Tooth decay may cause bad breath.
Tooth decay is related to the lack of attention to oral hygiene, when food embedded, not timely removal of food with corruption and deterioration, has been left in the mouth, will produce an odor. And after the food debris corruption, will repeatedly stimulate the tooth tissue, easy to lead to the degree of caries aggravation or the formation of cavities. For larger cavities, more food will be embedded and the odor will be more pronounced.
Most patients in the emergence of dental caries, did not get timely treatment, may cause secondary infection, easy to produce bacterial fermentation of sugar, organic acids, etc., do not clean the mouth in a timely manner will emit an odor, which leads to bad breath.
Found that there is tooth decay, you need to consult a doctor in a timely manner, and under the guidance of a professional physician to analyze the severity of tooth decay, and then according to the diagnosis of the results of targeted treatment, if there is a significant hole pit needs to be filled in a timely manner or root canal treatment.