Stain, staining

meconium 779.84

port wine 757.32

tooth, teeth (hard tissues) 521.7

due to

accretions 523.6

deposits (betel) (black) (green) (materia alba) (orange) (tobacco) 523.6

metals (copper) (silver) 521.7

nicotine 523.6

pulpal bleeding 521.7

tobacco 523.6