Cheek teeth are Premolars and Molars.

Premolars:
Premolars are the teeth located between the canines and molars. In humans, there are eight premolars, four on each side of the upper and lower jaws. They are also known as bicuspids because they usually have two cusps or points on the chewing surface. The primary function of premolars is to assist in grinding and chewing food. They have a broad and flat surface that helps in crushing and grinding food particles before they are further broken down by the molars.

Molars:
Molars are the posterior teeth located at the back of the mouth. In humans, there are usually twelve molars, six on each side of the upper and lower jaws. They are the largest and strongest teeth in the mouth, designed for grinding and crushing food. Molars have a larger surface area with multiple cusps that aid in breaking down food into smaller particles, making it easier to digest.

Importance of Cheek Teeth:
Cheek teeth, including premolars and molars, play a crucial role in the process of mastication or chewing. They are responsible for breaking down food into smaller pieces, increasing the surface area for enzymes to act upon, and facilitating the mixing of saliva with food. This initial breakdown of food is essential for proper digestion and absorption of nutrients in the gastrointestinal tract.

Premolars and molars also help in maintaining the vertical dimension of the face and providing support to the cheeks. They contribute to the overall facial aesthetics and help in maintaining proper alignment of the teeth.

Conclusion:
In conclusion, cheek teeth refer to premolars and molars. These teeth are located at the back of the mouth and are responsible for grinding and chewing food. Premolars have two cusps and assist in the initial breakdown of food, while molars are larger, stronger teeth with multiple cusps that further grind and crush food particles. Cheek teeth are essential for proper digestion and maintaining facial aesthetics.