[imtringued]

Orange juice is indeed pretty terrible stuff.

Critic acid is probably the most potent tooth eroding dietary acid you can put in your mouth. This means anything lemon based is out, even sparkling water with lemon flavor. Orange juice is also out simply because of the sheer quantity.

Sugar based soda is terrible because it leads to oral dysbiosis, which is the leading cause of caries (bacterial acids) and gum disease. If you have persistent bad breath or bitterness in your mouth, you will probably need a probiotic treatment.

But here is the kicker: Diet soda is even more acidic than regular soda! Worse, avoid anything with orange or lemon added to it.

Although drinking water is the best thing you can do for your teeth, this doesn't mean you have to give up on juice or soda. It just means you should never drink juice or soda on its own. Always drink it in combination with a meal to soak up the acids. No matter what you eat, you should always wash it down with plain water.