The two most common forms of periodontal disease are:
Gingivitis is inflammation which affects the gums only. Plaque, if not regularly removed, causes the gums to become red, swollen or tender and bleed easily when you brush. Gingivitis is reversible, however if not treated it may be followed by more serious disorder – periodontitis.
Periodontitis is a deep inflammation which affects the bone holding the teeth in place. If left untreated, the attachment holding the tooth in the bone is destroyed, and this leaves a space or “pocket” in which more bacteria can collect. Bone loss occurs and teeth may become loose, or eventually be lost.