Part 1 ? Dent Anatomy

[virginiabeach]

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What is a mediotrusive movement? I know laterotrusive but the mediotrusive thing is stumping me.

Which root surface on a mandibular 1 molar doesnt exhibit a longitudinal groove?
a. mesial surface of mesial root
b. distal surface of mesial root
c. mesial surface of distal root
d. distal surface of distal root

Thanks in advance.

 

[hona]

mediotrusive refers to the direction/action of the non-working side. When performing a Left-laterotrusive movement....the right side is simultaneously performing a mediotrusive movement.

the distal surface of the distal root has NO concavity.

hope that helps..
hona