Embryology Basics
This is the study of prenatal development before birth
What is embryology
These visible tissue bands form the major structures of the head and neck. There are six of them.
What are the branchial arches?
The process of tooth formation that begins around the 6th week in the mandibular anterior region
What is odontogenesis?
Enamel is made of this percentage of inorganic material.
What is 96%?
These three primary embryonic layers develop into all the tissues and organs of the body.
What are the ectoderm, mesoderm, and endoderm?
The first brachial arch forms these two major jaw-related structures.
What are the maxilla and mandible?
This stage of tooth development is known as proliferation.
What is the cap stage?
This enamel feature represents the prenatal and natal formation periods
What is the neonatal line?
The primitive mouth that appears during the 4th week of development
What is the stomodeum?
This process forms the palate, cheek, and upper lip.
What is the maxillary process?
These cells form enamel, dentin, and cementum—listed in that order.
Who are ameloblasts, odontoblasts, and cementoblasts?
This type of tooth wear is caused by mechanical forces such as aggressive brushing, often producing notches on roots.
What is abrasion
A failure of fusion between the globular process and maxillary process results in this developmental abnormality.
What is a cleft lip?
The palatine shelves fuse during weeks 8–12. A failure of this fusion results in this condition.
What is a cleft palate?
The primary dental lamina forms these, beginning calcification around 5 months in utero.
What are the primary teeth (or primary tooth buds)?
A hereditary condition causing very short roots, normal crowns, and premature tooth exfoliation.
What is dentin dysplasia?