### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a question for a dentist . I have brownish black stains on my molars and it seems that all my teeth stain quite easily. I have excellent oral hygiene (brush, floss, fluoride mouth wash every day) but i seem to be very susceptible to staining. The dental hygienest and dentist tell me I have no cavities and my teeth are in great shape but tell me I have excessive staining, and then remove the stains during the cleaning. How can I remove these stains myself ad be proactive to keep them away in the future? Thanks!

### output:

Hello there.It's great to see you are taking great care of your oral hygiene. Your cleaning regime appears perfect from the information you provide. Here are some things to consider. 1- Whilst you say that you brush your teeth, how often do you brush? How long do you brush for? What technique are you using to brush? What kind of toothbrush are you using? You should be brushing twice a day minimum, using circular motions and not back and forth scrubbing motions for at least 2 minutes each time. You should then spit out the toothpaste but don't rinse. 2- What mouthwash are you using? Some of the best mouthwash products contain Chlorhexidine Gluconate. This is fantastic to preventing plaque accumulation and protecting against gum disease. But it promotes the uptake of staining and makes your teeth go yellow or brown. This is a superficial "extrinsic" stain and can be easily removed. To prevent this, either change your mouth wash or avoid eating and Chat Doctor. e. overnight). 3- What food are you eating? Curry, tea, wine, etc. are all food stuffs that can increase staining regardless of how good your brushing is. 4- Do you smoke? Smoking is a leading cause of staining, not to mention decay (due to xerostomia - 