Time studies of the penetration of extracted human teeth by radioactive nicotinamide, urea, thiourea, and acetamide. I. Diffuse penetration from the enamel surface.
D000081:Acetamides; D000085:Acetates; D001345:Autoradiography; D003743:Dental Enamel; D006801:Humans; D009525:Niacin / Q000031:analogs & derivatives; D009536:Niacinamide; D013890:Thiourea; D013996:Time and Motion Studies; D014070:Tooth / Q000378:metabolism*; D014508:Urea / Q000378:metabolism*
D000081:Acetamides; D000085:Acetates; D009536:Niacinamide; D009525:Niacin; D014508:Urea; C030686:acetamide; D013890:Thiourea
ACETIC ACID/derivatives; NICOTINIC ACID/derivatives; RADIOAUTOGRAPHY; TEETH/metabolism; THIOUREA; UREA/metabolism