enamel organs การใช้
- The enamel organ, including the dental papilla, and ameloblasts function similarly.
- Dens invaginatus is a developmental anomaly resulting from invagination of a portion of crown forming within the enamel organ during odontogenesis.
- The " enamel organ " is composed of the outer enamel epithelium, inner enamel epithelium, stellate reticulum and stratum intermedium.
- Once this occurs, junctional epithelium forms from reduced enamel epithelium, one of the products of the enamel organ, and divides rapidly.
- The Ca2 + mainly comes from the enamel organ, and not the dental papilla, by either passive, extracellular transportation or active, intracellular transportation.
- Dens invaginatus is a malformation of teeth most likely resulting from an infolding of the dental papilla during tooth development or invagination of all layers of the enamel organ in dental papillae.
- When the tissues of the developing tooth are seen under a microscope, different cellular aggregations can be identified, including structures known as the enamel organ, dental lamina, and dental papilla.
- Immediately after the eruption enamel is covered by a specific film : Nasmyth's membrane or'enamel cuticle', structure of embryological origin is composed of keratin which gives rise to the enamel organ.
- The tooth bud ( sometimes called the tooth germ ) is an aggregation of cells that eventually forms a tooth and is organized into three parts : the enamel organ, the dental papilla and the dental follicle.
- The "'cervical loop "'is the location on an enamel organ in a histologic term indicating a specific epithelial structure at the apical side of the tooth germ, consisting of loosely aggregated stellate reticulum in the center surrounded by stratum intermedium.
- PCP-2 is expressed in non-neural tissues during development, including the first forming somite in chick, known as S2, the lens fiber cells of the eye, in the esophagus, scleretome, kidneys, lungs, enamel organs ( early incisor and molar teeth ), and the cochlear ducts of the inner ear.