MICROANATOMY

Detailed explanation-1: -The primary teeth are grouped into four quadrants, each containing two incisors, a canine, and two molars.

Detailed explanation-2: -In the primary dentition, there are a total of twenty teeth: five per quadrant and ten per arch. The eruption of these teeth ("teething") typically begins around the age of six months and continues until 25–33 months of age during the primary dentition period.

Detailed explanation-3: -These teeth start to erupt at the age of 13 years. There are 16 teeth in each arch and eight in each quadrant. Incisors are the eight middlemost teeth (4 up, 4 down) both on the upper and lower jaw. Canines are pointed teeth which are another four teeth (2 up, 2 down) just outside the incisors.