Short Description
A raised, pointed area on the chewing surface of molars and premolars that helps break down food for effective chewing and digestion.
Long Description
A cusp is a pointed or elevated part of a tooth’s surface, primarily found on molars and premolars. These raised areas help grind and break down food during chewing, making them essential for effective digestion. The number of cusps varies depending on the tooth type, with molars having multiple cusps for efficient grinding and premolars typically having two (hence the term "bicuspid").
Each cusp is strategically positioned to align with the grooves of opposing teeth, ensuring proper occlusion (bite function). Some common cusp names include the mesiobuccal, distobuccal, and lingual cusps on molars. Canine teeth (cuspids) also have a single sharp cusp designed for tearing food.
While cusps are durable, they can become worn down or fractured due to bruxism (teeth grinding), chewing hard foods, or dental trauma. In cases of severe wear, dental restorations such as crowns, onlays, or bonding may be used to rebuild the tooth’s structure and function. Regular dental care helps preserve cusps and prevent excessive wear or damage.