Periodontal DiseasePeriodontal ligament attachment andalveolar bony support of the tooth havebeen lost.Junctional epithelium migrates apical tothe CEJ.
Periodontal DiseaseBitewings best for diagnosis. Some feelthat paralleling PA’s are best.Higher kVp recommended (long scale, lowcontrast).Compare images from differentvisits (using same technique).
Limitation of Radiographs• Two-dimensional representation of a 3-D anatomic structure.• Superimposition of the bone and tooth structures* Relationship of hard to soft tissues not evident
Limitation of Radiographs* Presence or absence of periodontalpockets.* Early bone loss (<3mm) is not evident.* Early furcation involvement is notevident.
Limitation of Radiographs* PA: X-ray beam alignment willobliterate the presence of extent offurcation involvement.* Facial and lingual aspects of alveolarbone will be superimposed over thefurcation.
Restorative MaterialsRadiopaque: Structures with higher objectdensity, such as amalgam, gold, silverpoints, pins, gutta percha, porcelain.Radiolucent: Structures with lower objectdensity, such as older composites andbonding agents.