Oral cavity is divided in two major arches and each of these arches are divided into 2 Quadrants each.
The dental archs are divided into 4 Quadrants:
Maxillary Quadrants:
Right Maxillary Quadrant ( I )
Left Maxillary Quadrant ( II )
Mandibular Quadrants:
Left Mandibular Quadrant ( III )
Right Mandibular Quadrant ( IV )
Each Quadrant has 8 teeth- 3 anterior & 5 posterior teeth.
The Quadrants are divided by an Imaginary line which passes through the central Incissors of both the maxillary and mandibular arches
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