Tooth Development

Dental Lamina

Posted by Dr. Chetan 6 December, 2007 (2) Comment

It is a band of epithelium that has invaded the underlying ectomesenchyme along each of the horse shoe shaped dental arches. Dental lamina serve as primordium for deciduous teeth. It is the first formed part during the tooth development.

2-3 weeks after the rupture of the bucopharyngeal membrane, age of embryo being 6 weeks old, certain basal cells proliferate more rapidly and this leads to the formation of the dental lamina.
Permanent molars arise from the distal extension of the dental lamina.