Transcript Principles of Radiographic Interpretation

Unit 6
Severity of Caries
Early, incipient (1st degree)
 Moderate (2nd degree)
 Advanced (3rd degree)
 Extensive (4th degree)

Caries Progression
Location of Caries
Occlusal, incisal
 Proximal
 Lingual, palatal
 Facial
 Cemental
 Recurrent

Incipient Caries
Occlusal Caries
Occlusal Caries
Proximal Caries
Proximal Caries
Proximal Caries
Cemental Caries
Recurrent Caries
Caries immediately next to a restoration
 Inadequate margins or excavation
 Pulpal necrosis
 Metallic restorations often hide
 Clinical examination

Recurrent Caries
Recurrent Caries
Caries: Xerostomia
Therapeutic radiation
 Xerostomia
 Sjogren’s syndrome
 Caries begins at cervical region
 Extensive decay

Adumbration (Cervical Burnout)
Occlusal Caries
Adumbration
Adumbration
Between CEJ and alveolar crest
 Diffuse radiolucency
 Ill-defined borders
 Presence of the edge of root
 Clinical evaluation

Adumbration
Rampant Caries
Children
 Poor dietary habits
 Extensive caries
 Proximal and smooth surface
 Socio-economic factors

Rampant Caries
Rampant Caries
Factors In Caries Diagnosis
Location of the tooth
 Surface involved
 Size of the carious lesion
 Restoration, material
 X-ray beam angulation
 Film placement

Factors In Caries Diagnosis
Film type
 Developer solution – age
 kVp
 mAs
 Room lighting
 Observer
