how to read an FMX (rotation)

Question 1

overall view

Answer 1

1) determine caries risk
- history of RCT
- crowns
-bone loss
- missing teeth
- attrition
* favor disease over artifact in a high caries risk

Question 2

differentials

Answer 2

1) sinuses may be asymmetrical
- sinus pneumatize to level of alveolar crest
- however, they do not pneumatize anteriorly
2) could be radicular cyst
3) glandular odontogenic cyst (not on differential)
- nice corticated boundary
- benign and aggressive
4) refer them to a pathologist
- CBCT scan before biopsy
- need to see entire periphery of the lesion

Question 3

label teeth and recognize what is missing

Answer 3

1) always count backwards from what you know

Question 4

PA

Answer 4

1) root and 2 mm
2) lamina dura and PDL space
3) surrounding bone

Question 5

interproximal vs root caries

Answer 5

1) root caries is below the contacts

Question 6

periodontal bone loss

Answer 6

1) say which third it is in the root

Question 7

hypercementosis

Answer 7

1) the lamina dura and PDL wrap around it nicely

Question 8

open margin

Answer 8

1) wedges between the crown and the root

Question 9

cupping appearance on the occlusal

Answer 9

1) erosion

Question 10

buccal lingual caries

Answer 10

1) well defined compared to interproximal

Question 11

when roots are near a pulpology

Answer 11

1) short and flat roots
2) lose lamina dura

Question 12

cervical burnout

Answer 12

1) is closer to the alveolar crest

Question 13

if PDL space and lamina dura is fuzzy

Answer 13

1) vitality test

Question 14

recurrent decay

Answer 14

1) looks fuzzy around the edges
2) bonding material can be radiolucent

Question 15

bone loss causes

Answer 15

1) PDL widening at the alveolar crest area