IOTN

Question 1

What is the dental health component of the IOTN used for?

Answer 1

To consider the potential harm malocclusion can have on a patient’s dentition long term.

Question 2

What are the features of malocclusion?

Answer 2

Missing
Overjet
Crowding
Displacement
Overbite

Question 3

What are the gradings ?
2b
2c

Answer 3

1 - No need
2-Little need
3- Moderate need
4-Great need
5- Very great  need

Question 4

What is 1a

Answer 4

Minor occlusions displacements <1 mm

Question 5

List
2a
b
c
d
e
f
g

Answer 5

2a Increased overjet > 3.5mm < or = 6mm. Competent lips
2b Reverse overjet > 0 < or = 1mm
2c Anterior/posterior crossbite < or = 1mm discrepancy between retruded contact or intercuspal position
2d Displacement of teeth > 1mm < 2mm
2e Anterior/posterior open bite > 1mm< 2mm
2f Increased over bite > or = 3.5mm without gingival contact
2g Pre normal or post normal buccal occlusions with no other onamalies ( up to half a unit discrepency)

Question 6

3a
b
c
d
e
f

Answer 6

3a Increased overjet > 3.5mm < =6mm.Incompetent lips
3b Reverse overjet > 1 < =3.5mm
3c Anterior/posterior crossbite > 1 or <= 2mm
3d Displacement of teeth >2mm <= 4mm
3e Anterior/posterior open bite > 2mm<= 4mm
3f Increased and complete over bite without gingival or palatal trauma

Question 7

4a
b
c
d
e
f

Answer 7

4a Increased overjet >6mm <= 9mm .competent lips
4b Reverse overjet > 3.5mm with no masticatory or speech difficulties
4C Anterior/posterior crossbite 2mm between retruded and intercuspal contact
4D Severe displacement of teeth > 4mm
4e Extreme anterior/posterior open bite > 4mm
4f Increased and complete over bite with gingival and palatal trauma

Question 8

4h
l
m

Answer 8

4h Less extensive hypodontia requiring ortho space closure
4l posterior or lingual crossbite with no occlusal contact in buccal segments
4m Reverse overjet > 1mm < 3.5mm no mast /speech diff.

Question 9

4t

x

Answer 9

4t Partially erupted teeth , tipped impacted against adj teeth
4x presence of supernumary teeth

Question 10

5a
h
i

Answer 10

5a increased overjet > 9mm
5h extensive hypodontia ( more than 1 tooth in each segment)
I Impeded eruption of teeth due to crwding,displacement

Question 11

5m
p
s

Answer 11

5m Reverse overjet > 3.5mm with masticatory and speech difficulties
5p Cleft lip or palate
5s submerged deciduous teeth

Question 12

What is the aesthetic component?

Answer 12

Grading system indicates the need for treatment on aesthetic grounds and indicates the psycological impact that the appearance of teeth could have on a patient

Question 13

Grade 1/2 need?

Answer 13

No need

Question 14

Grade 3/4 need?

Answer 14

Slight need

Question 15

Grade 5/6/7 need?

Answer 15

Moderate need

Question 16

Grade 8/9/10

Answer 16

Definate need

Question 17

What is PAR

Answer 17

Peer assessment rating review
To show how effective the outcome of ortho txt is
Used by the NHS to monitor effectiveness of clinicians annually

Question 18

List 5 components of a par score sheet

Answer 18

upper and lower ant segments - 3d to 3d
R an L Buccal segments ( 3-8)
Overjet - horizontal mm u an l incisors
Overbite -              reverse - cross bite
centre lines -