Caries appear ______; decreased density in area of decay allows for greater penetration of x-rays.
radiolucent
Which x-ray is the best for caries detection?
posterior BW
What are the 4 locations of caries? What are the 2 special categories of caries?
1. interproximal
2. occlusal
3. buccal and lingual
4. root
1. recurrent
2. rampant
Interproximal caries is seen where?
at or just below the contact
As caries progresses through enamel, it typically assumes a ______ configuration.
triangular
When caries reaches DEJ, it spreads ____ through dentin.
laterally
Interproximal classification by degree of severity:
I = ______
II = ______
III = ______
IV = _____
incipient
moderate
advanced
severe
Incipient is < ____ thru enamel.
Moderate is > _____ thru enamel but NOT to DEJ.
Advanced is thru _____, < _____ way to pulp.
Severe is thru _____, > _____ way to pulp.
1/2
1/2
DEJ; 1/2
DEJ; 1/2
Incipient is Class I: <1/2 through enamel
Moderate is Class II: >1/2 through enamel; not into dentin
Advanced is Class III: involves DEJ but <1/2 way to pulp
Severe is Class IV: >1/2 way to pulp
Occlusal classification by degree of severity:
- incipient is _____ only!!! CANNOT be seen on dental image!
- moderate is thin _____ in dentin below occlusal enamel
- severe is large ______ extending from occlusal
clinical
radiolucency
radiolucency
Moderate occlusal caries: thin radiolucent line
Severe occlusal caries: large radiolucency
Buccal and lingual caries appear as a _____ radiolucency.
circular
Root surface caries:
- _____ only
- below the _____
- _____ radiolucency
roots
CEJ
cupped-out
Recurrent caries:
- ______ area below interproximal margin of restoration
- BW may hide recurrent decay; use _____ for additional info
radiolucent
PA
Rampant caries:
- ______, multiple carious lesions
- affecting _____ teeth
widespread
multiple
What are 4 conditions that resemble caries?
cervical burnout
composites
attrition
abrasion
Cervical burnout:
- only seen in _____ area
- below the _____
- wedge-shaped ______ in mesial and distal cervical areas
cervical
CEJ
radiolucency