口臭,医学上称口腔异味。引起口臭的原因很多,但不外乎口腔局部或全身性疾病两大因素。口腔内的细菌是引起口臭的最大元凶,因此,正确刷牙,养成良好的口腔卫生习惯是预防口臭的有效措施。口腔内细菌所致的口臭,是因舌后部细小的指状绒毛上面存有大量可产生硫化物臭味的细菌,是刷牙方法不当所致。这种口臭只要采取正确的刷牙方法后会自行消失;全身性因素则与某些疾病有关,如牙周炎、龋齿、萎缩性鼻炎、慢性副鼻窦炎、糖尿病酮症酸中毒、肾功能衰竭、尿毒 Bad breath, medicine called oral odor. Cause bad breath for many reasons, but nothing more than local or systemic oral disease two major factors. Oral bacteria is the biggest culprit caused by bad breath, therefore, the correct brushing, develop good oral hygiene is an effective measure to prevent bad breath. Oral bacteria caused by bad breath, because the tongue behind the small finger flu there is a large number of bacteria can produce sulfide odor, brushing method is due to improper. Such bad breath as long as the correct way to brush your teeth will disappear; systemic factors are associated with certain diseases, such as periodontitis, dental caries, atrophic rhinitis, chronic sinusitis, diabetic ketoacidosis, renal failure, Uremia