Browsing Research Publications by Author "Mulder, Riaan"
Now showing items 1-17 of 17
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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 ... -
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, ... -
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 eect of dierent manipulation techniques on the surface hardness of ChemFil Rock glass ionomer.Materials and methods: The changes in Vickers surface ... -
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 ... -
Oral status of HIV-infected children aged 12 years or younger who attended a Paediatric Infectious Diseases Clinic in Cape Town
Mohamed, Nadia; Mathiba, Olorato Patience; Mulder, Riaan (Wiley-Blackwell, 2020)Children continue to suffer from the impact of the human immunodeficiency virus-acquired immunodeficiency syndrome (HIV/AIDS) pandemic. In Cape Town, these children receive medical care including antiretroviral therapy ... -
Prevalence of oral mucosal lesions in human immunodeficiency virus-infected children attending the Pediatric Infectious Diseases Clinic in Cape Town
Mulder, Riaan; Mohamed, Nadia; Mathiba, Olorato (Wiley, 2021)Objective: Investigation of the prevalence of oral mucosal lesions in human immuno-deficiency virus (HIV)-infected children undergoing highly active antiretroviral therapy (HAART).Materials and Methods: Cross-sectional ... -
South African statutory regulations for dental practices
Mulder, Riaan; Mulder-van Staden, S (SADA, 2018)The Constitution of the Republic of South Africa dictates that: "every person has the right to a working environment that is not harmful to their health nor well-being". The practitioner and/or health care facility as ... -
Towards bioactive containing restorative materials: from design to testing in vitro approach
Perchyonok, Tamara; Mulder, Riaan; Grobler, Sias Renier; Zhang, Shengmiao (Symbiosis, 2015)In any repair of a tooth with permanent restorative materials, the interface is always a sensitive region. The appearance of adhesive materials was a great step forward in dealing with the problems of this region and ... -
Towards bioactive dental restorative materials with chitosan and nanodiamonds: evaluation and application
Mulder, Riaan; Grobler, Sias Renier; Moodley, Desi; Perchyonok, Tamara (SciDoc Publishers, 2015)BACKGROUND/PURPOSES: Recently various articles showed beneficial effects of the addition of different the beneficial effect (bond strength and longevity) of the addition of different bioactive compounds towards dental ... -
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 ...