Microbiology and Pathology Quiz 5

Early supragingival plaque in a caries-free patient is dominated by which organism?

A facultative anaerobe is best described as a bacterium that:

Which microorganism is strongly associated with localized aggressive periodontitis in adolescents?

Which method reliably achieves sterilization (destruction of all forms of microbial life, including spores)?

Endotoxin is most closely associated with:

Oral hairy leukoplakia on the lateral tongue of an immunocompromised patient is most commonly associated with:

Which change is most indicative of reversible cell injury under light microscopy?

A myocardial infarct typically exhibits which type of necrosis?

Granulomatous inflammation is characterized by:

Epithelial dysplasia in oral mucosa differs from carcinoma in situ primarily by:

Which statement correctly distinguishes grading from staging of cancer?

Which gene is a classic tumor suppressor often mutated in many cancers, including oral SCC?

Which situation most strongly predisposes to pseudomembranous candidiasis (thrush)?

A key reason dental biofilms are more resistant to antimicrobial agents than planktonic bacteria is:

Radiation therapy to the head and neck increases the risk of osteoradionecrosis of the jaws mainly due to:

Which genus of spore-forming bacteria is commonly used as a biological indicator to monitor autoclave effectiveness?

Oral leukoplakia is best defined clinically as:

Salivary gland stones occur most commonly in which gland?

The acid-fast staining property of Mycobacterium species is due to:

A nonvital tooth with a chronic periapical lesion that is asymptomatic and shows a well-defined radiolucency at the apex is most likely: