Week by Week
Mitosis and Stages of Tooth Development
Developmental Disturbances & Histological Phenomenon
Miscellanous
Features of Histology
100

The palate is completed during this week.

What is the 12th week

100

The phase of mitosis when chromatin condenses into chromosomes and the nuclear membrane disintegrates.

Prophase

100
This developmental disturbance features a tooth that invaginates into itself, creating a tooth within a tooth.
What is Dens en Dente?
100

The stacked bilateral swellings of tissue that appear inferior to the stomodeum and include the mandibular arch.

What are the branchial arches?

100

**DAILY** **DOUBLE**

basement membrane

200

The neural plate differentiates during this week.

What is the 3rd week?

200

This stage of tooth development is the stage when cells begin to differentiate.

What is the Bell Stage?

200

This papillae is involved in geographic tongue, black hairy tongue, and median rhomboid glossitis

Filiform

200

This is a term that means "the tail end of a structure", such as in the trilaminar embryonic disc.

What is caudal?

200

This part of a cell is where DNA blueprints are found

nucleus

300

The primitive streak begins to form during this week.

What is the 3rd week?

300

The stage of mitosis during which chromosomes divide into two daughter cells and two nuclear membranes reappear.

Telephase

300
This developmental disturbance features an "extra cusp".
What is a tubercle?
300

This period is considered the most critical period of prenatal development.

embryonic period?

300

von Ebner's minor salivary glands are associated with which type of papillae?

Circumvallate

400
The face, neck, and tongue begin development during this week.
What is the 4th week?
400

Macrodontia and Microdontia are developmental disturbances that occur during which stage of tooth development?

What is the Bud Stage?

400
This developmental disturbance has hereditary etiology and features a single-rooted tooth with one pulp cavity with "twinning" in the crown area.
What is gemination?
400

Disintegration of the oropharygeal membrane enlarges the:

stomodeum

400

This is the powerhouse of the cell

mitochondria

500

**DAILY** **DOUBLE**

ectoderm


500

During this stage of tooth development, the tooth germ is in three distinct layers

What is the Cap Stage?

500

This histological phenomenon is known to be caused by anti-seizure medication, certain antibiotics, and some heart medications.

Gingival hyperplasia

500

What is the term for the amount of time it takes for newly divided cells to be completely replaced through a tissue?

Turnover time

500

Cleft lip is a result of failure of the maxillary process to fuse with this

What is the median nasal process?