Health indices

Question 1

What is an index?

Answer 1

indicator of a trend

Question 2

Why do we need health indices?

Answer 2

to identify those in treatment need
identify priority groups
identify treatment changes
plan healthcare services

Question 3

How do we classify molar relationshio?

Answer 3

Angles classification

Question 4

What was angles classification based upon?

Answer 4

FPM would always erupt into a constant position

Question 5

Which index do we use for incisor classification?

Answer 5

British Stanards Institute Classification

Question 6

Which indices for ortho exist?

Answer 6

classification
Treatment need
Treatment success
Treatment complexity

Question 7

What are examples of treatment need indices?

Answer 7

summers occlusal index

IOTN

Question 8

WHat is an example of the treatment success?

Answer 8

Peer Assessment rating (PAR)

Question 9

What us an example of a treatment complexity index?

Answer 9

ICON

Question 10

WHat do health indices need to be?

Answer 10

quick
reliable: used repeatedly
Acceptable
valid: measures what its supposed to
cheap

Question 11

What was the IOTN based upon?

Answer 11

a governement initiative to determine the effect of malocclusion on dental health and psychological well being

Question 12

What are the two components of the IOTN?

Answer 12

DHC

AC

Question 13

What does the DHC consider?

Answer 13

single most detrimental occlusal feature of the dental health

Question 14

what scale is the DHC meaured in?

Answer 14

1-no need
2-slight need
3-moderate need
4-great need
5-very great need

Question 15

What does the letter a in the IOTN correspond with?

Answer 15

overjet

Question 16

What does the letter b in the IOTN correspond with?

Answer 16

reverse overjet

Question 17

What does the letter c in the IOTN correspond with?

Answer 17

Ant/Post X bite

Question 18

What does the letter d in the IOTN correspond with?

Answer 18

displaced teeth

Question 19

What does the letter e in the IOTN correspond with?

Answer 19

Ant/Pos open bite

Question 20

What does the letter f in the IOTN correspond with?

Answer 20

increased overbite

Question 21

What does the letter g in the IOTN correspond with?

Answer 21

prenormal/post normal occlusion with no other anomalies

Question 22

What does the letter h in the IOTN correspond with?

Answer 22

hypodontia

Question 23

What does the letter l in the IOTN correspond with?

Answer 23

Post Lingual cross bite

Question 24

What does the letter m in the IOTN correspond with?

Answer 24

reverse ovejet

Question 25

What does the letter i in the IOTN correspond with?

Answer 25

impeded eruption of teeth except third molar

Question 26

What does the letter p in the IOTN correspond with?

Answer 26

cleft lip and palate

Question 27

What does the letter s in the IOTN correspond with?

Answer 27

submerged teeth

Question 28

What does the letter t in the IOTN correspond with?

Answer 28

partially erupted teeth

Question 29

What does the letter x in the IOTN correspond with?

Answer 29

supplemental teeth

Question 30

What does the aesthetic component comprsise of?

Answer 30

10 point scale

Question 31

What does the PAR index measure?

Answer 31

measures overall occlusal integrity looks at occlusal outcome compared to the initial malocclusion Can create a percentage PAR reduction

Question 32

What is the pupose of ICON?

Answer 32

to identify those cases which will take longer decide who should treat these cases inform the patient on the success of the treatment allow treatment outcome to be assessed more meaninfully

Question 33

How is the ICON calculated?

Answer 33

IOTN and PAR

Question 34

What is measured in ICON?

Answer 34

``` AVPUB Aesthetic component (IOTN) x7 Vertical relationships (PAR) x4 Presence of x bite x5 upper arch crowding/spacing x5 Buccal segment AP relationship (PAR) x3 ```

Question 35

What are the cut off values for ICON?

Answer 35

easy 77

Question 36

What must a patient score on IOTN to qualify for NHS treatment?

Answer 36

IOTN DHC 4/5 | IOTON DHC 3 + AC >5

Question 37

What are the limitations to using IOTN?

Answer 37

DHC evidence is incomplete AC is subjective doesent indicate treatment complexity

Question 38

What are the limitations to PAR?

Answer 38

``` hypodontia cases-redistrbution of spaces doesnt score highly Ectopi canines )one v ectopic tooth doesnt core highly) orthognathic cases (facial improvement doesnt score highly) ```

Question 39

When is the PAR index used in UK?

Answer 39

Assess overall quality of occlusal improvements of orthodontists or practices