Orthodontic5
201. Which are the clinical features in class II division 1 malocclusion?
σ½ FMPA increased with open bite
σ¾ Overjet increased with upper front teeth proclined
σ½ Overbite increased but over jet reduced
σ½ Incomplete over bite & over jet decrease
202. In severe case skeletal class II division 2 malocclusion, treatment is ?
σ½ Removable appliance
σ½ Myofunctional appliance
σ¾ Orthognatic approach
σ½ Initially removable,then fixed appliance
203. Which malocclusion cause of jet increased?
σ½ Class I
σ¾ Class II div 1
σ½ Class III case
σ½ Class II div 2
204. What is the clinical feature of deep bite?
σ¾ Vertical overlapping of upper & lower anterior more than 40%
σ½ Vertical overlapping of upper & lower anterior less than 20%
σ½ Vertical overlapping more than 5%
σ½ No vertical overlapping
205. Clinical feature of open bite?
σ½ Vertical overlapping of upper & lower anterior more than 40%
σ½ Vertical overlapping of upper less than 30%
σ½ Vertical overlapping less than 50%
σ¾ No vertical overlapping
206. Maxillary teeth placed completely inside or outside of mandibular teeth called?
σ½ Cross bite
σ¾ Scissors bite
σ½ Deep bite
σ½ Open bite
207. Scissors bite is seen in?
σ½ Class II division 1 malocclusion
σ¾ Class II division 2 malocclusion
σ½ Class III
σ½ Class I
208. Anterior Cross bite is seen in?
σ½ Class II division 1 malocclusion
σ½ Class II division 2 malocclusion
σ¾ Class III
σ½ Normal occlusion
209. Premature contact of deciduous posterior can causes?
σ½ Deep bite
σ¾ Pseudo class III malocclusion
σ½ Open bite
σ½ Scissors bite
210. Tongue thrust is Effect of?
σ½ Retroclination of anterior teeth
σ½ Decreased over jet
σ¾ Proclination of anterior teeth with open bite
σ½ crowding
211. How to keep space in early lost of deciduous teeth?
σ½ Extraction
σ½ Correction Of Thumb Sucking
σ¾ Space Maintainer
σ½ Distalise molars
212. Developed anterior cross bite can be treated by?
σ¾ Z Spring
σ½ Posterior Bite Plane
σ½ Quad Helix
σ½ Coffin spring
213. Cross elastic use to correct?
σ¾ Single Tooth Cross Bite
σ½ Open Bite
σ½ Deep Bite
σ½ Segmental cross bite
214. When the midline of upper and lower not in a line was call ?
σ½ Displacement
σ½ Crowding
σ¾ Central Line Shifting
σ½ Spacing
215. Box elastic use for the correction of?
σ½ Cross Bite
σ¾ Open Bite
σ½ Reduced Over Bite
σ½ Reduced over jet
216. Tilting movement means?
σ¾ Root moves in opposite direction of crown.
σ½ Root moves out of bone
σ½ Root and crown moves in same direction.
σ½ 25-30 gm force is required. .
217. Which is correct for Rotation movement?
σ½ Tooth moves towards the occlusal plane.
σ½ Tooth moves towards the socket
σ¾ Tooth moves around the long axis.
σ½ Force is required 100-125 gm.
218. Which statement is correct for bodily movement?
σ½ Root moves in opposite direction of crown.
σ¾ Root and crown moves in same direction.
σ½ Multiple technique is required.
σ½ Functional appliance is required.
219. Which sentence is correct for torque movement?
σ¾ The movement of root without causing significant of movement of the crown
σ½ The movement of root with causing significant of movement of the crown.
σ½ Resorption more in extensive apical areas.
σ½ Force is required 50-60 gm.
220. Which one is the best tooth movement in orthodontic treatment?
σ¾ Gentle force.
σ½ Short duration of time.
σ½ No tooth movement.
σ½ Tooth movement with tissue damage.
221. Which is the correct answer when don’t apply enough force ?
σ½ Force does not exceed capillary blood pressure.
σ½ Produce ideal tissue change.
σ¾ No tooth movement.
σ½ Tooth movement without tissue damage.
222. Which statement is best when a force is applied to a tooth?
In pressure area bony resorption occur
σ½ In pressure area bony deposition occur
σ½ In tension area bone was resorped
σ½ Neutralization of force occur tooth movement
223. Regarding of tissue change in mild force?
σ½ Force is 25-30 gm
σ½ Low degree of herperaemia seen
σ½ Decrease cellular activity
σ¾ Increase production of osteoclast
224. Which one has changed occur in pressure side due to mild force?
σ½ PDL are stretched
σ¾ Decreased capillary blood supply
σ½ Proliferation of cellular activity
σ½ Bone resorption occur
225. What are the change occur in tension side ?
σ½ PDL are compressed
σ½ Increased vascular supply
σ½ Decreased cellular activity
σ¾ Deposition of bone occur
226. Which statement is correct for rapid movement of tooth?
σ½ Old age of the patient
σ½ Depend on the spongy bone
σ½ Distal movement of tooth
σ¾ When ideal force is applied
σ½ Bodily movement of tooth
227. Which statement is correct for Intrusion movement of tooth ?
σ½ Young age of the patient
σ½ Distal movement of tooth26
σ½ When ideal force is applied
σ¾ slow movement of tooth with light force
228. What is the function for fixed appliance?
σ½ Attachment are not fixed to the teeth
σ¾ It allows three dimensional control of teeth
σ½ This device can be removes by the patient
σ½ Force applied by muscle and bones
229. Which statements are correct for advantage of fixed appliance?
σ¾ Multiple tooth movement are done at a time
σ½ Treatment cost is expensive
σ½ Maintain good oral hygiene
σ½ Residual space close is excellent
230. Which statements are correct for removable appliance?
σ½ Removable appliance is complex
σ¾ Tiping movement
σ½ Maintain good oral hygiene
σ½ Only bodily movement is possible
231. Which statements are correct for molar band?
σ½ These are passive appliance
σ¾ It helps in retention
σ½ Arch wire tube is attached to the band
σ½ These are active component
232. Which statements are correct for arch wire?
σ½ These are passive appliance
σ½ It helps in retention
σ½ Arch wire tie to the bracket by elastomer
σ¾ It exert force to the teeth through bracket
These are active component
233. Which statement is correct for separators?
σ½ These are active component
σ½ These are passive component
σ½ It create space for bracket
σ¾ It breaks the interdental contact
234. Which statement is correct for brackets?
σ½ These are active component.
σ¾ Force is transmitted from the arch wire through the bracket.
σ½ Bondable bracket indirectly attached to the teeth
σ½ Bondable bracket indirectly attached to the teeth
235. Which sentence is correct for using elastic?
σ½ Distalisation of upper canine by class III elastic
σ½ To correct open bite by cross elastic
σ¾ Correct class III relation by class III elastic
σ½ To correct cross bite by box elastic
236. Which statement is correct for spring?
σ¾ It is an active component
σ½ To correct rotation by whip spring
σ½ To close the space by open coil spring
σ½ To open the space by close coil spring
237. Which is correct for Adam clasp?
σ¾ It is an retentive component
σ½ To correct rotation by spring
σ½ Foe close the space
σ½ To open space
238. Anterior teeth most likely to be cross bite which of the following mixed malocclusion?
σ½ Proclined upper incisor
Retroclined upper incisor
σ½ Class II div.2
σ¾ Class III
239. Soft tissue profile of a severe skeletal III patient is?
σ½ Convex
Concave
σ½ Point A is ahead
σ½ Point B is ahead
240. Rapid maxillary expansion RME is indicated in case?
σ¾ Posterior cross bite association with relative maxillary crowding
σ½ Class II div 1 cases
σ½ Cleft palate patients with collapsed maxillary arch
σ½ Open bite cases
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