On- going secretion of fluid from under a tooth that is thick and causes a lot of plaque. No associated pain or soreness. Started after difficult, nearby tooth extraction almost one year ago. Make a bad taste in mouth and makes food taste very bad. Both regular dentist and oral surgeon who removed the tooth say they cannot see anything in the month and it seems like they do not believe me. Brushing and water-pick with mouthwash used twice a day for 10-20 minutes does not eliminate. Cannot find similar symptom on the Internet or on websites of specialists  in the dental field.