Abstract
A 35-year-old female patient reported with chief complaint of discoloration and pus drainage from the upper right central incisor. On examination, brownish discoloration of teeth 11 was seen and a draining sinus tract was present on the labial alveolar mucosa [Table/Fig-1a]. A deep periodontal pocket of 13mm was found on the palatal aspect of 11 and a Palato Radicular Groove (PRG) extending into the gingival sulcus was identified [Table/Fig-1b,,1c].1c]. Periapical radiographs revealed an extensive peri-radicular radiolucency involving the apical and middle one-third of the mesial aspect of root [Table/Fig-1d]. The tooth tested negative to pulp vitality. The facial sinus tract was traceable with a gutta-percha cone to the periapical radiolucency [Table/Fig-1e]. Based on clinical and radiographic findings, it was concluded that tooth 11 having a PRG predisposed to the development of localized periodontitis with secondary endodontic involvement.
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