Browsing by Author "Peck, Mogammad T."

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    In vitro antimicrobial comparison of three commercially available chlorhexidine-based oral rinses
    (South African Dental Association, 2016) Abdalrahman, Basheer Mohamed; Holmes, Haly; Peck, Mogammad T.; Basson, Nicolaas
    INTRODUCTION: Commercially available chlorhexidine (CHX) formulations differ in their CHX concentrations (0.2% and 0.12%) as well as in various additives including alcohol, antimicrobials such as cetylpyridinium chloride and antidiscolouration chemicals such as ascorbic acid and sodium metabisulphite. AIMS AND OBJECTIVES: To compare in vitro the antimicrobial efficacies of three different CHX preparations (Corsodyl ®, Curasept® and GUM® Paroex®) using 0.2% and 0.12% CHX concentrations as controls METHODS: A disk diffusion test was performed using pure cultures of the organisms Streptococcus mutans and Candida albicans, and mixed cultures (facultative and strict anaerobes) prepared from oral rinse samples of 14 study participants. The means and standard deviations of the diameters of inhibition zones were calculated. RESULTS: A statistically significant difference (p value = 0.0001) was found only in Candida albicans cultures between the mean inhibition zones of the CHX preparation disks. Pure CHX preparations and Corsodyl® showed higher antifungal efficacy than Curasept® and GUM® Paroex Conclusion: Both CHX preparations (0.12% and 0.2%) and the 0.2% CHX preparation containing alcohol (Corsodyl®) have more potent antifungal properties against C. albicans than alcohol-free 0.12% CHX preparations such as Curasept® and GUM® Paroex®.
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    An in-vitro analysis of the antimicrobial efficacy of herbal toothpastes on selected primary plaque colonizers
    (iMD Publishers, 2011) Peck, Mogammad T.; Africa, Charlene W.J.; Stephen, Lawrence X.G.S.; Marnewick, Johan; Majeed, Abdul
    Plaque associated oral disease affects a considerable portion of the population and is considered one of the major causes of tooth loss. In most cases toothbrushing only removes a limited amount of dental plaque and other chemical agents are required to reduce the bacterial load. Aims & objectives: The purpose of study was to determine whether there was any significant difference in the antimicrobial activity of 4 herbal toothpastes against cultures of 3 primary plaque colonizers. Methods: A total of 5 toothpastes were tested for their antimicrobial efficacy against Streptococcus mutans (NCTC 10920), Streptococcus sanguinis (NCTC 10904) and a non-specific α-heamolytic streptococcus by agar diffusion method. The data were collected and analysed using one way ANOVA and Tukey’s multiple comparison test significant at p<0.05. Results: Dentazyme® herbal toothpaste showed the greatest ability to inhibit bacterial growth for all the tested organisms (p<0.05). Nature Fresh had the lowest potential for antimicrobial activity. Conclusions: Dentazyme® Herbal toothpaste was the only herbal toothpaste to inhibit the growth of all the bacteria tested and had similar antimicrobial efficacy to a triclosan containing toothpaste (Colgate® Total®).
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    Oral medicine case book 53: radiation - induced xerostomia
    (South African Dental Association (SADA), 2013) Cheung, Tik; Peck, Mogammad T.; Dreyer, Wynand P.
    A 76-year old male presented at the Oral Medicine Clinic, complaining of a persistent feeling of a dry mouth, subsequent to having undergone surgery, chemotherapy and radiation therapy for nasopharyngeal carcinoma, 18 months previously. Other than the cancer, he had no systemic problems of note and was otherwise in good physical health. Upon further questioning, the patient reported that the dry mouth condition was affecting his quality of life and that he was losing weight due to difficulty in eating. He further emphasised that his mouth felt dry within five minutes of rinsing his mouth with the palliative agents suggested by his dentist and oncologist. The regimen he followed to relieve his symptoms included glycerine BP oil, Candacide© (a nystatin containing product), Biotene© mouth spray and mouthrinse (these products contain lactoperoxidase, glucose oxidase, lysozyme and lactoferrin), Orbit© sugar free gum and an increased frequency of water intake.
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    Oral medicine case book 68: Oral ulceration caused by rifampicin-resistant tuberculosis
    (South African Dental Association, 2015) Peck, Mogammad T.; Hille, Jos; Snyman, A.; Dreyer, Wynand P.
    A 53-year old female was referred by her local general medical practitioner to an oral medicine specialist for the management of a persistent ulcer on the left side of her tongue. The lesion had been present for at least three months and was not responding to treatment by topical antiseptic agents. The earlier removal of a molar in close proximity to the lesion, in an attempt to exclude the possibility of traumatic ulceration, had also yielded no beneficial effects. Upon examination, the patient appeared clinically healthy but presented with a history of emphysema due to chronic cigarette smoking. The emphysema was currently being managed by oral inhalation steroids. Even though smoking cessation had previously been advised, she failed to comply and was currently still smoking more than 10 cigarettes per day.
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    Platelet - Rich Fibrin (PRF) - The effect of storage time on platelet concentration
    (South African Dental Association, 2015) Peck, Mogammad T.; Hiss, Donavon; Stephen, L.; Satti, A.; Majeed, Abdul
    The aim of this study was to determine whether storage time had a significant effect on the platelet concentration of platelet-rich fibrin (PRF). Three blood samples were drawn from each participant into a sterile blood sampling tube. Two of the blood samples were centrifuged to form PRF. The third non-centrifuged sample was used to measure the baseline blood platelet concentration. After PRF had formed, it was removed from the respective test tubes at different time intervals i.e. immediately after centrifugation (Group A) and after 60 min of storage time in the blood collecting tube (Group B). The residual blood from each group was tested for platelet concentration and compared with the baseline reading (as an indirect measure of the platelet concentrate of PRF). The PRF produced in Group A (PRF A) had a mean platelet concentration of 274 + - 57.8 X 109/L, whereas the PRF of Group B (PRF B) was 278 + - 58.2 X 109/L. A statistically significant difference was seen between the groups (p < 0.001).