Landmarks on tooth surfaces |Part2| RIDGES | Dental Terminology | Tooth landmarks | Dental Anatomy

A ridge is any linear elevation on the surface of a tooth and is named according to its location (e.g., buccal ridge, incisal ridge, marginal ridge).

Marginal ridges are the rounded borders of the enamel that form the mesial and distal margins of the occlusal surfaces of premolars and molars, as well as the mesial and distal margins of the lingual surfaces of the incisors and canines.

Triangular ridges descend from the tips of the cusps of molars and premolars toward the central part of the occlusal surfaces. They are so named because the slopes of each side of the ridge are inclined to resemble two sides of a triangle. They are named after the cusps to which they belong.

The oblique ridge is a ridge crossing obliquely the occlusal surfaces of maxillary molars and formed by the union of the triangular ridge of the distobuccal cusp and the distal cusp ridge of the mesiolingual cusp.

Check out our other videos on Landmarks on tooth surfaces with the following links

PART 1: CUSPS -    • Landmarks on tooth surfaces |Part1| C...  
PART 3: FOSSA-    • Landmarks on tooth surfaces |Part3| F...  
PART 4: GROOVES AND PITS-    • Landmarks on tooth surfaces |Part4| G...  
PART 5: CINGULUM, TUBERCLE, MAMELONS-    • Landmarks on tooth surfaces |Part5| C...  

Reference for content-
Wheeler’s Dental Anatomy, Physiology and Occlusion 10th edition

Also for your reference, check out the following video for better understanding.

SURFACES AND RIDGES OF THE TOOTH-    • Surfaces and Ridges of teeth | Tooth ...  

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