Would smooth oral hairy leukoplakia (unconfirmed) appear 4 months after possible hiv exposure? perio said looked like regular leukoplakia . scared.

Biopsy it.: Any lesion is best diagnosed with an actual biopsy and not a visual guess. Then you know exactly what you have and what precautions or treatment is indicated. Don't be scared, just have it biopsied. Personally, i think it's better to know than to worry about possibilities. If your periodontist doesn't want to have it biopsied, ask why and consider seeing an oral surgeon for a second opinion.

Leukoplakia=Unknown: Leukoplakia is a clinical description of a "white" tissue--not a diagnosis. Leukoplakia is common after exposure to several viruses. See your dentist for a biopsy and diagnosis.