18 Questions
What do ectomesenchymal cells surrounding the dental papillae and connective tissue form during tooth development?
Dental sac
Which part of the enamel organ represents the inner enamel epithelium during the early bell stage of tooth development?
Inner enamel epithelium
What type of cells become star-shaped with elongated cytoplasmic processes in the enamel organ during tooth development?
Polygonal cells
During tooth development, what do the central cells along the concave surface of the enamel organ differentiate into?
Enamel knot
In which stage of tooth development do peripheral cells appear as cuboidal and are known as the outer enamel epithelium?
Cap stage
What happens to the polygonal cells located between the outer and inner enamel epithelium in the advanced cap to early bell stage of tooth development?
They become star-shaped with elongated cytoplasmic processes
What acts as a signaling center in the enamel knot?
Intracellular non collagenous proteins
Where do the epithelial cells of the enamel organ derive their nutrients from?
Capillaries of ectomesenchymal tissue
During which stage do permanent successors for anteriors arise from the lingual extension of the lamina?
Early bell stage
What begins the late bell stage of tooth development?
18th week of intrauterine life
Which structure proceeds amelogenesis and enamel formation at the incisal edges and cusp tips?
Dentine from the odontoblasts
Where do permanent premolars and molars arise from?
Lamina's distal extension
What gives rise to enamel tissue during tooth development?
Dental organ
At what stage does the differentiation of ameloblasts and enamel formation proceed coronally and cervically on all tooth surfaces?
Late bell stage
What does the Hertwig Epithelial Root Sheath (HERS) outline during tooth development?
Future root
When does root formation begin in tooth development?
After the crown has undergone morpho-differentiation
What induces odontoblasts to produce dentine during tooth development?
Hertwig Epithelial Root Sheath
At what junction does the differentiation of ameloblasts and enamel formation start?
Future cemento-enamel junction
Test your knowledge on the development of teeth from advanced cap to early bell stage. Learn about the progression from the dental lamina towards the developing enamel organ and the formation of the dental sac. Based on content from 'Ten Cate's Oral Histology, Development, Structure and Function, 8th Edition'.
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