Find the word definition

Wiktionary
hypercementosis

n. An idiopathic, non-neoplastic condition characterized by the excessive buildup of normal cementum (calcified tissue) on the roots of one or more tooth.

Wikipedia
Hypercementosis

Hypercementosis is an idiopathic, non- neoplastic condition characterized by the excessive buildup of normal cementum (calcified tissue) on the roots of one or more teeth. A thicker layer of cementum can give the tooth an enlarged appearance, which mainly occurs at the apex or apices of the tooth.