Bad breath, also known as bad breath, refers to the unpleasant smell of air exhaled from the mouth. There are many factors that cause bad breath, the specific factors are as follows:
1. Poor oral hygiene: It can cause a lot of calculus and plaque, leading to inflammation and swelling of the gums, and the mouth smell is unpleasant at this time;
2. Dental caries: Food will be impregnated in the cavity and fermented, and it will also cause bad breath;
3. Pericoronitis of wisdom teeth: If the wisdom teeth do not grow out, the gums around the crowns are repeatedly inflamed, which can also cause bad breath;
4. Digestive tract diseases: such as constipation, indigestion, etc. can also cause bad breath, and corresponding gastrointestinal diseases need to be treated;
5. Local problems in the oral cavity: If the bad prosthesis is worn in the mouth for many years without cleaning, it will hide more dirt and cause bad taste in the mouth.
