3 Questions
What is the shape of the pulp chamber's cervical outline form in the maxillary first molar?
Rhomboid
Which one of the following angles in the maxillary first molar is an acute angle?
Mesiobuccal angle
Where is the mesiopalatal canal orifice located in the maxillary first molar?
Palatal and mesial to the mesiobuccal orifice
Study Notes
- Maxillary first molar is the largest tooth in volume and has complex root and canal anatomy.
- Four pulp horns are present in the pulp chamber.
- The pulp chamber's cervical outline form has a rhomboid shape.
- The mesiobuccal angle is an acute angle, the distobuccal angle is an obtuse angle, and the palatal angles are right angles.
- The orifices of the palatal, distobuccal, and mesiobuccal canals form a triangle known as the molar triangle.
- The palatal root curves buccally at the apical one-third.
- The mesiopalatal canal orifice is located palatal and mesial to the mesiobuccal orifice.
- The orifice of the mesiobuccal canal can be round, oval, or flat.
- Videos and scans are available online for rotational views of the teeth.
- The maxillary first molar is one of the most complex teeth in terms of anatomy.
Think you know everything about the maxillary first molar? Test your knowledge with our quiz! From its unique root and canal anatomy to the shape of its pulp chamber, this tooth has plenty of fascinating features to explore. See if you can identify the different angles of the tooth and the shape of the molar triangle. Plus, learn about the curving of the palatal root and the location of the mesiopalatal canal orifice. Watch videos and scans for a full rotational view of this
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