Periodontal And Periapical Diseases. Periodontal Disease. Usefulness of Radiographs. Amount of bone present Condition of alveolar crest Bone loss in furcation areas Width of periodontal ligament Local factors: calculus, overhanging restorations Crown/root ratio. Limitations of Radiographs.
Horizontal Bone Loss: Crest of bone is parallel to CEJ line between adjoining teeth. The remaining bone is still horizontal but may be positioned apically.
Vertical bone loss
Crest of remaining bone is not parallel to the CEJ line between adjoining teeth (displays an oblique angulation to the CEJ line )
Secondary to Trauma to the Tooth