Daily twice brushing and use of mouthwash does not prevent tartar formation. Dental Plaque gets calcified from the
Calcium ions in saliva and it hardens on the tooth surface, which attracts more plaque. So, regular teeth cleaning (scaling) needs to be done, once a year at a dentist. You may be having tartar hidden underneath your gums, which is the major cause of mild internal gum swelling and bleeding.
Next Steps
U need to get scaling done regularly (once a year)
U can do normal warm salt water gargles also, no need to use a mouthwash daily. Warm salt water gargles work well.