From food stuck between teeth or to sugar from food remains in the mouth and in contact with the teeth for a long time. As a result, the bacteria undergo degradation fragments carbohydrates and sugars into lactic acid, which has the effect of dissolved minerals, the structure of the teeth so decayed tooth enamel, the outer layer of small increments. into the dentin It bypasses the inner pulp of teeth, which can cause pain or tooth purulent inflammation.
การแปล กรุณารอสักครู่..
