Question

question 4
the biggest difference between the primary dentition teeth and the
permanent dentition teeth, besides the actual size of teeth is:
the primary teeth arent as strong as permanent teeth
there are no premolars in permanent dentition
the teeth are the same
there are no premolars in primary dentition
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Explanation:

Primary dentition (baby teeth) has 20 teeth: 8 incisors, 4 canines, and 8 molars. Permanent dentition has 32 teeth: 8 incisors, 4 canines, 8 premolars, and 12 molars. So, primary dentition lacks premolars. The first option about strength is a general characteristic but not the key difference in tooth - type composition. The second option is incorrect as permanent dentition has premolars. The third option is wrong as they are different.

Answer:

There are no premolars in primary dentition.