Week by Week
The face begins to form during this week.
What is the 4th week.
This is the first stage of tooth development.
What is the initiation stage?
This developmental disturbance features a tooth that invaginates into itself, creating a tooth within a tooth.
What is Dens in Dente?
The primitive mouth is called this
What is the stomodeum?
The disintegration of the oropharyngeal membrane enlarges this structure.
What is the stomodeum?
The neural plate differentiates during this week.
What is the 3rd week?
This stage of tooth development is the stage when cells begin to differentiate.
What is the Bell Stage?
This congenital disorder results from a failure of proper mitosis and is also known as Trisomy 21.
What is Down syndrome?
This is the term for permanent teeth that have primary predecessors
What is succedaneous?
Hutchinson's incisors are caused by the teratogens of this disease
What is syphilis?
Facial development is completed by this week?
What is the 12th week
During this stage of tooth development, dental tissue types begin secretion in matrix layers
What is the Apposition Stage?
Displacement of ameloblasts to the root during development create this type of developmental disturbance
What is an enamel pearl
This serves as a protective barrier for the enamel organ
What is the outer enamel epithelium?
The tail end of the trilaminar embryonic disc is called this
What is the caudal end?
The tongue begins forming during which week of development?
4th
Tubercle is a phenomenon that occurs during which stage of tooth development?
What is the Cap stage?
A geminated tooth has this type of etiology
What is congenital or hereditary
The periodontal ligament, alveolar bone, and cementum are derived from this
What is the dental sac?
This structure gives rise to the primitive pharynx
What is the foregut?
A cleft lip occurs during which week of development?
Week 4, when the lip is formed
During the cap stage, mesenchymal cells organize the tooth germ into three layers: enamel organ, dental papilla, and this:
What is the dental sac?
Over ingestion of this substance in water can lead to a type of enamel hypoplasia.
What is Fluoride?
Dentin matrix and pulp are derived from this
What is the dental papilla?
A cleft lip is formed when the the maxillary process fails to fuse with this
What is the median nasal process