Tooth Eruption Charts - Namibian Dental Association

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Tooth Eruption Charts

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Tooth Development - Overview

Teeth vary in size, shape and their location in the jaws. These differences enable teeth to work together to help you chew, speak and smile. They also help give your face its shape and form.

The first primary (baby) teeth normally make their appearance in a baby’s mouth round about the age of 6 months. By approximately 25-33 months of age most babies have 20 primary teeth. These primary teeth are then shed and replaced by the erupting permanent teeth at various times throughout childhood. By age 21, all 32 of the permanent teeth have usually erupted.

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Eruption Charts
Primary Teeth

Permanent Teeth

Tooth Numbering & Naming Charts

Each tooth in your mouth has its own specific name and number. This makes it easier to refer to specific teeth when discussing teeth, dental problems and treatment. Dentists in Namibia commonly use the International Standards Organization System of tooth numbering when referring to specific teeth.

The Primary Tooth Arch





Teeth Numbers:  Are Called:
51, 61, 71 & 81   Primary central incisors
52, 62, 72 & 82   Primary lateral incisors
53, 63, 73 & 83   Primary canines or cuspids
54, 64, 74 & 84   First primary molars
55, 65, 75 & 85   Second primary molars







The Permanent Tooth Arch



Teeth Numbers:  Are Called:
11, 21, 31 & 41   Central incisors
12, 22, 32 & 42   Lateral incisors
13, 23, 33 & 43   Canines or cuspids
14, 24, 34 & 44   First premolars or bicuspids
15, 25, 35 & 45   Second premolars or bicuspids
16, 26, 36 & 46   First molars
17, 27, 37 & 47   Second molars
18, 28, 38 & 48   Third molars or wisdom teeth




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