Use of Cone Beam Computed Tomography for Identification of a Distant Causative Tooth: An Unusual Case of an Apical Lesion from a Maxillary Premolar Mimicking That from Maxillary Incisors

Figure 3

Postoperative intraoral radiographs and photograph. Intraoral radiograph of the maxillary first premolar just after root canal filling (a). Intraoral periapical radiograph of the maxillary right central and lateral incisors after 6-month period from the retreatment of only the first premolar; the radiolucent regions tended to heal (c). Intraoral periapical radiograph of the maxillary first premolar and incisors after a three-year period: the radiolucent region of the premolar was healing. The retreatment of the root canal of the second premolar and first and second molars were realized (b), and the radiolucent regions of incisors had almost disappeared (d). Intraoral photograph of right central and lateral incisor after three years (e).

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