What is dental ectomesenchyme?
What is dental ectomesenchyme?
The dental follicle is a loose ectomesenchyme-derived connective tissue surrounding the enamel organ and the dental papilla of the developing tooth germ before eruption.
What is ectomesenchymal origin?
The origin of the ectomesenchyme is disputed. It is either like the mesenchyme, arising from mesodermic cells, or conversely arising from neural crest cells. The neural crest is a critical group of cells that form in the cranial region during early vertebrate development.
What is the difference between mesenchyme and ectomesenchyme?
The key difference between mesenchyme and ectomesenchyme depends on the type of cells they contain. Mesenchyme contains loose cells that migrate easily to form the ground tissue of collagen, and bone and cartilage tissue while ectomesenchyme contains neural crest cells and forms the tissues of neck and cranium.
What is ectomesenchymal condensation?
A condensation of ectomesenchymal cells called the dental sac or follicle surrounds the enamel organ and limits the dental papilla.
Can dental papilla grow back?
As with all gingival tissue, an interdental papilla is not able to regenerate itself, or grow back, if lost from recession due to improper brushing. If it deteriorates, it is gone permanently. Restoring papillae around dental implants is a challenge for periodontists.
Can you replace a missing tooth?
An implant is a great way to replace a missing tooth. This solution feels and acts the most like a natural tooth when chewing, brushing or smiling. The implant replaces the actual root of the missing tooth and heals in the bone for several months.
What is tooth germ?
Teeth develop from the tooth germ, which is an aggregation of cells derived from the first branchial arch and the neural crest. The tooth germ is composed of the enamel organ, the dental papilla, and the dental follicle.
Is mesenchyme and mesoderm same?
Mesenchyme: Mesenchyme is a part of the mesoderm of an embryo which develops into connective tissue, cartilage, bone, etc. Mesoderm: Mesoderm is one of the three germ layers in the embryo of a metazoan animal.
What is Morphodifferentiation in tooth?
Morphodifferentiation refers to morphogenesis of the enamel organ, via folding of the IEE layer, into a three-dimensional structure that resembles the future tooth crown.