Types of cells
These cells induce cells in the dental papilla to differentiate and become odontoblasts to begin dentin formation
Ameloblasts
This tissue gives rise to the dental and vestibular lamina
Primary epithelial band
The lamina from which adult teeth develop if there is no primary tooth.
General lamina
This stage of tooth development is characterized by rounded, localized growth of epithelial cells surrounded by proliferating mesenchymal cells.
Bud stage
Thin layer separating epithelium from mesenchyme.
Basement membrane
Star-shaped tissue in enamel organ, rich in glycosaminoglycans.
Stellate reticulum
This and the papilla constitute the dental follicle
Dental organ
Induces odontoblast and cementoblast differentiation
Cervical loop
The process by which the shape and structure of the tooth develop during the cap stage.
Morphodifferentiation
Cytoplasmic structures providing mechanical support in epithelial tissue.
Tonofilaments
Cell structures that connect adjacent epithelial cells.
Desmosomes
The dental lamina develops as a sheet of oral epithelium that pushes down into what type of tissues in tooth formation
Mesenchymal
Layer between the internal enamel epithelium and stellate reticulum.
Stratum intermedium
Late bell stage when dental hard tissues are forming
Appositional stage
Enzyme present in stratum intermedium cells.
Alkaline phosphatase
Cells that secrete cementoid to form cementum.
Cementocytes
Surrounding tissue of the tooth germ (non-specific).
Dental follicle
Junctional zone where internal and external epithelium meet.
Cervical loop
This begins at the late bell stage of tooth development (think about dentin/enamel).
Cusp formation
Hydrophilic molecules that attract water in dental organ.
Glycosaminoglycans
The rapid proliferation of these cells in the oral ectoderm lead to the formation of the primary epithelial band (high mitotic activity).
Basal cells
Later-formed crystallizing centers of this allow for transformation of predentin into dentin
Hydroxyapatite
Intercellular connections facilitating communications.
Gap junctions
Stage where ameloblasts secrete enamel matrix proteins; utilizes Tomes' processes.
Secretion stage
Structural proteins in dentinal matrix.
Collagen fibers