Question 1

MATCHING
An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation.
-Successional lamina

Accepted Answer

The successional lamina is responsible for the development of permanent incisors, canines, and premolars, as it is a dental lamina extension that gives rise to these teeth.

Question 2

MATCHING
An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation.
-Vestibular lamina

Accepted Answer

The vestibular lamina contributes to the formation of the mucobuccal fold, which is the fold of tissue connecting the mucous membrane of the cheeks (buccal mucosa) and the lips to the alveolar mucosa of the maxilla and mandible.

Question 3

The first stage of development of enamel organ is the cap stage.

Accepted Answer

The bud stage is the first stage of development of enamel organ.This stage begins with budding from the dental lamina at the 10 thickened areas in each arch.Initially the buds look like blobs of cells projecting into the deeper underlying connective tissue.

Question 4

The dental lamina thickens first at the anterior midline.

Accepted Answer

The initial thickening of the lamina dura is gradual.It occurs initially in the area of the anterior midline and slowly spreads posteriorly toward the molar region.It takes only several weeks for this thickening to extend to the future sites of the deciduous molars.

Question 5

MATCHING
An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation.
-Dental papilla

Accepted Answer

The dental papilla is a mass of mesenchymal cells that eventually forms the dental pulp, the innermost part of the tooth containing nerves and blood vessels.

Question 6

The permanent molars develop from successional lamina.

Accepted Answer

The permanent molars are nonsuccessional because they do not replace primary teeth.These teeth develop from a posterior growth of the dental,or general,lamina.By contrast,the incisors,canines,and premolars are successional teeth.They develop from the successional lamina,which is an extension to the lingual side of each primary tooth.

Question 7

MATCHING
An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation.
-Dental sac

Accepted Answer

The dental sac, also known as the dental follicle, gives rise to the cementum, periodontal ligament, and the alveolar bone, but among the options provided, "Forms cementum" is the most directly related to the dental sac's role in tooth development.

Question 8

MATCHING
An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation.
-Enamel organ

Accepted Answer

The enamel organ is responsible for the formation of enamel, which is the hard, outer surface layer of teeth.

Question 9

MATCHING
An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation.
-Dental lamina

Accepted Answer

The dental lamina is the forerunner of the primary tooth germ.

Answer: A
 The dental lamina forms the tooth germs that will develop into the permanent incisors, canines, and premolars.

Answer: D
 The mucobuccal fold is a structure in the oral cavity that is formed from the dental lamina.

Answer: C
 The enamel organ is formed from the dental lamina and is responsible for the formation of enamel.

Answer: F
 The dental pulp is not formed from the dental lamina.

Quiz 19: Dental Lamina and Enamel Organ

MATCHING An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation. -Successional lamina

MATCHING An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation. -Vestibular lamina

The first stage of development of enamel organ is the cap stage.

The dental lamina thickens first at the anterior midline.

MATCHING An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation. -Dental papilla

The permanent molars develop from successional lamina.

MATCHING An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation. -Dental sac

MATCHING An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation. -Enamel organ

MATCHING An understanding of the formation of the dental lamina and enamel organ provides dental professionals with a foundation in embryology.Match each descriptive term with its appropriate anatomic formation. -Dental lamina