ANATOMY

Detailed explanation-1: -At first, i.e., during the six weeks of intrauterine life, the tooth germ starts growing, and the cells forming the mineralized portion start differentiating. Thereafter, dentin and enamel matrices are laid down by these cells, which later start mineralizing.

Detailed explanation-2: -Crown and Root Formation The outer two layers of your teeth, enamel and dentin, form during the crown stage. Ameloblast cells are responsible for creating enamel, while odontoblast cells create dentin. These cells come from the enamel epithelium and the dental papilla.

Detailed explanation-3: -Crown development. Tooth formation, or odontogenesis, starts with primary teeth around weeks 5 to 6, and succedaneous teeth around weeks 9 to 10. Odontogenesis is similar to neurulation ←, teeth arise from invaginations of epithelium, derived from ectoderm .

Detailed explanation-4: -Tooth development is commonly divided into the following stages: the initiation stage, the bud stage, the cap stage, the bell stage, and finally maturation.

Detailed explanation-5: -The first teeth to erupt in the oral cavity are the deciduous mandibular central incisors at approximately 5 to 8 months of age, followed by maxillary central incisors a month or two later. In general, by the age of 19 months, the child has a total of 12 erupted deciduous teeth.