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NBDE Part 2 Practice Exam Series 43
Question 1: In which of the following clinical situation a convex facial profile will be seen?
A. Skeletal Class I
Skeletal Class ii
Skeletal Class III
In cleft lip and palate
Question 2: In a 12 yr old boy undergoing fixed orthodontic treatment, his mandibular first molar which is acting as an anchor unit is allowed to tip lingually. This is a type of
A. Complex anchorage
B. Simple anchorage
C. Compound anchorage
D. Reciprocal anchorage
Question 3: Which is the most common reason behind non-skeletal anterior cross bite?
A. Delayed eruption of permanent teeth
B. Over retention of deciduous incisors
C. Lack of space for the permanent teeth
D. Premature exfoliation of canine
Question 4: In which of the clinical situation will the maxillary posterior teeth would occlude in the central fossa of the mandibular posterior teeth?
A. Open bite
B. Class III malocclusion
C. Class II malocclusion
Question 5: Which anatomical tissue is first to react whenever an orthodontic force is applied?
A. Alveolar bone
C. Periodontal ligament