A bitewing radiograph of tooth #15 is inconclusive for the periapical region. Which additional radiograph best provides a diagnosis of the apex?

A periapical radiograph captures the entire tooth including the apex and surrounding periradicular bone, which bitewings do not, making it the appropriate next image. (CBCT is reserved for complex cases.)Other options: A repeat bitewing still omits the apex; a panoramic lacks fine detail; an occlusal film does not image the posterior apex well.Key exam takeaway: To evaluate the apex, take a periapical radiograph (bitewings show crowns/crestal bone only).