Fig. 5From: Performance of cone beam computed tomography and conventional intraoral radiographs in detecting interproximal alveolar bone lesions: a study in pig mandiblesPeriapical radiographs. a. Six-hour lesion between first molar and second premolar. No lesion (control) between first and second premolar. b. Four-hour lesion between first and second premolar. Two-hour lesion between second premolar and first molarBack to article page