Dental OSCE (Objective Structured Clinical Examination) Practice Exam

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Where are leukoplakias commonly found?

On the floor of the mouth
On the buccal mucosa
On the tongue or foci
On the gingiva

The correct answer is: On the tongue or foci

Leukoplakias are white patches that can develop on the mucous membranes of the oral cavity as a result of hyperkeratosis or other changes. They are commonly associated with irritation or trauma, and they can appear in various locations within the mouth. The tongue is one of the most frequent sites for leukoplakias, particularly on the ventral (underneath) surface and the lateral borders. This predisposition to occur on the tongue or specific foci can be influenced by factors such as smoking, alcohol consumption, and chronic irritants, which contribute to the development of lesions in these areas. While leukoplakias can occur on the floor of the mouth, buccal mucosa, and gingiva, the tongue is recognized as a notable site where these lesions can manifest prominently. The differentiation in location is important for clinical assessment and management, with the tongue being a more common site of concern due to its exposure and the potential for dysplastic changes.