Commpetencies

Question 1

What is the BSI classification for class 1 incisors

Answer 1

The lower incisor edges occluded on or lie below the cingulum plateau of the upper incisors

Question 2

What is the BSI classification for class II div 1

Answer 2

The lower incisor edges occluded behind the cingulum plateau of the upper incisors and the upper incisors are normally inclined or proclind

Question 3

What is the BSI classification for class II div 2

Answer 3

The lower incisor edges occluded behind the cingulum platea of the upper incisors and the upper incisors are retroclined

Question 4

What is the BSI definition of class III

Answer 4

The lower incisor edges occlude anteior to the cingulum plateau pf the upper incisors

Question 5

What measurement would moderate crowding be?

Answer 5

4-8mm

Question 6

6. When measuring an overjet clinically which of the following applies
   A. The patient should be in intercuspal position
   B. The URA should be in the patient’s mouth
   C. The patient’s Frankfort Mandibular Planes Angle (FMPA) should be vertical
   D. The patient should be prone
   E.The patient should be in retruded contact position

Answer 6

A- the patient should be in intercuspal postion

Question 7

The Aesthetic component of IOTN

A - can only be used clinically on patients
B- is used to assess treatment complexity
C- uses a series of 10 photographs, with number 1 being the least attractive arrangement of teeth
D- is of use in rating dental attractiveness
E-fulfils all the criteria of an ideal index

Answer 7

D - is of use in rating dental attractiveness

Question 8

The Dental Health component of IOTN

A- is assessed using MOCDO system
B - can only be used on study models
C- records most favourable features of malocclusion
D - is an indicator of treatment complexity
E - is a subjective assessment

Answer 8

A is assessed using MOCDO system

Question 9

The PAR index
A - scores pre treatment study models only
B- is designed to assess treatment difficulty from study models
C- has been a method of assessing treatment outcome for 30 years
D-assesses the effect of orthodontic treatment on the facial profile
E-assesses 5 components of alignment
F- stands for the Peer Assessment Rating index

Answer 9

F - stands for the peer assessment rating

Question 10

What are the top three risks of fixed appliances

Answer 10

Decalcification

Relaspe

Root resorption

Question 11

The histolgical response to ‘’light forces’’ generated during orthodontic treatment include which of the following?
◦ Appostion of osteiod on pressure side ( osteoblasts)
◦ Frontal resorption
◦ Undermining resorption
◦ Resorption of the lamina dura from the tension side ( osteoclasts)
◦ Occlusion of the nerves of the periodontal ligament on the pressure side

Answer 11

Frontal Resorption

Question 12

Which of the following are deleterious effects of orthodontic treatment?
◦ Root resorption
◦ Increased deposition of secondary dentine
◦ Immediate pain
◦ Loss of sensitivity
◦ Ankylosis

Answer 12

Root resorption

Question 13

How much force is required to tip a tooth?
◦ 10-35 grams(mN)
◦ 65-90 grams(mN)
◦ 90-120 grams(mN)
◦ 120-135 grams(mN)
◦ 35-60grams(mN)

Answer 13

35-60 grams Mn

Question 14

Which conditions are thought to produce optimal orthodontic movement
◦ Light continuous force
◦ Light intermittent force
◦ Heavy intermittent force
◦ Heavy continuous force
◦ Heavy alternating with light force

Answer 14

Light continous force

Question 15

What is the average optimal rate of tooth movement?
◦ 1.0mm a month
◦ 1.7mm a month
◦ 1.5mm a month
◦ 2.0mma month
◦ 0.5mm a month

Answer 15

1.00mm a month

Question 16

What is the average optimal rate of tooth movement?
◦ 1.0mm a month
◦ 1.7mm a month
◦ 1.5mm a month
◦ 2.0mma month
◦ 0.5mm a month

Answer 16

1.00mm a month