premolar

Thân thiện

A dentist points to a patient's premolar during a checkup.

Definition

Noun: A premolar is one of the eight teeth in a human adult, located between the canine teeth and the molars. Each premolar typically has one or two cusps (points) on its chewing surface and is used for crushing and grinding food.

Usage

Premolars are permanent teeth that replace the primary (baby) molars. They are part of the chewing apparatus. - The dentist said my premolar has a small cavity. - Humans have two premolars in each quadrant of the mouth.

Advanced Usage

• In dental anatomy, the first premolar and second premolar in each quadrant have slightly different shapes and functions.
• The term is often used in comparative anatomy to describe similar teeth in other mammals.

Variants and Related Words

• Bicuspid: This is a synonym for premolar, referring specifically to the two-cusped structure common to most human premolars.

Synonyms

• Bicuspid

Antonyms

• There are no direct antonyms, as it is a specific anatomical term. Contrasting terms would be other tooth types: incisor, canine, molar.

Học thuật

Noun

1. a tooth having two cusps or points; located between the incisors and the molars

Từ đồng nghĩa

• bicuspid