Which type of ridges are only found on maxillary molars?

Oblique ridges are a specific type of ridge that are unique to maxillary molars. These ridges are formed from the union of two cusp ridges that meet at an angle, creating a distinctive diagonal ridge across the occlusal surface of the tooth. In maxillary molars, the oblique ridge typically extends from the mesiobuccal cusp to the distolingual cusp, contributing to the overall anatomy and occlusal function of these teeth.

The presence of oblique ridges provides structural support and plays a role in the mechanics of mastication, allowing for efficient chewing of food. Understanding the anatomy of these ridges is essential for dental professionals, especially when diagnosing and planning treatments that involve occlusion and tooth restoration.

In contrast, while marginal ridges, transverse ridges, and cusp ridges can be found on various types of teeth, including other molars and premolars, they do not possess the characteristic features that define the oblique ridge. This reinforces the significance of identifying oblique ridges specifically on maxillary molars in dental practice and education.