1. Frankel- IV for used for

a) class 1 malocclusion
b) class 2 malocclusion
c) class 3 malocclusion
d) bimaxillary protrusion

2. Jasper jumper is a

a) flexible fixed functional appliance
b) rigid fixed functional appliance
c) fixed functional appliance
d) none of the above

3. Denholtz appliance is used for

a) correction of open bite
b) distalization of the molars
c) correction of deep bite
d) correction of anterior cross bite

4. Frankel appliance is a

a) myofunctional appliance
b) removable appliance
c) fixed appliance
d) none of the above

5. Lip bumper not used in the treatment of

a) Lip biting
b) distalization of molars
c) nail biting
d) lip exercises

6. Norwegian appliance is

a) bionator
b) activator
c) Frankel
d) Twin block

7. The two blocks in the Twin block functional appliance are angulated at (or) for the angle of incline plane in Clarks twin block is

a) 45 degree
b) 70 degree
c) 65 degree
d) 80degree

8. Which of the following is a myofunctional appliance

a) Catalans appliance
b) Hawley’s appliance
c) expansion screw
d) derishsweiler appliance

9. Lip bumper was used for

a) mouth breathing
b) nail biting
c) for lip biting and hyperactive mentalis
d) all of the above

10. Which of the following is a fixed functional appliance

a) bionator
b) bow Activator
c) herbst appliance
d) a and b

Answer with explanation

1 D

2. A

3. B

Maxillary lip bumper is also known as Denholtz appliance

LIP BUMPER IS USED FOR

• Correct the hyperactive mentalis
• Correct the minor crowding in lower anteriors
• Distalization of lower molars
• Anchorage augmentation

4. A

5. C

LIP BUMPER IS USED FOR

• Correct the hyperactive mentalis
• Correct the minor crowding in lower anteriors
• Distalization of lower molars
• Anchorage augmentation

6. B

SYNONYMS OF ACTIVATOR

– Biomechanic working retainer

– Andersen appliance

– Nocturnal airway patency appliance.

– Norwegian appliance.

– monobloc

– bite jumping appliance

7. B

The Twin Block is an effective removable appliance for correcting antero-posterior discrepancies in the late mixed or early permanent dentition

The inclined planes are mostly angled at 70 degrees to the occlusal plane, although the angulation may be reduced to 45 degrees if the patient fails to posture forward consistently.

8. A

Catalans appliance is used to correct cross bite of young patients whose permanent molars have not erupted and deciduous molars are also lost due to extraction.

9.C

LIP BUMPER IS USED FOR

• Correct the hyperactive mentalis
• Correct the minor crowding in lower anteriors
• Distalization of lower molars

Anchorage augmentation

10. C