Lecture 4 Flashcards Preview

Cariology > Lecture 4 > Flashcards

Flashcards in Lecture 4 Deck (19):
1

index

standard method of rating on a scale

2

ideal index

measures what it claims to measure (valid) and reliable (repeatable, reproducible, consistent at any time under a variety of conditions)

3

DMFT/S and dft/s Dental Indices

Permanent (DMFT/S)
DMFT = 0-28
DMFT/S = 0-128

Primary (dft/s)
dft = 0-20
dfs = 0-88

Posterior: 5 surfaces
Anterior: 4 surfaces

4

What are exclusions to DMFT/S and dft/s?

do not count:
3rd molars

unerupted teeth

congenitally missing or supernumerary teeth

teeth lost not to caries/disease

retained primary teeth

5

What are the limitations of DMFT/S and dft/s?

data is not useful for identifying treatment needs

indices don't account for sealed teeth

indices don't relate to teeth at risk

indices give equal weight to missing, untreated, or well-restored teeth

indices don't account for teeth lost for other reasons, such as ortho or perio disease

6

D1-D3 Scale

first published by WHO
0= sound
D1 = initial caries
D2 = Enamel caries
D3 = dentin caries
D4 = Pulpal involvement

7

What are the benefits of D1-D3 scale?

ID lesion initiation and progression

addresses research questions (conditions under which early lesions progress/regress or remain static)

8

What are the weaknesses of D1-D3 scale?

meticulous examiner training

application for large scale studies is questionable

most studies use the dichotomous scales: caries present or not

9

Root Caries Index (RCI)

uncertainty in diagnostic reliability

10

ICDAS (international caries classification and management system)

system of caries detection/assessment reflecting current scientific understanding of carious process
-coronal caries
-root caries
-caries adj. to restorations or sealants

scale goes from health to disease and shows progression of disease

11

Where can ICDAS be use?

criteria record both enamel and dentin caries and explore the measurement of caries activity in: epidemiology Public Health, Clinical Research, Clinical Practice, Education

12

ICDAS codes

consist of two digits:

first, refers to the presence of restoration and/or sealant

second refers to caries

13

Caries Code: Score 0 (icdas)

sound, no evidence of caries

14

Caries Code: Score 1

first visual change in enamel

15

Caries Code: Score 2

distinct visual change in enamel

16

Caries Code: Score 3

localized enamel breakdown due to caries w/ no visible dentin

17

Caries code: Score 4

non-cavitated surface w/ underlying dark shadow from dentin

18

caries code: score 5

distinct cavity w/ visible dentin

19

caries code:score 6

extensive distinct cavity w/ visible dentin