MDS PREP

A 12-year-old boy was subjected to rapid maxillary expansion (RME) for the correction of bilateral posterior crossbite. The maximum separation of the midpalatine suture will occur
1) In the molar region
2) In the premolar region
3) At posterior nasal spine
4) Between two central incisors

Orthodontics Answer: 4

A child in primary dentition period had thumb sucking habit. There is slight anterior open bite. Immediate treatment is
1) Fixed palatal crib
2) Removable habit breaking appliance
3) Myofunctional therapy
4) Periodic observation until permanent incisors develop

Orthodontics Answer: 4

The centre of rotation for bodily movement of tooth is located
1) Apical one-third of root
2) At infinity
3) Apical two-thirds
4) Middle one-thirds of root

Orthodontics Answer: 2

A class II div I case is treated by a fixed appliance. Premolar extraction spaces are closed. The most expected molar relation
1) Class II only
2) Class I
3) Class III
4) Class II div I subdivision

Orthodontics Answer: 2

Pterygoid response to activator is checked at
1) 2-3 weeks
2) 6-8 weeks
3) 8-10 weeks
4) 10-12 weeks

Orthodontics Answer: 2

A boy aged 14 years attends with a class I malocclusion. Moderate crowding in upper and lower anterior segment, primary upper canines retained. Radiographs show erupting permanent upper canines. Treatment is
1) Wait until upper primary canines shed naturally
2) Extract upper primary canines only and wait until permanent canine erupt
3) Extract upper "C" & "4"s & lower "4"s & maintain space for eruption of upper permanent canines
4) None of the above

Orthodontics Answer: 3

Cephalometrics is used in orthodontics for all of the following except
1) Study growth changes
2) To evaluate soft tissues
3) Aid in diagnosis and treatment plan
4) To treat malocclusion

Orthodontics Answer: 4

MDS PREP

A 12-year-old boy was subjected to rapid maxillary expansion (RME) for the correction of bilateral posterior crossbite. The maximum separation of the midpalatine suture will occur
1) In the molar region
2) In the premolar region
3) At posterior nasal spine
4) Between two central incisors

A child in primary dentition period had thumb sucking habit. There is slight anterior open bite. Immediate treatment is
1) Fixed palatal crib
2) Removable habit breaking appliance
3) Myofunctional therapy
4) Periodic observation until permanent incisors develop

The centre of rotation for bodily movement of tooth is located
1) Apical one-third of root
2) At infinity
3) Apical two-thirds
4) Middle one-thirds of root

A class II div I case is treated by a fixed appliance. Premolar extraction spaces are closed. The most expected molar relation
1) Class II only
2) Class I
3) Class III
4) Class II div I subdivision

Pterygoid response to activator is checked at
1) 2-3 weeks
2) 6-8 weeks
3) 8-10 weeks
4) 10-12 weeks

Cephalometrics is used in orthodontics for all of the following except
1) Study growth changes
2) To evaluate soft tissues
3) Aid in diagnosis and treatment plan
4) To treat malocclusion

Undesirable side-effect commonly associated with finger spring
1) Pain
2) Gingival inflammation
3) Intrusion of tooth
4) Mobility of tooth

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MDS PREP

A 12-year-old boy was subjected to rapid maxillary expansion (RME) for the correction of bilateral posterior crossbite. The maximum separation of the midpalatine suture will occur1) In the molar region2) In the premolar region3) At posterior nasal spine4) Between two central incisors

A child in primary dentition period had thumb sucking habit. There is slight anterior open bite. Immediate treatment is1) Fixed palatal crib2) Removable habit breaking appliance3) Myofunctional therapy4) Periodic observation until permanent incisors develop

The centre of rotation for bodily movement of tooth is located 1) Apical one-third of root2) At infinity3) Apical two-thirds4) Middle one-thirds of root

A class II div I case is treated by a fixed appliance. Premolar extraction spaces are closed. The most expected molar relation1) Class II only2) Class I3) Class III4) Class II div I subdivision

Pterygoid response to activator is checked at1) 2-3 weeks2) 6-8 weeks3) 8-10 weeks4) 10-12 weeks

Cephalometrics is used in orthodontics for all of the following except1) Study growth changes2) To evaluate soft tissues3) Aid in diagnosis and treatment plan4) To treat malocclusion

Undesirable side-effect commonly associated with finger spring1) Pain2) Gingival inflammation3) Intrusion of tooth4) Mobility of tooth

Explore by subjects

A 12-year-old boy was subjected to rapid maxillary expansion (RME) for the correction of bilateral posterior crossbite. The maximum separation of the midpalatine suture will occur
1) In the molar region
2) In the premolar region
3) At posterior nasal spine
4) Between two central incisors

A child in primary dentition period had thumb sucking habit. There is slight anterior open bite. Immediate treatment is
1) Fixed palatal crib
2) Removable habit breaking appliance
3) Myofunctional therapy
4) Periodic observation until permanent incisors develop

The centre of rotation for bodily movement of tooth is located
1) Apical one-third of root
2) At infinity
3) Apical two-thirds
4) Middle one-thirds of root

A class II div I case is treated by a fixed appliance. Premolar extraction spaces are closed. The most expected molar relation
1) Class II only
2) Class I
3) Class III
4) Class II div I subdivision

Pterygoid response to activator is checked at
1) 2-3 weeks
2) 6-8 weeks
3) 8-10 weeks
4) 10-12 weeks

Cephalometrics is used in orthodontics for all of the following except
1) Study growth changes
2) To evaluate soft tissues
3) Aid in diagnosis and treatment plan
4) To treat malocclusion

Undesirable side-effect commonly associated with finger spring
1) Pain
2) Gingival inflammation
3) Intrusion of tooth
4) Mobility of tooth