Molar General Introduction

Question 1

How many cusps are normally found on a…

a. Maxillary molar?
b. Mandibular molar?

Answer 1

Cusps

a. 4
b. 5

Question 2

How do the MD dimensions compare with the FL dimensions of a…

a. Maxillary molar?
b. Mandibular Molar?

Answer 2

Dimensions

a. FL>MD
b. MD>FL

Question 3

How do the MD dimensions compare with the OC dimensions of a…

a. Maxillary molar?
b. Mandibular Molar?

Answer 3

Dimensions

a. MD>OC
b. MD>OC

Question 4

How does the number of roots found maxillary molars compare with mandibular molars?

Answer 4

More root in maxillary (3) than mandibular (2)

Question 5

What occlusal anatomical feature divides the mesial from the distal of the occlusal table of a maxillary molar?

Answer 5

Oblique ridge

Question 6

Which molar typically will have a dimensional taper from lingual to facial?
a. All other taper from facial to lingual

Answer 6

Maxillary 1st molar (very little taper)

Question 7

From a facial view, where are the mesial contacts and distal contacts of molars located?

Answer 7

Mesial (Occlusal and Middle 1/3 junction) Distal (Middle 1/3)

Question 8

From an occlusal view, where are the proximal contacts of posterior teeth located, the FL midline of the crown?

Answer 8

Most are buccal to the midline (maxillary 1st distal is in the middle)

Question 9

What is the geometric proximal outline of a…

a. Maxillary molar?
b. Mandibular molar?
c. Why is this so?

Answer 9

Outline

a. Trapezoid (short end at the occlusal)
b. Rhomboidal
c. It is rhomboidal to taper towards the lingual