All of the following are used for closing midline diastema except 1) Lingual arch with finger springs 2) Rubber elastic (or) steel ligature around two teeth 3) Hawley appliance with finger spring 4) None of the above
OrthodonticsAnswer: 2
An ANB angle 2 degree on the cephalogram usually indicates 1) An unfavourable relationship of mandible to maxilla 2) A favourable relationship of maxillary alveolar base to mandibular alveolar base 3) Poor cranial growth with poor prognosis 4) Retruded maxillary incisor
OrthodonticsAnswer: 2
If a particular trait is concordant in a monozygotic trait it indicates 1) Trait is genetically inherited 2) Environmental effect is more 3) Both of the above 4) None of the above
OrthodonticsAnswer: 1
During retraction of anteriors into extraction space, lateral incisors are prevented from retraction. This may 1) Cause canine to move slowly 2) No effect on canine retraction 3) Lead to collapse of the arch 4) Lead to loss of anchorage
OrthodonticsAnswer: 2
Relapse after orthodontic treatment can be totally prevented by 1) Inactive fixed appliance 2) Hawley"s retainer worn for 1 year 3) Wearing activator for 3 months 4) None of the above, some degree of relapse is normal
OrthodonticsAnswer: 4
Rotation of teeth is best corrected by 1) Hawley"s appliance 2) Buccal retractor 3) Fixed appliance 4) All of the above
OrthodonticsAnswer: 3
Which of the following landmarks present in the angel of mandible 1) Gnathion 2) Gonion 3) Pogonion 4) Porion
OrthodonticsAnswer: 2
If a flush terminal plane (FTP) is present in the deciduoud dentition then the molars will erupt 1) Initially in class I occlusion 2) Initially in class II occlusion 3) Initially in class III occlusion 4) Initially end to end relationship
