Sagittal split osteotomy is used in the treatment of 1) Skeletal class II mandibular retrognathism 2) Skeletal class II maxillary prognathism 3) Skeletal open bite with vertical excess 4) Skeletal deep bite
OrthodonticsAnswer: 1
Convex profile is seen in 1) Class I 2) Class II 3) Class III 4) None of the above
OrthodonticsAnswer: 2
Into how many segments the infant"s gum pad is divided 1) Two in each quardant 2) Three in each quardant 3) Two in each jaw 4) Five in each quardant
OrthodonticsAnswer: 4
The most common local cause of malocclusion 1) Presence of supernumerary teeth 2) Pre mature loss of primary teeth 3) Delayed eruption of permanent teeth 4) Caries lesion on primary teeth
OrthodonticsAnswer: 2
If an excessive overbite is seen immediately upon the eruption of the incisors, which of the following should be suspected? 1) A problem in the vertical relationship of the facial skeleton 2) A problem in width relationships 3) A problem in the formation of the primary teeth 4) None of the above
OrthodonticsAnswer: 1
Which of the following does not lie on the mandible 1) Pogonion 2) Porion 3) Menton 4) Gnathion
OrthodonticsAnswer: 2
Scammon"s growth curve-False is 1) Neural tissue-Most of the growth is complete by 6 years 2) Lymphoid tissue-growth reaches 200% by age 13 and regresses afterwards 3) Genital tissues-most of the growth is completed by the age of puberty 4) None 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
