Increased levels of Streptococcus anginosus, a common type of bacteria that usually lives in the mouth and gut, was found in the gut of recent stroke survivors in Japan.
These can include issues around sensitivity, which are caused by damage to the tooth enamel. If you want to go peroxide-free, look at using formulas with other active ingredients, such as PAP ...
Dental crowns are used for a number of reasons. Your dentist may recommend one due to loss of tooth structure or root canal treatment. You might also choose one for cosmetic improvement of your smile.