ANATOMY

Detailed explanation-1: -The human dentition, rooted in the maxilla and mandible, consists of 32 teeth in four quadrants, left and right, upper and lower.

Detailed explanation-2: -The right upper part of your mouth is the first quadrant, followed by the top left side (second quadrant). The bottom of your mouth has the opposite designation. The left bottom side is the third quadrant, and the right bottom side is the fourth quadrant.

Detailed explanation-3: -The teeth are arranged in the mouth in 2 arches that contain 2 quadrants each (16 teeth in each arch, 8 teeth in each quadrant in the permanent dentition). The top arch is the maxillary arch and it is fixed. The bottom arch is the mandibular arch and it is capable of movement through the temporomandibular joint.

Detailed explanation-4: -Dentists split the interior of your mouth into four sections or quadrants. The upper portions of your mouth are the first two quadrants, while the lower portions are the third and fourth ones. So, the top right of your mouth’s interior is quadrant one (that’s your right side), while your top left is quadrant two.

Detailed explanation-5: -The oral cavity can be divided into two parts: (1) the oral vestibule, which is the space between the lips or cheeks and the teeth and (2) the oral cavity proper, the region medial to the teeth.