A Female patient comes for treatment of discoloured maxillary canine tooth. On examination there is yellowish discoloration of tooth which is not tender on palpation or percussion test. Radiograph reveals obliteration of root canal. History of trauma is elicited on questioning.

What is the condition?
Fibrous degeneration of pulp
Calcific metamorphosis
Pulp calcification
Dental fluorosis
Calcific metamorphosis