Smith A. Teething and biting. September 2013.
Available at: http://www.breastfeedingbasics.com
/articles/teething-and-biting
(accessed October 2015).
Source: Are teeth Bones
Source: FDA
Generally, both primary and permanent teeth erupt in pairs, with the process starting with the lower primary central incisors erupting two or more weeks ahead of the upper primary central incisors. Primary teeth look smaller and are whiter than their permanent successors. For details of the timing of the eruption of primary teeth, see ‘Eruption and exfoliation of primary teeth’.
| Eruption and exfoliation of primary teeth | |
|---|---|
| Upper primary teeth | Eruption (months) |
| Central incisor | 8–12 |
| Lateral incisor | 9–13 |
| Canine | 16–22 |
| First molar | 13–19 |
| Second molar | 25–33 |
| Lower primary teeth | Eruption (months) |
| Central incisor | 6–10 |
| Lateral incisor | 10–16 |
| Canine | 17–23 |
| First molar | 14–18 |
| Second molar | 23–31 |
A child should start to lose their primary teeth between six and seven years of age. It is important to preserve and care for the primary teeth as they save a space for their permanent successors and, in the absence of any decay and subsequent infection, help to give the permanent teeth a healthy start. Primary teeth give a child a normal facial appearance, aid speech and enable the child to enjoy a varied, balanced diet.
The Pharmaceutical Journal, PJ, November 2015,
Vol 295, No 7883;295(7883):DOI:10.1211/
PJ.2015.20069598
Does one have: