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 1

Preoperative photograph and radiographs. Intraoral photographs of the right central and lateral incisor with swelling and spontaneous pain (a). The periodontal pockets were around 1–2 mm circumferentially, and there was no bleeding on probing sites. Intraoral radiographs showed no carious lesions in either incisor, but radiolucent regions were seen around the apexes of the maxillary right central and lateral incisors (b). Both incisors showed normal responses to the dental pulp cold stimulus test. Panoramic radiographs showed numerous apical and carious lesions in the mouth (c). The closest lesion to the site was the maxillary right first premolar. Intraoral periapical radiographs showed apical lesions of the maxillary right first premolar (d).

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