1: oral halitosis
According to statistics, 80% ~ 90% of bad breath comes from the mouth. Untreated dental caries, residual roots, residual crowns, poor repair, abnormal anatomical structure, gingivitis, periodontitis, oral mucosal diseases and so on can all cause bad breath. Dental caries and periodontal disease are the most common related diseases.
2. Non-oral halitosis
Oral adjacent tissue diseases, such as suppurative tonsillitis, chronic maxillary sinusitis, atrophic rhinitis, etc. , can produce purulent secretions and odor; Acute and chronic gastritis, peptic ulcer and other common clinical medical diseases have sour smell; Bad duck egg halitosis often occurs in pyloric obstruction and late gastric cancer; Patients with diabetic ketoacidosis can exhale acetone-flavored gas, while uremia patients can exhale rotten apples. In addition, leukemia, vitamin deficiency, heavy metal poisoning and other diseases can cause bad breath.
3. Physiological halitosis
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 temporary 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.
Self-examination method of halitosis
1, self-feeling method (cover your nose and mouth with your hand, exhale through your mouth, and then smell the exhaled gas yourself);
2. Close relative feedback method: based on feedback from relatives, friends or spouses;
3. Clinical trial methods: mainly including wrist-adding experiment and plastic spoon experiment;
4. Direct nose measurement by professional doctors: it is one of the objective evaluation methods of halitosis, which is simple and accurate to implement. Diagnosed by a professional halitosis rhinologist, the degree of halitosis was measured by a scale of 0~ 5, and the results were reproducible.
5. Laboratory tests: chemical analysis (gas chromatography/mass spectrometry sulfide monitor, high performance liquid chromatography analysis, zinc oxide thin film semiconductor sensor, BANA analysis), gargle oxygen consumption experiment, microbial and fungal detection, saliva culture, etc.
6. Artificial nose: including portable sulfide tester.
You can usually eat the following foods to prevent bad breath:
1? Eat foods rich in dietary fiber to help beneficial bacteria in the digestive tract. These probiotics can prevent the reproduction of bad probiotics and help digestion.
2? In addition to foods rich in fiber, herbs and spices such as fennel, fennel and cardamom can be added to the diet to increase the digestive juice that can decompose fat.
3? Vitamin B supplementation, lack of B family, weak gastrointestinal peristalsis, poor secretion of digestive juice, leading to indigestion, constipation, bad breath, stool odor.
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