牙尖
Cuspis dentis
- 拉丁语近义词： Cuspis coronae dentis; Cuspid
定义
A cusp is an occlusal or incisal eminence on a tooth. Canine teeth, otherwise known as cuspids, each possess a single cusp, while premolars, otherwise known as bicuspids, possess two each. Molars normally possess either four or five cusps. In certain populations the maxillary molars, especially first molars, will possess a fifth cusp (accessory cusp) situated on the mesiolingual cusp known as the Cusp of Carabelli.
牙尖是牙齿上的咬合面或切缘隆起。尖牙，又称单尖牙，每颗各具一个牙尖；前磨牙，又称双尖牙，每颗各具两个牙尖。磨牙通常具有四个或五个牙尖。在某些人群中，上颌磨牙，尤其是第一磨牙，会在近中舌侧牙尖上具有第五个牙尖（副牙尖），称为卡拉贝利牙尖。
參考資料
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
