In fact, bad breath is very common. I am a stomatological student, and I can produce some dry goods. First, bad breath. Almost 50% people in the world have suffered from bad breath (which shows that it is unusual).
Secondly, there are many common causes of halitosis, which is the most common physiological halitosis. For example, hunger, eating some drugs or irritating foods such as onions and garlic, smoking, and a large number of bacteria decomposing food residues caused by decreased saliva secretion during sleep may all cause short-term bad breath.
The bad breath of healthy people may be caused by the increase and thickening of plaque on the back of the tongue caused by bad oral habits and oral hygiene. Because of the large surface area of the back of the tongue, there are many nipples, cracks and depressions, which are beneficial to the retention of bacteria, exfoliated epithelium of oral mucosa and food residues. , and acts as a "bacteria storage room", which is conducive to the production of bad breath.
The results show that the degree of halitosis and the amount of volatile sulfide are positively correlated with the thickness and area of tongue coating, especially the thickness of tongue coating, and the volatile sulfide decreases after tongue coating is removed.
This may be because the thicker the tongue coating, the easier it is to form an anaerobic environment, the more conducive to the growth of anaerobic bacteria, and thus more conducive to the production of volatile sulfides, leading to bad breath. There is also false bad breath, that is, patients feel that they have bad breath, but the test results are negative. Those that can be improved by explanation and psychological counseling. ?
Finally, as long as you choose the correct brushing method, brush your teeth at least twice a day and develop the habit of gargling after meals. Or chewing fiber-rich food or chewing gum is very beneficial to reduce bad breath.