Now showing items 1-20 of 33

    • Adapting an undergraduate dental objectively structured clinical examination (OSCE) during COVID‑19 

      Maart, Ronel; Ahmed, Rukshana; Mulder, Riaan (Health and Medical Publishing Group, 2021)
      In the 5-year dentistry curriculum at the University of the Western Cape, South Africa (SA), prosthetic dentistry is presented as modules, starting in the 2nd year and culminating in the final module in the 5th year. Students ...
    • Application of lasers in orthodontics 

      Mulder, Riaan; Melman, Geoffrey; Karic, Vesna (South African Dental Association, 2017)
      Laser is the acronym for Light Amplification by Stimulated Emission of Radiation, a usage that dates back to approximately 50 years ago. In 1960, the first functioning laser was built by the American physicist Maiman ...
    • Are fissure sealants still relevant as a caries preventive measure? 

      Mulder, Riaan (South African Dental Association, 2016)
      The groundwork for fissure sealants was completed in 1955 and lead to the introduction in 1971 of the Nuva-Seal Fissure Sealant by L.D Caulk. Since caries predominantly affects the pits and fissures of the teeth of ...
    • Bio-active restorative materials as alternative pit and fissure sealants in pediatric and preventative dentistry: In vitro investigation 

      Perchyonok, Tamara; Mulder, Riaan (MedCrave, 2017)
      BACKGROUND: It has been more than 40 years since the pit and fissure sealants were first used clinically. During this time, pit and fissure sealants have been shown to be effective in reducing the risk of occlusal caries. AIM: ...
    • Biomaterials and designer functional applications in oral cavity 

      Perchyonok, Tamara; Mulder, Riaan (Nova Science Publishers, 2016-05-10)
      Dental biomaterials and natural products represent two growing research fields, revealing that plant¬derived compounds may play a role not only as nutraceuticals in affecting oral health but also in improving physicochemical ...
    • A call for action to safely deliver oral health care during and post COVID-19 pandemic 

      Mulder, Riaan; Farronato, Marco; Tadakamadla, Santosh Kumar (MPDI, 2020)
      The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak started just a couple of months ago and it grew rapidly causing several deaths and morbidities. The mechanism behind the transmission of the virus ...
    • Cavity preparation using hard tissue lasers in operative dentistry 

      Karic, Vesna; Mulder, Riaan; Melman, Geoffrey (South African Dental Association, 2017)
      A laser is a device that delivers coherent, monochromatic and collimated light as a form of energy. Most dental laser devices emit invisible light in the infrared portion of the electromagnetic spectrum. On May 7, 1997, ...
    • 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 aerosolized hydrogen peroxide fogging with a conventional disinfection product for a dental surgery 

      Sher, Marc; Mulder, Riaan (PMID, 2020)
      The study aimed to determine the efficacy of adding a 12% hydrogen peroxide dry hydrogen peroxide vapor fogger system as an additional layer of infection control in a dental surgery.
    • COVID-19 in dentistry - Ethical considerations 

      Maart, Ronel; Mulder, Riaan; Saadika, Khan (South African Dental Journal, 2020)
      The reach of Coronavirus Disease - 2019 (COVID-19) has even reached the ethical guidelines for good practice from the Health Professions Council of South Africa (HPCSA).1 The health care worker should carefully consider ...
    • COVID-19: The invisible risk to oral healthcare workers in dentistry 

      Mulder, Riaan (José Frantz, 2021)
      Oral healthcare workers (OHCW) include any professional who can work in a dental practice setting, for example dentists, dental hygienists, dental therapists, dental assistants and denturists. Dentistry, as a profession, ...
    • Determination of orthodontic bracket and tooth adaptation using an X-ray micro-computer tomography scanner 

      Fakir, Yaseen; Keanly, Colm; Mulder, Riaan (Elsevier, 2020)
      The determination of the orthodontic brackets’ adaptation to the curvatures of teeth is a difficult topic to study. The complexity arise due to the different designs of their fitting surfaces, margins and curvatures of ...
    • Extra-oral suction 

      Noordien, Naeemah; Mulder-van Staden, Suné; Mulder, Riaan (MDPI, 2023)
      Oral health care workers (OHCW) are exposed to pathogenic microorganisms during dental aerosol-generating procedures. Technologies aimed at the reduction of aerosol, droplets and splatter are essential. This in vivo study ...
    • In vitro analysis of techniques that alter the surface hardness of a glass ionomer restorative material 

      Mulder, Riaan (Original research, 2019)
      Glass ionomer cement as restorative materials are advantageous in pediatric restorative dentistry. The main advantages of GIC include fluoride release up to 50 μg/cm and a chemical adhesion to the tooth structure
    • In vitro analysis of techniques that alter the surface hardness of a glass ionomer restorative material 

      Mulder, Riaan; Noordien, Naeemah; Rossouw, Shaun (Jaypee Brothers Medical Publishers, 2019)
      Ab s t r A c t Aim: The aim of this in vitro study was to compare the eect of dierent manipulation techniques on the surface hardness of ChemFil Rock glass ionomer.Materials and methods: The changes in Vickers surface ...
    • In vivo study of aerosol droplets and splatter reduction in dentistry 

      Noordien, N.; Mulder-Van Staden, Sune; Mulder, Riaan (MDPI, 2021)
      Oral healthcare workers (OHCW) are exposed to pathogenic microorganisms during dental aerosol-generating procedures. Technologies aimed at the reduction of aerosol droplets and splatter are essential. This in vivo study ...
    • Introduction to dental lasers 

      Mulder, Riaan; Karic, Vesna; Melman, Geoffrey (South African Dental Association, 2016)
      It was Albert Einstein who in 1917 defined the theory of the Stimulated Emission of Radiation, developing and expanding on the work of Niels Bohr, who in 1913 had formulated the Spontaneous Emission theory. Einstein ...
    • Lasers in paediatric dentistry 

      Mulder, Riaan; Karic, Vesna; Melman, Geoffrey (South African Dental Association, 2016)
      Many clinicians will be faced with the un-cooperative paediatric patient presenting at their practices with a “fear of the unknown”. Establishing trust with these patients is essential in order to achieve a productive ...
    • Lasers in periodontics 

      Melman, Geoffrey; Karic, Vesna; Mulder, Riaan (Electronic Doctor (E-Doc) Publishers & SADA, 2017)
      Ablation has been described as the expansive vaporisation of tissue. In periodontal procedures the ablation capacity of the laser can be used for excision and incision of pathology. The Erbium doped lasers can be used ...