Canine periapical radiograph

  • Horizontal overlapping less than 1/2 the enamel thickness at contact between canine and lateral incisor
  • Mesial and distal aspects of each tooth entirely visible on at least one radiograph
  • At least 2mm of bone visible beyond lamina dura of all erupted teeth
  • Maxillary: Record distal half of the lateral incisor
  • Mandibular: Record entire lateral incisor
  • Cusp tip visible (Canine only in maxilla, canine and lateral incisor in mandible)
  • Images of roots longer than images of crowns (> 2:1 root/crown ratio)