MCQs on Growth and Development - Orthodontics

# Growth site of the mandible is in the :

A. Body
B. Condylar cartilage
C. Coronoid process
D. Ramus

# Maxilla develops by :
A. Endochondral bone formation
B. Intramembranous bone formation
C. cartilage replacement and intramembranous bone formation
D. mostly cartilage replacement and a little by intramembranous

MCQs on Etiology of Malocclusion - Orthodontics

# Malocclusion can be progressive in:
A. Class I
B. Class II
C. Class III
D. Combination of both class I and Class III

# Retained mandibular deciduous central incisors will result in:
A. Lingual eruption of mandibular permanent incisors
B. Labial eruption of mandibular permanent incisors
C. Impaction of mandibular permanent incisors
D. Ankylosis of mandibular permanent incisors

MCQs on Development of Dentition - Orthodontics

# In children, median diastema between maxillary permanent incisors closes with the eruption of:
A. Maxillary permanent first premolars
B. Maxillary permanent lateral incisors
C. Maxillary permanent canines
D. Maxillary permanent second molars

# The average "Leeway space" available in each half of the maxilla is approximately:
A. 0.9 mm
B. 2.9 mm
C. 4.0 mm
D. 6.9 mm