Etiology, diagnos
Etiology, diagnosis and
is and treatment p
treatment planning
lanning
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II
II
1) Premature exfoliation of primary canine may indicate: 1) Premature exfoliation of primary canine may indicate:
a) An arch length deficiency. a) An arch length deficiency. b) An arch length excess. b) An arch length excess. c) Skeletal malocclusion. c) Skeletal malocclusion. d) All of the above. d) All of the above.
2) The "ugly duckling " stage in mixed dentition is characterized by: 2) The "ugly duckling " stage in mixed dentition is characterized by:
a) Increase overjet and deep ov
a) Increase overjet and deep overbite.erbite. b) Distoangular axial inclination of both
b) Distoangular axial inclination of both maxillary central and lateral incisors , maxillary central and lateral incisors , with median diastema.with median diastema. c) Transposition of maxillary central and
c) Transposition of maxillary central and lateral incisors.lateral incisors. d) Retroclination of maxillary central and
d) Retroclination of maxillary central and proclination of lateral incisor.proclination of lateral incisor.
3) Class II div. 2 malocclusion is always associated with: 3) Class II div. 2 malocclusion is always associated with:
a) Open bite. a) Open bite. b) Cross bite. b) Cross bite. c) Siccor bite. c) Siccor bite. d) Deep bite. d) Deep bite.
4) Cephalometric is useful in assessing which of the following relationship: 4) Cephalometric is useful in assessing which of the following relationship:
a) Tooth to tooth. a) Tooth to tooth. b) Bone to bone. b) Bone to bone. c) Tooth to bone. c) Tooth to bone. d) All of the above. d) All of the above.
5)
5) The most common etiThe most common etiology of non-skeleology of non-skeletal anterior cross bite is:tal anterior cross bite is:
a) Delayed eruption of permanent teeth. a) Delayed eruption of permanent teeth. b) Over retention of primary incisors. b) Over retention of primary incisors. c) Lack of space for
c) Lack of space for the permanent teeth.the permanent teeth. d) Non of the above.
d) Non of the above.
6) The tooth in the mandibular arch most likely to be malposed in cases of arch length discrepancy is th 6) The tooth in the mandibular arch most likely to be malposed in cases of arch length discrepancy is th
a) 1st molar. a) 1st molar. b) 2nd molar. b) 2nd molar. c) 1st premolar. c) 1st premolar. d) 2nd premolar. d) 2nd premolar.
7) In case of mid-line diastema and a large or inferiorly attached labial frenum: 7) In case of mid-line diastema and a large or inferiorly attached labial frenum:
a) Frenectomy should be done before
a) Frenectomy should be done before the space closure.the space closure. b) Frenectomy should be done after the
b) Frenectomy should be done after the space closure if there is a tendency to space closure if there is a tendency to relapse.relapse. c) Frenectomy should be done either before
c) Frenectomy should be done either before or after the treatment.or after the treatment. d) Non of the above.
d) Non of the above.
8) All are true for supernumerary teeth except: 8) All are true for supernumerary teeth except:
a) Most commonly located in the anterior maxilla. a) Most commonly located in the anterior maxilla.
b) Are often discovered on panoramic radiograph when
b) Are often discovered on panoramic radiograph when child is 6-7 years old.child is 6-7 years old. c) Should be extracted as soon
c) Should be extracted as soon as possible.as possible. d) Causes no harm to
d) Causes no harm to eruption of central incisors.eruption of central incisors.
9) A convex facial profile is associated with the: 9) A convex facial profile is associated with the:
a) Class I jaw relation ships. a) Class I jaw relation ships. b) Class II jaw relation ships. b) Class II jaw relation ships. c) Class III jaw relation ships. c) Class III jaw relation ships. d) Non of the above.
d) Non of the above.
10) Increased tendency of relapse after orthodontic treatment is seen in patient who undergo: 10) Increased tendency of relapse after orthodontic treatment is seen in patient who undergo:
a) Counterclockwise surgical advancement of
a) Counterclockwise surgical advancement of mandible.mandible. b) Increased vertical dimension in face and ac
b) Increased vertical dimension in face and acute gonial angle.ute gonial angle. c) Rotation movement of teeth.
c) Rotation movement of teeth. d) All of above.
d) All of above.
11) Multiple supernumerary and unurupted teeth are characteristic feature of: 11) Multiple supernumerary and unurupted teeth are characteristic feature of:
a) Treacher Collins syndrome. a) Treacher Collins syndrome. b) Ectodermal dysplasia. b) Ectodermal dysplasia. c) Cleidocranial dysplasia. c) Cleidocranial dysplasia. d) Crouzon`s syndrome. d) Crouzon`s syndrome.
12) The most commonly abnormally ( involving the tooth size ): 12) The most commonly abnormally ( involving the tooth size ):
a) Maxillary lateral incisors and 2nd
a) Maxillary lateral incisors and 2nd premolar.premolar. b) Mandibular lateral incisors and 2nd premolar. b) Mandibular lateral incisors and 2nd premolar. c) Maxillary canine and lateral incisors.
c) Maxillary canine and lateral incisors. d) Mandibular canine and lateral incisors. d) Mandibular canine and lateral incisors.
13) Primate space are seen : 13) Primate space are seen :
a) Between permanent maxillary lateral incisor and canine and lower canine and premolar. a) Between permanent maxillary lateral incisor and canine and lower canine and premolar. b) Between deciduous maxillary lateral incisor and canine and lower canine and 1s
b) Between deciduous maxillary lateral incisor and canine and lower canine and 1st molar.t molar. c) Between permanent maxillary 2 and 3 and mandibular
c) Between permanent maxillary 2 and 3 and mandibular deciduous C and D.deciduous C and D. d) Non of the above.
d) Non of the above.
14) Frankforts horizontal plane extents from: 14) Frankforts horizontal plane extents from:
a) Porion to orbitale. a) Porion to orbitale. b) Nasion to porion. b) Nasion to porion. c) Nasion to orbitale. c) Nasion to orbitale. d) Gonion to orbitale. d) Gonion to orbitale.
15) Which of the following statement is correct in regarding the submerged primary molar: 15) Which of the following statement is correct in regarding the submerged primary molar:
a) Tooth is non vital. a) Tooth is non vital. b) The tooth is ankylosed. b) The tooth is ankylosed.
c) There is no permanent successor. c) There is no permanent successor. d) Resoption of root is not evident. d) Resoption of root is not evident.
16) Ideally malocclusion should be treated between the ages of: 16) Ideally malocclusion should be treated between the ages of:
a) 5 and 8 years. a) 5 and 8 years. b) 10 and 12 years. b) 10 and 12 years. c) 12 – 14 years. c) 12 – 14 years. d) Non of the above. d) Non of the above.
17) Asymmetric anterior open bite wi9th normal posterior intercuspation is characteristic of: 17) Asymmetric anterior open bite wi9th normal posterior intercuspation is characteristic of:
a) Finger sucking. a) Finger sucking. b) Mouth breathing. b) Mouth breathing. c) Abnormal swallowing. c) Abnormal swallowing. d) Non of the above. d) Non of the above.
18) In modern population , a strong tendency for crowding of mandibular incisor teeth to develop in the 18) In modern population , a strong tendency for crowding of mandibular incisor teeth to develop in the late teen and early twenties is due to:
late teen and early twenties is due to:
a) Lack of normal attrition in the normal diet. a) Lack of normal attrition in the normal diet. b) Pressure from the erupting 3rd molar. b) Pressure from the erupting 3rd molar.
c) Late mandibular growth. c) Late mandibular growth. d) All of the above.
d) All of the above.
19) The primary 2nd molar teeth has a normal relationship to develop: 19) The primary 2nd molar teeth has a normal relationship to develop:
a) Flush terminal palne. a) Flush terminal palne. b) Mesial step relation ship. b) Mesial step relation ship. c) Distal step relation ship. c) Distal step relation ship. d) Non of the above. d) Non of the above.
20) The radiographic cephalometry was introduced: 20) The radiographic cephalometry was introduced:
a) 1931. a) 1931. b) 1932. b) 1932. c) 1933. c) 1933. d) 1934. d) 1934.
free count free count
