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Candidabiotypes in patients with oral leukoplakia and lichen planus

✍ Scribed by Verónica Lipperheide; Guillermo Quindós; Yolanda Jiménez; José Pontón; José Vicente Bagán-Sebastián; José Manuel Aguirre

Publisher
Springer Netherlands
Year
1996
Tongue
English
Weight
700 KB
Volume
134
Category
Article
ISSN
0301-486X

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✦ Synopsis

Prevalence of yeasts in 35 leukoplakia and 34 oral lichen planus patients was compared with that observed in persons without oral diseases. Serotype and morphotype were determined on Candida albicans isolates. Yeasts were isolated from the oral cavity specimens of 43.7% of the patients. C. albicans (serotype A) was the predominant species (76% in leukoplakia, 88.2% in lichen planus and 60.8% in healthy persons). Sixteen morphotypes were encountered on malt extract agar, being 732, 733, 734, 753 and 754 the most frequently found. Morphotypes SP1N and SP1Y were the most common on Sabouraud-trypheniltetrazolium agar (68.4% of the isolates from leukoplakia and 73.3% from lichen planus, but only 46.6% of the isolates from healthy oral mucosa showed SP 1N morphotype). Presence of oral lesions was associated with a marked reduction in the yeast species and C. albicans biotypes, suggesting that C. albicans and particularly some of its biotypes, show a high potential of adaptation to the changes associated with the development of oral leukoplakia and lichen planus.

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