Typical consequences of dental crowding

 # Which of the following are typical consequences of dental crowding; assuming no primary teeth has been lost prematurely?
A. Overlapping of lower incisors
B. Palatal displacement of upper canines
C. Impaction of 15 and 25 between first premolars and first molars
D. Mesial tipping of 16 and 26

The correct answer is A. Overlapping of lower incisors.

A child with a generalized arch length discrepancy of 2-4mm and no prematurely missing primary teeth can be expected to have moderately crowded incisors. Unless the incisors are severely  protrusive, the long-term plan would be generalized expansion of the arch to align the teeth.

Contemporary Orthodontics, Proffit, Fourth Edition Page 247

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