W5: Rad- Caries

Question 1

Caries classification site:

Answer 1

proximal is below contact
occ:caries progression through dentine= no border, gradual transition
buccal: pit circular, progress to enamel, rods collapse so its more clear
root: can only dev. under CEJ (no enamel involved. require GREAT DEAL OF BONE LOSS. no bone loss= no root caries.

Question 2

Caries classification: Root Caries

Answer 2

1= below half mm
2= over 0.5mm or just detectable= spot under CEJ on pt with LOA

Question 3

Caries classification

Answer 3

Question 4

Answer 4

secondary lesions
straight forward dx
see it adj to tooth structure.
asap clinical mx: restore

Question 5

Answer 5

distal of the 44, no more caries. was lesion. but pt listened to clinician. took advice. reconsidered sugar intake, lesion went away.

arrested caries clinically
- dark and ugly, some pt will restore these lesions bc they don’t look good.

Question 6

Before xray

Answer 6

clinical x-ray
caries risk: active or inactive?

Question 7

How often do you take xrays

Answer 7

High risk= lesions still present, plaque not controlled, no OH, lesions still happens= 6 monthly xrays

Mod= controlled, plaque scores improved, diet addressed, caries lesion become inactive

Question 8

Answer 8

distal and mesial

lesion pen on inner 1/2 dentine layer.

subjective. on mesial 33, probs dentine.

not class 4 or 5
probs class 1

Question 9

Answer 9

Question 10

Answer 10

Question 11

Factors affecting diagnosis

Answer 11

Question 12

Site classification

Answer 12

has scores
subjective

Question 13

Answer 13

darker bc no or less mineralisaed tissue.
CEJ crest distance is in anatomical messurement on 0.6 -2mm= avg range. acceptable. NOT caries.

• site is important

IF YOU SEE RADIOLUCENCY UNDER CEJ=nand alveolar crest is super far= root caries

Question 14

diff between infected and affected dentine in recurring caries.

Answer 14

lesion has no communication with oral cavity
massive overhang- need to address, no adapted to contact of tooth .

right image: margins of resto (pay attention when doing caries) on occlusal sf are ok, resto has sealed teh affected part of lesion, no bacteria access to inside tooth.

conservative mx: preserve the deeper layers of the affected tissue in order to give both tissue a chance.

only remove soft infected dentine, then get to layer of dentine that is leathery= bit more tactile

IF YOU SEE RADIOLUCENCY UNDER CEJ=nand alveolar crest is super far= root caries

Question 15

remove caries entirely?

Answer 15

removing infected
leaving affected

see study in reference

people who went conservative= better prognosis

recurring caries= margins of resto is compromised
if you see pt ask them if they have symptoms. then just leave it if clinical margins is ok