Colony morphologies, species, and biotypes of yeasts from thrush and denture stomatitis

Song, Xianmin; Sun, Jinglu; Støre, Geir; Hansen, B. Frode; Olsen, Ingar

doi:10.1080/00016350902992602

Cited by 7 publications

(8 citation statements)

References 33 publications

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“…Multiple colony morphologies may be associated with diverse oral Candida phenotypes in patients with thrush and denture‐related stomatitis 41 . In the present study, denture adhesives induced several C. albicans colony phenotypes that might be associated with virulence and adaptation processes 41 . Furthermore, microscopic observations revealed that several denture adhesives can induce vacuolisation of yeast cells.…”

Section: Discussionsupporting

confidence: 51%

“…Such phenotypic switching involves reversible and heritable switching between alternative cellular phenotypes, often distinguished by differences in microscopic and macroscopic morphology 40 . Multiple colony morphologies may be associated with diverse oral Candida phenotypes in patients with thrush and denture-related stomatitis 41 . In the present study, denture adhesives induced several C. albicans colony phenotypes that might be associated with virulence and adaptation processes 41 .…”

Section: Discussionmentioning

confidence: 99%

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The effect of denture adhesives on Candida albicans growth in vitro

et al. 2011

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Objective: Denture-wearing favours the growth of Candida. In view of the fact that many denture wearers regularly use adhesives to enhance denture retention, stability and function, the aim of this work was to study the effect of denture adhesives on Candida albicans growth in vitro. Materials and methods: The denture adhesives tested were CoregaÒ powder and Corega Ò strip. C. albicans growth curves were obtained in the presence or absence of a 1% solution of the denture adhesive diluted in Sabouraud broth. Macro-and microscopic morphological changes in C. albicans were analysed, as was microbial contamination of the denture adhesive. Results: Most of the denture adhesives studied induced morphological changes in C. albicans cells and colonies, but only two had any significant inhibitory effect on yeast growth. Kukident Ò cream markedly inhibited C. albicans growth in a concentration-dependent way, reducing the growth rate by 95%, whereas Corega Ò cream also inhibited C. albicans growth but in a non-concentration-dependent way, reducing the growth rate by 37%. In addition, denture adhesives available as powders had detectable microbial contamination. Conclusion: Some commercially available denture adhesives showed microbial contamination and some had significant inhibitory effect on C. albicans growth.

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Section: Discussionsupporting

confidence: 51%

Section: Discussionmentioning

confidence: 99%

The effect of denture adhesives on Candida albicans growth in vitro

et al. 2011

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“…It has also been hypothesized that the hyphal form of C. albicans can better adhere to and penetrate fissures on denture surfaces and is thus more invasive to the oral mucosa (Fig 5). 5,6 Song et al 59 recently characterized yeast isolates from patients with denture stomatitis; C. albicans was the predominant species. The authors noted that yeasts that colonized the dentures and mucosa of stomatitis patients formed colonies with diverse morphologies, while the same yeast species when present in healthy denture wearers formed colonies with smooth morphology 59 .…”

Section: Resultsmentioning

confidence: 99%

“… 5,6 Song et al 59 recently characterized yeast isolates from patients with denture stomatitis; C. albicans was the predominant species. The authors noted that yeasts that colonized the dentures and mucosa of stomatitis patients formed colonies with diverse morphologies, while the same yeast species when present in healthy denture wearers formed colonies with smooth morphology 59 . Bilhan et al reported a significantly higher presence of C. albicans hyphae among patients with denture stomatitis compared to healthy denture users without palatal inflammation 60 .…”

Section: Resultsmentioning

confidence: 99%

Epidemiology and Etiology of Denture Stomatitis

Gendreau

Loewy

2011

Journal of Prosthodontics

621

613

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Denture stomatitis, a common disorder affecting denture wearers, is characterized as inflammation and erythema of the oral mucosal areas covered by the denture. Despite its commonality, the etiology of denture stomatitis is not completely understood. A search of the literature was conducted in the PubMed electronic database (through November 2009) to identify relevant articles for inclusion in a review updating information on the epidemiology and etiology of denture stomatitis and the potential role of denture materials in this disorder. Epidemiological studies report prevalence of denture stomatitis among denture wearers to range from 15% to over 70%. Studies have been conducted among various population samples, and this appears to influence prevalence rates. In general, where reported, incidence of denture stomatitis is higher among elderly denture users and among women. Etiological factors include poor denture hygiene, continual and nighttime wearing of removable dentures, accumulation of denture plaque, and bacterial and yeast contamination of denture surface. In addition, poor-fitting dentures can increase mucosal trauma. All of these factors appear to increase the ability of Candida albicans to colonize both the denture and oral mucosal surfaces, where it acts as an opportunistic pathogen. Antifungal treatment can eradicate C. albicans contamination and relieve stomatitis symptoms, but unless dentures are decontaminated and their cleanliness maintained, stomatitis will recur when antifungal therapy is discontinued. New developments related to denture materials are focusing on means to reduce development of adherent biofilms. These may have value in reducing bacterial and yeast colonization, and could lead to reductions in denture stomatitis with appropriate denture hygiene.

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“…Essas espécies, porém, estão presentes em menor prevalência quando comparadas a C. albicans, não apresentando, segundo Odds (1997), um papel patológico relevante para a doença. Além da prevalência da forma hifal ser detectada na mucosa de pacientes com estomatite protética (WEBB et al, 1998;SONG et al, 2009), também há evidências de que C. albicans penetra e adere nas fissuras das superfícies de resina das próteses dentárias (WEBB et al, 1998;RAMAGE et al, 2004;GUSMÃO et al, 2011). …”

Section: Estomatite Protéticaunclassified

Resposta imune inata na estomatite protética: interação in vitro entre células epiteliais de palato humano e Candida albicans

Casaroto¹

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Autorizo, exclusivamente para fins acadêmicos e científicos, a reprodução total ou parcial desta tese, por processos fotocopiadores e outros meios eletrônicos DEDICATÓRIAAos meus queridos pais, Valdecir e Regina, pelo incentivo e esforço imensuráveis para que eu pudesse trilhar no caminho dos estudos; pelo apoio, correções e ensinamentos que formaram os alicerces de minha história; por toda dedicação, perseverança, carinho e amor com que conduziram minha educação.Ao meu querido esposo, Eduardo, pelo amor, confiança e cumplicidade. Por me amar incondicionalmente, me incentivar e me ensinar a cada dia que ser paciente é uma virtude. A você que pacientemente e, às vezes, risonhamente, entendeu minha ausência. Obrigada por ser esse anjo que Deus colocou em minha vida, estando sempre ao meu lado. Esta conquista é nossa! Carinhosamente ao meu irmão, Hugo, pela amizade e companheirismo. Por me ensinar a levar a vida de forma mais leve e divertida.À minha querida sogra, Lucilia, por toda ajuda e compreensão ao longo destes anos. Obrigada por ter proporcionado que minhas viagens e minha estadia em Bauru fossem menos preocupantes e mais leves. A ajuda da senhora facilitou minha caminhada e me deu forças para chegar até aqui.Muito obrigada! "Se vi mais longe foi por estar de pé sobre ombros de gigantes." Apoptose. β-defensina. Isaac Newton AGRADECIMENTOS ABSTRACTInnate imune response in denture stomatitis: in vitro interaction between human palatal epithelial cells and Candida albicansThe presence of the fungus Candida albicans in the microbial biofilm underlying maxillary prosthesis is related to an inflammatory reaction of the palatal mucosa, the denture stomatitis. As a component of the host innate defense, the oral epithelium has the ability to recognize and react to fungal factors in order to prevent the microrganism invasion. The aim of this study was to in vitro evaluate the direct

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Colony morphologies, species, and biotypes of yeasts from thrush and denture stomatitis

Cited by 7 publications

References 33 publications

The effect of denture adhesives on Candida albicans growth in vitro

The effect of denture adhesives on Candida albicans growth in vitro

Epidemiology and Etiology of Denture Stomatitis

Resposta imune inata na estomatite protética: interação in vitro entre células epiteliais de palato humano e Candida albicans

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