The cause is poor oral hygiene. Untreated gingivitis can lead to tooth loss and other serious conditions.
the dense fibrous tissue which attaches the tooth to the alveolar bone. It is continuous coronally with the gingival connective tissue.
the bone that supports the tooth and is connected to the root of the tooth via the periodontal ligament, which receives the force of the bite.
calcified connective tissue covering the outer surface of the root of the tooth and provides a medium for insertion of periodontal ligament fibers.