Question: pyorrhoea is caused by protozoa?
Answer: Gum disease, and its related conditions, is known by many names: Gingivitis, Periodontal Disease, Periodontitis (Pyorrhea). Simply put, gum disease manifests itself when plaque and tartar are allowed to build up at the gum line. Plaque and tartar are full of bacteria, which can then cause an infection of the gums.