Here are the most common symptoms: Bad Breath  The activity of pathogenic microflora causes putrefactive decay of tissues and provokes inflammatory reactions, which causes an unpleasant smell. Teeth cleaning helps neutralize oral microflora and get rid of the unpleasant aroma. Inflamed Gums (Gingivitis)  It shows itself in the form of swollen, reddened, and achy gums. All of this is a consequence of the activity of pathogenic microorganisms that multiply intensively in the oral cavity. The formation of plaque results from the movement of bacteria processing food leftover in the oral cavity. Bacteria use the remnants of food, simultaneously forming Plaque. The food falls between the gum line and the tooth’s root; an inflammatory reaction will occur. This can cause a severe toothache, and in some cases, “harmless” gingivitis can degrade the bone tissue of dental alveoli and even cause inflammation of the jaw bone. Dark spots, Tartar, and Plaque on the Surface of the Enamel Plaque accumulates on the teeth, mineralizing and hardening and becoming Tartar. Tartar is very damaging to a dog’s oral and overall health of your pet. Flux (Swelling of the Muzzle) Flux is one of the most visible and typical signs of problems with teeth and gums. If the infection is severe, the gum and surrounding tissues visibly inflame. Sometimes it is a slight swelling, and sometimes the dog’s muzzle looks exceptionally swollen. With such severe symptoms, teeth cleaning and removing a plague would not be enough to treat the issue at hand. Loss of Appetite A swollen or infected gum line may cause a lack of appetite. Sneezing Pathogenic microflora can get into the sinus cavity when there are constant sources of infection in the mouth in Tartar, Plaque, inflamed gums, etc. These might cause rhinitis and frequent sneezing.