When primary lower first and second molars lost in 8-year-old patient, space is best maintained by 1) Multiple space maintainer 2) A functional appliance 3) Bilateral non-functional space maintainers 4) Band and loop space maintainer
OrthodonticsAnswer: 3
A headgear applied to the maxillary molars can serve to improve anterioposterior skeletal dysplasia by 1) Downward and backward rotation of the maxilla 2) Posterior repositioning of the maxillary teeth within the maxilla 3) Rapid palatal expansion 4) Redirection of maxillary growth
OrthodonticsAnswer: 4
Reverse headgear (maxillary protraction headgear) is used mainly 1) To retract maxilla in maxillary skeletal protrusion 2) To induce the growth of maxilla in skeletal retrusion 3) To inhibit the growth of mandible in class III skeletal relation 4) To induce the growth of mandible in class III skeletal relation
OrthodonticsAnswer: 2
Stationary anchorage refers to 1) Teeth that are not free to tilt 2) Anchorage provided extraorally 3) Teeth that are stationary 4) Anchorage provided intermaxillary elastics
OrthodonticsAnswer: 1
Mandible closely follows the growth curve of 1) Lymphoid tissue 2) Neural tissue 3) General tissues 4) All of the above
OrthodonticsAnswer: 3
Frankel appliance confined to mixed dentition period is 1) Frankel I 2) Frankel II 3) Frankel III 4) Frankel IV
OrthodonticsAnswer: 4
Height of maxilla mainly increased by 1) Sutural growth 2) Alveolar growth 3) Surface apposition at tuberosity 4) Surface apposition on anterior surface
OrthodonticsAnswer: 2
Gingival fibres take.................days for reorganisation after rotation 1) 150 2) 200 3) 230 4) 300
