. ... -
Guidelines for the selection of tooth whitening products amongst those available on the market
Basson, Reneda; Grobler, Sias Renier; van Wyk Kotze, Theuns; Osman, Yusuf Ismail (South African Dental Association, 2013)Background: Several tooth whiteners are available on the market, and the ideal choice should be determined by ef ficacy and optimal clinical results. Objectives: The purpose of this study was to compare the reported ... -
Insights into the clinical effectiveness of whitening products. Dentist-supervised-at-home bleaching product (Opalescence PF). Whitening of darker teeth in contrast to the effects on relatively whiter teeth
Grobler, Sias Renier; Osman, Yusuf Ismail (2017)This study evaluated the success of the whitening of darker teeth by comparing the results of a tooth whitening programme in two groups, subjects with darker (A2 and darker) teeth and patients with whiter teeth. ... -
Volumetric change of flowable composite resins due to polymerization as measured with an electronic mercury dilatometer
Mulder, Riaan; Grobler, Sias Renier; Osman, Yusuf Ismail (Herbert Publications Ltd., 2013)BACKGROUND: To determine the total volumetric change and the relative speed of shrinkage of bulk fill flowable composites during polymerization. MATERIALS AND METHODS: A specially designed electronic mercury dilatometer ... -
The whitening effect of four different commercial denture cleansers on stained acrylic resin
Maart, Ronel Deidre; Kruijsse, H.; Osman, Yusuf Ismail; Moodley, Desi; Patel, Naren; Grobler, Sias Renier (South African Dental Journal, 2016)Denture hygiene and denture cleansers are very important for their antimicrobial effect and also in removing stain from the dentures. The purpose of this study was to determine the effectiveness of Steradent, Corega, ...