Browsing Research Articles (Oral Pathology and Oral Biology) by Title

Browsing Research Articles (Oral Pathology and Oral Biology) by Title

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  • Different methods of cell quantification can lead to different results : a comparison of digital methods using a pilot study of dendritic cells in HIV-positive patients 
    Fernandes, Diego Tetzner; Van Heerden, Willem Francois Petrus; Prado Ribeiro, Ana Carolina; Brandao, Thais Bianca; De Mello, Evandro Sobroza; Rivera, Cesar; Van Heerden, Marlene B.; Gondak, Rogerio; Santos- Silva, Alan Roger; Vargas, Pablo Agustin; Lopes, Marcio Ajudarte (Medicina Oral S.L., 2020-05)
    BACKGROUND : Although new digital pathology tools have improved the positive cell quantification, there is a heterogeneity of the quantification methods in the literature. The aim of this study was to evaluate and propose ...
  • Diffuse gingival enlargement with stromal calcifications occurring in a background of amelogenesis imperfecta - an oral medicine case book 
    Heyl, E.; Robinson, Liam; Kotze, Leande; Van Heerden, Willem Francois Petrus (South African Dental Association, 2020-09)
    A 12-year-old female patient presented with diffusely enlarged fibrous gingivae, enamel hypoplasia, an anterior open bite and impacted permanent maxillary canines. The patient's mother reported that the child had an ...
  • The ‘digital access divide’ at a South African dental school – a cross-sectional study - Part 1 
    Postma, Thomas Corne; Sykes, Leanne M.; Uys, Andre; Brandt, Paul Dieter; Crafford, Elmine (South African Dental Association, 2020-08)
    This study sought to investigate the digital divide, from an access perspective, of dental students at the University of Pretoria. Second to final year students (n= 218 (87.2% response rate) completed a custom-designed survey ...
  • Distribution and frequency of salivary gland tumours : an international multicenter study 
    Alsanie, Ibrahim; Rajab, Shahad; Cottom, Hannah; Adegun, Oluyori; Agarwal, Reshma; Jay, Amrita; Graham, Laura; James, Jacqueline; Barrett, A. William; Van Heerden, W.F.P. (Willem Francois Petrus); De Vito, Mariano; Canesso, Alessandra; Adisa, Akinyele Olumuyiwa; Akinshipo, Abdul-Warith Olaitan; Ajayi, Oluseyi Folake; Nwoga, Mark Chukwuemeka; Okwuosa, Chukwubuzor Udokwu; Omitola, Olufemi Gbenga; Orikpete, Efetobo Victor; Soluk-Tekkesin, Merva; Bello, Ibrahim O.; Qannam, Ahmed; Gonzalez, Wilfredo; Perez-de-Oliveira, Maria Eduarda; Santos-Silva, Alan Roger; Vargas, Pablo Agustin; Toh, Eu-Wing; Khurram, Syed Ali (Springer, 2022-12)
    BACKGROUND : Salivary gland tumours (SGT) are a relatively rare group of neoplasms with a wide range of histopathological appearance and clinical features. To date, most of the epidemiological studies on salivary gland ...
  • Distribution of dendritic cells in AIDS-associated oral Kaposi’s sarcoma 
    De Caceres, Cinthia Veronica Bardalez Lopez; Vargas, Pablo Agustin; Sanchez-Romero, Celeste; Bunn, Belinda Kathleen; Van Heerden, Willem Francois Petrus; Fonseca, Felipe Paiva (Fundação Odontológica de Ribeirão Preto, 2019)
    The aim of this study was to determine if the distribution of Langerhans cells (LC) and interstitial dendritic cells (IDC) is altered in AIDS-associated oral Kaposi’s sarcoma when compared to HIV-negative highly vascular ...
  • DNA-Ploidie und proliferative Aktivität bei Speicheldrüsentumoren 
    Driemel, O.; Kraft, K.; Hemmer, J. (Springer, 2007-08)
    Mithilfe hoch-auflösender DNA-Durchflusszytophotometrie wurden DNA-Ploidie und S-Phasenfraktion (SPF) bei 279 Speicheldrüsentumoren bestimmt. Alle 229 benignen Neoplasien waren diploid; 12 von 50 malignen Tumoren wiesen ...
  • Dominant genetic aberrations and coexistent EBV infection in HIV-related oral plasmablastic lymphomas 
    Boy, Sonja Catharina; Van Heerden, Marlene B.; Babb, Chantal; Van Heerden, Willem Francois Petrus; Pascale, Willem (Elsevier, 2011-09)
    We present common cytogenetic features in the largest cohort of plasmablastic lymphoma (PBL) of the oral cavity published to date. This cohort included 45 patients, 32 of whom had a known HIV status, of which 31 were HIV ...
  • Double gemination or fusion of a permanent mandibular second molar : a case report 
    Buchanan, Glynn Dale; Tredoux, Sheree; Schouwstra, Ciska-Mari; Nel, Chane; Gamieldien, Mohamed Yasin (Quintessence Publishing Company, 2021)
    Gemination and fusion are developmental conditions affecting the shape of teeth in both primary and permanent dentition. A 12-year-old girl presented for clinical assessment and the examination revealed an unusually shaped ...
  • EBV-positive mucocutaneous ulcer of the oral cavity associated with HIV/AIDS 
    Bunn, Belinda Kathleen; Van Heerden, Willem Francois Petrus (Elsevier, 2015-03)
    OBJECTIVE : To present two cases of Epstein-Barr virus (EBV)-positive mucocutaneous ulcer of the oral mucosa in association with human immunodeficiency virus infection. STUDY DESIGN : Two recently diagnosed cases of ...
  • Effect of 2-methoxyestradiol treatment on early- and late-stage breast cancer progression in a mouse model 
    Peta, Kimberly; Durandt, Chrisna; Van Heerden, M.B. (Marlene); Joubert, Anna Margaretha; Pepper, Michael Sean; Ambele, Melvin Anyasi (Wiley, 2023-10)
    The prevalence of breast cancer (BC) continues to increase and is the leading cause of cancer deaths in many countries. Numerous in vitro and in vivo studies have demonstrated that 2‐methoxyestradiol (2‐ME) has ...
  • The effect of medium supplementation and serial passaging on the transcriptome of human adipose-derived stromal cells expanded in vitro 
    Dessels, Carla; Ambele, Melvin Anyasi; Pepper, Michael Sean (BMC, 2019-08)
    BACKGROUND: For adipose-derived stromal cells (ASCs) to be safe for use in the clinical setting, they need to be prepared using good manufacturing practices (GMPs). Fetal bovine serum (FBS), used to expand ASCs in vitro ...
  • Endodontic treatment of dentin dysplasia type I D 
    Buchanan, Glynn Dale; Tredoux, Sheree; Nel, Chane; Gamieldien, Mohamed Yasin (Wiley, 2021-08)
    Dentin dysplasia (DD) Type I is a developmental condition affecting dentin, inherited in an autosomal‐dominant pattern or occurring due to a new mutation. Whilst the crowns of DD Type I affected teeth appear clinically ...
  • Epidemiology of oral squamous cell carcinoma 
    Abram, Muhammed Hanif; Van Heerden, Willem Francois Petrus; Rheeder, Paul; Girdler-Brown, B.V. (Brendan); Van Zyl, Andre W. (South African Dental Association, 2012-11)
    The National Cancer Registry (NCR) of South Africa publishes the pathology-based cancer incidence in the country and is the main cancer data source. The data published by the NCR have been used extensively in the ...
  • Epithelioid haemangioma (angiolymphoid hyperplasia with eosinophilia subtype) involving the vermillion border of the lower lip 
    Robinson, Liam; Lebaka, C.S. (Chidinyane); Van Heerden, Willem Francois Petrus (Wiley, 2022-02)
    Epithelioid vascular tumours include benign epithelioid haemangioma (EH) and epithelioid angiomatous nodule, low‐grade malignant epithelioid haemangioendothelioma and high‐grade epithelioid angiosarcoma. These tumours share ...
  • Estimating age and the probability of being at least 18 years of age using third molars : a comparison between Black and White individuals living in South Africa 
    Uys, Andre; Bernitz, Herman; Pretorius, Samantha; Steyn, M. (Springer, 2018-09)
    Third molar development of 705 White and 563 Black South African individuals aged between 15 and 25 years was assessed from panoramic radiographs obtained from the School of Dentistry, University of Pretoria, South Africa. ...
  • Estimating age in black South African children 
    Uys, Andre; Fabris-Rotelli, Inger Nicolette; Bernitz, Herman (South African Dental Association, 2014-03)
    Forensic dentists are frequently required to determine the age at death of unidentified skeletons, or to age live individuals who have no record / documentation of their chronological age. In order to be of the greatest ...
  • Evaluation of radiation awareness among oral health care providers in South Africa 
    Vilborn, Piret; Uys, Andre; Yakoob, Zarah; Cronje, Tanita (South African Dental Association, 2021-04)
    AIMS AND OBJECTIVES : The aim of this study was to assess the awareness of oral health care providers and dental students regarding radiation safety, protection and legislation pertaining to dental radiography in South ...
  • Expression of mucins in salivary gland mucoepidermoid carcinoma 
    Robinson, Liam; Van Heerden, Marlene B.; Ker-Fox, Jason G.; Hunter, K.D. (Keith); Van Heerden, Willem Francois Petrus (Springer, 2021-06)
    Mucoepidermoid carcinoma (MEC) is the most common malignant salivary gland tumour in both adults and children. Histological grading of MEC is subjective, but plays an important role in predicting patient prognosis. Epithelial ...
  • Familial florid cemento-osseous dysplasia : a report of three cases and review of the literature 
    Nel, Chane; Yakoob, Zarah; Schouwstra, Ciska-Mari; Van Heerden, Willem Francois Petrus (British Institute of Radiology, 2021-01)
    Familial cases of benign fibro-osseous lesions of the jaws are rare and have been described under numerous terms including familial gigantiform cementoma, multiple cemento-ossifying fibromas, sclerotic cemental masses and ...
  • FHIT RNA and protein expression in oral squamous cell carcinomas 
    Van Heerden, Willem Francois Petrus; Swart, Theuns J.P.; Robson, Brenda A.; Engelbrecht, Susan; Van Heerden, Marlene B.; Janse van Rensburg, Estrelita; Huebner, K. (International Institute of Anticancer Research, 2001-07)
    BACKGROUND: To investigate the possible role of FHIT, a possible tumour suppressor gene, in oral carcinogenesis, we examined 17 oral squamous cell carcinomas (OSCCs) for genetic alterations. MATERIALS AND METHODS: Fresh ...