[Tooth development - Root development].

Tooth development begins in the human embryo 28 to 40 days after ovulation. Epithelial cells grow into the ectomesenchymal parts of the jaw. An epithelial protrusion develops.

[Dens invaginatus tooth abnormality].

Dens invaginatus (dens in dente) is a dental anomaly caused by an invagination of the tooth surface during tooth development.

[Denticles: dental pulp calculi].

Denticles (pulp stones) are round to oval hard substance formations of various sizes that occur in the dental pulp or in the area of the pulpal dentin wall. They can occur free, without connection to the pulp wall (free denticles), fused to the pulp wall (adherent denticles) or embedded in the pulp wall (interstitial denticles).

[Enamel pearls].

Enamel pearls are paraplasia. This refers to the formation of enamel at an atypical localisation. Enamel pearls are roundish or crescent-shaped structures.