Hello, Good daily oral care includes flossing and brushing your tongue. I suspect you have a dry mouth and your daily plaque may adhere aggressively to your teeth. Increase your amount of rinsing throughout the day. Biotene makes an assortment of products designed to help address a dry mouth. Make sure you are up to date with a dental dental exam and cleaning. You need to rule out any active infections such as an abscess or periodontal disease. Other systemic conditions may affect your oral condition. Some disorders include Gasrtic conditions such as GERD, acid reflux, sinus conditions such as post nasal drip or allergies and Diabetes. Do you have any difficulty with sleeping, snoring or mouth breathing. Your dentist can provide guidance and may suggest a visit to your physician for Badic blood tests. I hope that my suggestions are helpful and thank you for your inquiry.