Replied by Ted (Bangkok, Thailand)
Apple cider vinegar is too acidic in the mouth and may not help repair for the mouth. So just try to use baking soda as a mouthwash or just try 2 tablespoon of Apple cider vinegar plus 1/4 teaspoon of baking soda to neutralize the acid.
Usually bleeding gums are helped with vitamin C sodium ascorbate 1000 mg and the niacinamide vitamin B3 100 mg (only taken for a couple of days).
Vitamin B5 and vitamin B8 helps the skin repair also, but I take them about 500 mg of each. I actually prefer the panthenol form of B5 while the B8 inositol is relatively mild for skin and hair repairs.
Replied by Rick (Usa) on 04/26/2015
Hydrogen peroxide is also very good for peridontal problems. Hold it in your mouth for a minute or two also. Use it two or three times a day and you will notice the difference within a week or so.