Concept:Types of human teeth and their typical number in adults.Explanation:Adult humans have different types of teeth: incisors, canines, premolars, and molars.Premolars are located behind the canines and are used for crushing and grinding food.In adult human beings, there are typically 8 premolars, with 2 on each side of the upper jaw and 2 on each side of the lower jaw.Answer:8