Periodontal disease is a serious, progressive condition which can cause tooth loss, gum recession and jawbone recession. Periodontal disease is caused by the toxins found in plaque, and can lead to serious health problems in other parts of the body. Removing plaque and calculus (tartar) from the surface of the tooth using a toothbrush, and from the interdental areas using dental floss, is an excellent way to stave off periodontal problems.