Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain
metallic taste in mouth after placement of temporary crown that is lasting since 2 months is not due to the adhesive used in sticking the crown while it can be due to causes like any tooth or gum related infections, side effects of medication like
Celexa can be a cause but as you are off it since more than a month, this cause also gets excluded..
It can be due to causes like
dry mouth,
post nasal drip,
acid reflux, respiratory infections etc..
Consult a Physician and get evaluated and a thorough clinical examination and investigations as per suspected cause can help in diagnosis and treated accordingly..
As of now you can gargle with flavoured antiseptic mouthwash containing Lignocaine..
Chew flavoured sugarfree chewing gums..
Drink plenty of water..
Once the cause is diagnosed, treatment of the same will help in resolving the symptoms..
Hope this information helps..
Regards.