What is the cause of tooth yellowing?

  There are two main reasons for jaundice: exogenous and endogenous jaundice. 1. Exogenous yellow teeth: Because food pigments stick to the teeth, they are yellow or gray; smoking soot, beverage, coffee, tea pigments stick to the teeth are yellow-gray. 2. Endogenous yellow teeth: teeth are affected by certain elements. Pigments are not on the…

Advantages and disadvantages of using electric toothbrush

  Previously quite noble electric toothbrushes, due to the price reduction in recent years, have become one of the hot sellers of small household appliances. Electric toothbrushes often advertise that they can vibrate quickly and remove plaque effectively, but doctors point out that foreign studies have found that electric toothbrushes and manual toothbrushes can clean…

How to brush your teeth correctly?

The specific steps are as follows: 1. Place the toothbrush at the junction of the crown and gingiva (red-white junction). The bristles of the toothbrush are 45 degrees with the teeth facing the gingiva or deep into the gingival sulcus (maxillary teeth up, mandibular teeth down). 2. Under gentle pressure, the horizontal direction of in…