Orthodontic5
201. Which are the clinical features in class II division 1 malocclusion?
σ� FMPA increased with open bite
σ� Overjet increased with upper front teeth proclined
σ� Overbite increased but over jet reduced
σ� Incomplete over bite & over jet decrease
202. In severe case skeletal class II division 2 malocclusion, treatment is ?
σ� Removable appliance
σ� Myofunctional appliance
σ� Orthognatic approach
σ� Initially removable,then fixed appliance
203. Which malocclusion cause of jet increased?
σ� Class I
σ� Class II div 1
σ� Class III case
σ� Class II div 2
204. What is the clinical feature of deep bite?
σ� Vertical overlapping of upper & lower anterior more than 40%
σ� Vertical overlapping of upper & lower anterior less than 20%
σ� Vertical overlapping more than 5%
σ� No vertical overlapping
205. Clinical feature of open bite?
σ� Vertical overlapping of upper & lower anterior more than 40%
σ� Vertical overlapping of upper less than 30%
σ� Vertical overlapping less than 50%
σ� No vertical overlapping
206. Maxillary teeth placed completely inside or outside of mandibular teeth called?
σ� Cross bite
σ� Scissors bite
σ� Deep bite
σ� Open bite
207. Scissors bite is seen in?
σ� Class II division 1 malocclusion
σ� Class II division 2 malocclusion
σ� Class III
σ� Class I
208. Anterior Cross bite is seen in?
σ� Class II division 1 malocclusion
σ� Class II division 2 malocclusion
σ� Class III
σ� Normal occlusion
209. Premature contact of deciduous posterior can causes?
σ� Deep bite
σ� Pseudo class III malocclusion
σ� Open bite
σ� Scissors bite
210. Tongue thrust is Effect of?
σ� Retroclination of anterior teeth
σ� Decreased over jet
σ� Proclination of anterior teeth with open bite
σ� crowding
211. How to keep space in early lost of deciduous teeth?
σ� Extraction
σ� Correction Of Thumb Sucking
σ� Space Maintainer
σ� Distalise molars
212. Developed anterior cross bite can be treated by?
σ� Z Spring
σ� Posterior Bite Plane
σ� Quad Helix
σ� Coffin spring
213. Cross elastic use to correct?
σ� Single Tooth Cross Bite
σ� Open Bite
σ� Deep Bite
σ� Segmental cross bite
214. When the midline of upper and lower not in a line was call ?
σ� Displacement
σ� Crowding
σ� Central Line Shifting
σ� Spacing
215. Box elastic use for the correction of?
σ� Cross Bite
σ� Open Bite
σ� Reduced Over Bite
σ� Reduced over jet
216. Tilting movement means?
σ� Root moves in opposite direction of crown.
σ� Root moves out of bone
σ� Root and crown moves in same direction.
σ� 25-30 gm force is required. .
217. Which is correct for Rotation movement?
σ� Tooth moves towards the occlusal plane.
σ� Tooth moves towards the socket
σ� Tooth moves around the long axis.
σ� Force is required 100-125 gm.
218. Which statement is correct for bodily movement?
σ� Root moves in opposite direction of crown.
σ� Root and crown moves in same direction.
σ� Multiple technique is required.
σ� Functional appliance is required.
219. Which sentence is correct for torque movement?
σ� The movement of root without causing significant of movement of the crown
σ� The movement of root with causing significant of movement of the crown.
σ� Resorption more in extensive apical areas.
σ� Force is required 50-60 gm.
220. Which one is the best tooth movement in orthodontic treatment?
σ� Gentle force.
σ� Short duration of time.
σ� No tooth movement.
σ� Tooth movement with tissue damage.
221. Which is the correct answer when don’t apply enough force ?
σ� Force does not exceed capillary blood pressure.
σ� Produce ideal tissue change.
σ� No tooth movement.
σ� Tooth movement without tissue damage.
222. Which statement is best when a force is applied to a tooth?
In pressure area bony resorption occur
σ� In pressure area bony deposition occur
σ� In tension area bone was resorped
σ� Neutralization of force occur tooth movement
223. Regarding of tissue change in mild force?
σ� Force is 25-30 gm
σ� Low degree of herperaemia seen
σ� Decrease cellular activity
σ� Increase production of osteoclast
224. Which one has changed occur in pressure side due to mild force?
σ� PDL are stretched
σ� Decreased capillary blood supply
σ� Proliferation of cellular activity
σ� Bone resorption occur
225. What are the change occur in tension side ?
σ� PDL are compressed
σ� Increased vascular supply
σ� Decreased cellular activity
σ� Deposition of bone occur
226. Which statement is correct for rapid movement of tooth?
σ� Old age of the patient
σ� Depend on the spongy bone
σ� Distal movement of tooth
σ� When ideal force is applied
σ� Bodily movement of tooth
227. Which statement is correct for Intrusion movement of tooth ?
σ� Young age of the patient
σ� Distal movement of tooth26
σ� When ideal force is applied
σ� slow movement of tooth with light force
228. What is the function for fixed appliance?
σ� Attachment are not fixed to the teeth
σ� It allows three dimensional control of teeth
σ� This device can be removes by the patient
σ� Force applied by muscle and bones
229. Which statements are correct for advantage of fixed appliance?
σ� Multiple tooth movement are done at a time
σ� Treatment cost is expensive
σ� Maintain good oral hygiene
σ� Residual space close is excellent
230. Which statements are correct for removable appliance?
σ� Removable appliance is complex
σ� Tiping movement
σ� Maintain good oral hygiene
σ� Only bodily movement is possible
231. Which statements are correct for molar band?
σ� These are passive appliance
σ� It helps in retention
σ� Arch wire tube is attached to the band
σ� These are active component
232. Which statements are correct for arch wire?
σ� These are passive appliance
σ� It helps in retention
σ� Arch wire tie to the bracket by elastomer
σ� It exert force to the teeth through bracket
These are active component
233. Which statement is correct for separators?
σ� These are active component
σ� These are passive component
σ� It create space for bracket
σ� It breaks the interdental contact
234. Which statement is correct for brackets?
σ� These are active component.
σ� Force is transmitted from the arch wire through the bracket.
σ� Bondable bracket indirectly attached to the teeth
σ� Bondable bracket indirectly attached to the teeth
235. Which sentence is correct for using elastic?
σ� Distalisation of upper canine by class III elastic
σ� To correct open bite by cross elastic
σ� Correct class III relation by class III elastic
σ� To correct cross bite by box elastic
236. Which statement is correct for spring?
σ� It is an active component
σ� To correct rotation by whip spring
σ� To close the space by open coil spring
σ� To open the space by close coil spring
237. Which is correct for Adam clasp?
σ� It is an retentive component
σ� To correct rotation by spring
σ� Foe close the space
σ� To open space
238. Anterior teeth most likely to be cross bite which of the following mixed malocclusion?
σ� Proclined upper incisor
Retroclined upper incisor
σ� Class II div.2
σ� Class III
239. Soft tissue profile of a severe skeletal III patient is?
σ� Convex
Concave
σ� Point A is ahead
σ� Point B is ahead
240. Rapid maxillary expansion RME is indicated in case?
σ� Posterior cross bite association with relative maxillary crowding
σ� Class II div 1 cases
σ� Cleft palate patients with collapsed maxillary arch
σ� Open bite cases
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