And the yellow tint to my teeth will not for the life of me go away. I've been brushing all over the place, front, back, everywhere in my mouth. I still have a slight yellow tint when I examine after each attempt. The middle looks slightly better but the sides definitely have a more yellow tint to them.
Is this normal? I'm trying to take better care of myself and I have no intention of visiting the damn dentist. Should I just keep brushing until it gets better?
EDIT: UPDATE: I wont ever brush for half an hour again like you guys said. I'll only brush twice a day for five minutes every day. And I'll have a small glass of water after having acidic food/drinks.
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You probably just brushed off layers of enamel and are going to cause more staining to occur. Go get your teeth bleached some or use strips or other whitening agents other than whitening toothpaste (shown to be temporary and least effective). Brush about twice a day unless one more is needed and use a soft brush, always swish mouth with water after acidic food or drink and don't brush right after these acidic foods.