My mouth has quite alot of mild dysplasia apparently. After my initial tumor was removed I was told that I wasn't (fortunately)a candidate for either radiation or chemo as neither worked on dysplasia. My surgeon only removes dysplasia when it moves from moderate to severe dysplasia. Mild dysplasia can often resolve itself. However, if your dysplasia is in a small localized spot I think removal would give you great peace of mind.

Catherine, SCC floor of mouth DX 2010,unclear margins, PET scan clear, no chemo or rad,biopsy in 9/2010, 2nd excision 10/2010 didn't get all carcinoma in situ; partial gloss & excis. right floor 2/2/2011 margins clear. Part.gloss-10/5/2011 sev dys clean marg. HPV neg. Don't smoke or drink. SCC floor of mouth left side 4/2016. Dysp excis. rt palate 7/2017 Part gloss sev dys lat marg 2/2019 Part gloss free flap rt neck disc 5/2020 Part gloss bilat neck disc 7/2020 33 rad 3 cis.