M D Mesial Aspect Geometric Outline Quiz
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Questions and Answers

What is the shape of the mesial aspect of a permanent molar?

  • Trapezoidal (correct)
  • Triangular
  • Rectangular
  • Circular

Where is the mesial contact area located on a permanent molar?

  • At the junction between middle and occlusal thirds (correct)
  • At the occlusal third
  • At the distal surface
  • Near the cervical ridge

How many roots are typically seen in the distal aspect of a permanent molar?

  • Three roots (correct)
  • No roots
  • Five roots
  • Two roots

Which aspect of a permanent molar shows disto-buccal convergence and obtuse angles?

<p>Distal aspect (D)</p> Signup and view all the answers

What is the total number of surfaces in a maxillary permanent 1st molar?

<p>Six surfaces (B)</p> Signup and view all the answers

Which tooth type is discussed in the lecture outline that focuses on occlusion of permanent anterior teeth?

<p>Upper premolar (D)</p> Signup and view all the answers

If a tooth has surfaces described as BUCCAL, PALATAL, MESIAL, and DISTAL, how many surfaces does it have in total?

<p>Four surfaces (C)</p> Signup and view all the answers

In terms of surface anatomy, what is the significance of the term 'OCCLUSAL' in a permanent molar?

<p>Refers to the chewing surface (C)</p> Signup and view all the answers

Which aspect of the tooth has a trapezoidal geometric outline?

<p>Occlusal (C)</p> Signup and view all the answers

Which cusp is broader, shorter, and less sharp on the mesio-buccal aspect of the tooth?

<p>ML cusp (B)</p> Signup and view all the answers

What is an anatomical landmark observed on the lingual aspect of the tooth?

<p>Lingual developmental groove (A)</p> Signup and view all the answers

Where can the Tubercle of Carabelli be found?

<p>Mesial aspect (D)</p> Signup and view all the answers

What geometric outline is typically observed on the distal aspect of a permanent molar?

<p>Rhomboidal (B)</p> Signup and view all the answers

Which aspect of a permanent molar demonstrates a concave buccal outline for a short distance?

<p>Mesial aspect (C)</p> Signup and view all the answers

What is the significance of the term 'Root trunk' in the description of the mesial and distal aspects of a permanent molar?

<p>Referring to the length of the roots (B)</p> Signup and view all the answers

What anatomical landmark is identified by the presence of a wider pulp chamber bucco-lingually compared to mesiodistally in a permanent molar?

<p>Oblique ridge (C)</p> Signup and view all the answers

Which aspect of a maxillary permanent molar forms a semicircle with the distal slope of the DL cusp?

<p>Lingual aspect (B)</p> Signup and view all the answers

What is the shape of the mesial outline of a maxillary permanent molar up to the contact area at the junction of the occlusal and middle 1/3?

<p>Nearly straight (C)</p> Signup and view all the answers

Which developmental groove extends on the root trunk of a maxillary permanent molar?

<p>Lingual developmental groove (C)</p> Signup and view all the answers

On the buccal aspect of a maxillary permanent molar, which root trunk measurement is provided?

<p>4 millimeters DB (B)</p> Signup and view all the answers

What is the significance of the term 'OCCLUSAL' in surface anatomy of permanent molars?

<p>It refers to the chewing surface of the tooth (A)</p> Signup and view all the answers

Where is the distal contact area typically located on a permanent molar?

<p>Adjacent to the mesial contact area, towards the front of the tooth (C)</p> Signup and view all the answers

What is a common characteristic of the root morphology in lower second and third molars?

<p>Three separate roots (B)</p> Signup and view all the answers

In terms of tooth morphology, what is a significant difference between primary maxillary molars and permanent maxillary molars?

<p>Primary molars have fewer cusps compared to permanent molars (C)</p> Signup and view all the answers

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