Hello !
As pointed previously , this seems like a harmless , asymptomatic lesion.
You should be worried about any white spot lesions , especially if you are a chronic tobacco user /indulge in smoking /pan chewing .
Also since you share your intraoral picture , I'd like to point that you should definitely get cleaning, finishing and polishing of your teeth.
Will improve your hygiene and reduce any risk of lesion / improve gum health etc.
Next Steps
Get scaling with finishing and polishing done
Health Tips
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