Dentistry: Maxillary Second and Third Molars

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Questions and Answers

What is the position of the maxillary second molar from the median line in the maxilla?

Fifth tooth
Seventh tooth (correct)
Eighth tooth
Sixth tooth

Which of the following is NOT a principal identifying feature of maxillary second molars?

The crown is smaller in overall dimensions than the maxillary first molar
The roots are highly divergent (correct)
There is no cusp of Carabelli
The roots may be coalescent

What can be said about the distal cusps of maxillary second molars?

They are of similar size to those of maxillary first molars
They are absent
They are more developed than those of maxillary first molars
They are less developed than those of maxillary first molars (correct)

What is true about the buccolingual dimensions of the maxillary second molar compared to the maxillary first molar?

<p>They are larger (C)</p> Signup and view all the answers

What is the difference in the number of cusps between maxillary second and first molars?

<p>One less cusp in the maxillary second molar (B)</p> Signup and view all the answers

Study Notes

Maxillary Second Molar

Located as the seventh tooth from the median line in the maxilla.
Identified by the absence of a fifth cusp (cusp of Carabelli).
Roots are less divergent, potentially coalescent (joint together).
Distal cusps (distobuccal and distolingual) are underdeveloped.
Crown is smaller in overall dimensions compared to the maxillary first molar, except for buccolingual dimensions.

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Description

Explore the characteristics of maxillary second molars, including their identifying features, root structure, and dimensions in comparison to maxillary first molars.