Radiographic recognition of dental caries Flashcards
- one of the most prevalent human
diseases
• associated with highly refined sugar and
retentive food diets that remains
prevalent in lower socio-economic groups.
• greatest cause of tooth loss <35 years
Dental caries
______ patho physiology: related to bacterial adhesion to tooth
surfaces and plaque formation
Dental caries
What are the 2 factors affecting caires presentation?
Angle of beam
Placement of image receptor
___ caries:
in enamel layer
-ranges from a demineralization effect at proximal surface and can extend axiallyto contact DEJ
Initial caries
What is diagnosis?
Initial caries
____ caires
- spreading vertically at DEJ and/or
- extending axially less than halfway in dentin layer
Moderate caries
What is diagnosis?
Moderate
What is diagnosis?
Moderate
_____ caries:
Greater than or equal to halfway into dentin layer and can extend axially to contact pulp
Advanced caries
What is diagnosis?
Advanced caries
What is diagnosis?
Advanced caries
\_\_\_ caries - Saucerized or scooped-out appearance - 50% prevalence in geriatric population - Most common in B premolar regions, then, followed by Li & interproximal areas -anaerobic bacteria
Root surface
What is diagnosis?
Root surface caries
_____ caries:
Radiolucent areas of demineralization under or around a current restoration
Recurrent caries
What is diagnosis?
Recurrent caries
____ caries:
Difficult to localize on a single view
May superimpose pulp
-Can see clinically
Buccal lingual caries
What is diagnosis?
B/Li caries
ICDAS Classification:
Lesion within outer ½ of enamel
E1
ICDAS Classification:
Lesion within inner ½ of enamel
E2
ICDAS Classification:
Lesion within outer 1/3 of dentin
D1
ICDAS Classification:
Lesion within middle 1/3 of dentin
D2
ICDAS Classification:
Lesion within inner 1/3 of dentin
D3
A. The dentin artifact simulates caries
B. Lesion is outlined by normal anatomic structures and is a relative radiolucency
Interproximal burnout
_____ occlusal caries
• Difficult to detect on radiographs due to
- small width of the lesion
- density of superimposing enamel
Incipient occlusal caries
____ occlusal caries:
• Broad-based thin radiolucent zone in dentin with
no changes in enamel
• Noticed as a relative increase in opacity between
pulp and caries
Moderate occlusal caries
____ occlusal caries:
• Undermined enamel with gross loss of tooth
structure
Severe occlusal caries
ICDAS diagnosis?
E1
ICDAS diagnosis?
E2
ICDAS diagnosis?
D1
ICDAS diagnosis?
D1
ICDAS diagnosis?
D2
ICDAS diagnosis?
D2
ICDAS diagnosis?
D3
ICDAS diagnosis?
D3
What is diagnosis?
Cervical burnout
What is diagnosis?
Cervical burnout
____ interproximal caries:
• Penetrates < ½ the enamel thickness as a
radiolucent notch on the outer surface of the
tooth
E1
\_\_\_\_ interproximal caries: • Penetrates > ½ the enamel thickness • May have an isosceles triangular outline with the base at the proximal surface • Does NOT extend to DEJ
E2
____ interproximal caries:
• Undermines enamel and extends into dentin
• at or axial to the DEJ
• Penetrates < 1/3 the outer peripheral dentin thickness
D1
____ interproximal caries:
• The dentin lesion is a more extensive dentin lesion
• Penetrates to mid 1/3 of the dentin thickness
D2
____ interproximal caries:
• The dentin lesion is more extensive than the enamel
lesion
• Penetrates > 2/3 (or inner 1/3) of the dentin thickness
D3
