The development of the teeth explained in an extremely simple way.

If you are completely new to embryology and you want to understand it quickly, this should be the first video you watch:
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SUMMARY FOR YOUR NOTES:
the shape of the face is not only the result of the expansion of paranasal sinuses, but it is also the result of the growth of the mandible and maxilla in order for the teeth to grow into them.
teeth arise from mesenchyme and neural crest cells
oral epithelium forms the dental lamina along upper and lower jaw
dental lamina gives rise to dental buds
once buds invaginate, this is the cap stage
in the cap stage there is an outer and inner dental epithelium
the stellate reticulum is the central core of loosely woven tissue
mesenchyme/ neural crest cells form the dental papilla
dental cap grows into the bell stage
mesenchyme differentiates into odontoblasts that produce dentin
other cells of dental papilla form the pulp of the tooth
ameloblasts from the inner dental epithelium produce enamel (known as enamel formers)
enamel knot regulates early tooth development
enamel is first laid at the apex then spreads down
formation of the root of the tooth begins when dental epithelium penetrates underlying mesenchyme and forms the root sheath
mesenchyme on outside of tooth differentiates into cementoblasts which produce cementum
outside this layer more mesenchyme gives rise to the periodontal ligament
eruption of deciduous / milk teeth occurs from 6 months to 2 years after birth
permanent teeth appear at 6 years after birth