Conversation: The conversation between human and AI assistant.
[|Human|] So my boyfriend had been waking up in the morning with brown stuff on his teeth and a little bit on the sides of his mouth. It doesnt smell, I asked him. He said it happens some morning. It he doesnt know what it is or anything of what could be causing it. It kinda worries me so Im looking around. What do you think could be happening,?
[|AI|]  Helloi have gone through your query.How's his oral hygiene?  Brush twice a day, flossing once a day?  Mouthwash?  How's his diet?  Any brown stuff during the day as well?  Smoking?  Alcohol?  Relevant medical history?  Last time he had a checkup or dental cleaning?There's alot of factors to consider.  Sometimes it can occur due to gingivitis.it can cause gums to swell and bleed and if mixed with your saliva at night the brown discoloration could stick to your teeth. It can be due to the salivas' viscosity also. Some people have thicker and discolored saliva which will stick to the teeth better. You may want to go to a dentist and get it checked out. Hope this ans helpsRegards