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It is the first permanent tooth to appear in the oral
cavity.
Mandibular 1st molar
Age of eruption of mandibular 1st molar
6-7 years old
Widest mesiodistal diameter of all molars
Mandibular 1st molar
Mesiobuccal cusp & Distobuccal cusp are equal in height and separated by
Mesiobuccal groove
Taller and more conical than your buccal cusps
Lingual cusp
A bulbous prominent on the cervical third
of the crowns of your molars.
Buccal cervical ridge
The apex of your mesial root is said to be in line with your mesiobuccal cusp tip. The apex of the mesial root is in line with the mesiobuccal cusp tip.
Mandibular 1st molar
Mesiolingual cusp and Distolingual cusp are equal in size and separated by
Lingual groove
Coming from the tips of the cusp towards the center of the occlusal surface.
Triangular ridges
The root that is said to be the broadest
buccolingually.
Mesial root
A tooth that will have a distal marginal groove crossing the distal marginal ridge
Mandibular 1st molar
It occupies the posterior segment of
each mandibular quadrant.
Mandibular molars
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