How bad breath develops

Sour milk odour accompanying periodontal disease may result from bacterial population associated with plaque, calculus, unhealthy tissue, decomposed food particles retained within oral cavity. Normal lung air or stomach will never contribute to persistent bad breath.

As plaque gets older and infected, it inflames the gingival (the junction between the teeth and the gum), further causing inflammation of the bone and bone loss takes place. Over a period of time, if attention is not given to the plaque, the aerobic gram positive bacteria changes to anaerobic gram negative bacteria.

The rough surface of tartar attracts more bacteria, which irritates the gums, creating pockets at the gingival junction, which starts housing food debris, leading to tooth decay. Breeds like Pomeranian, Poodles, Lhasa Apso are prone to oral disease, thus proper dental hygiene needs to be maintained. Other diseases like diabetes, advanced renal failure, skin disorder like lip fold pyoderma can cause a foul smell to the breath.