Modern Dental Assisting Ch. 8
Questions And Answers
What are the 3 periods of prenatal development? - ANSPreimplantation, embryonic, and fetal
Which period of prenatal development is most crucial, and why? - ANSEmbryonic. All major
structures in the body begin development.
What are the 3 primary embryonic layers? - ANSEctoderm, mesoderm, and endoderm
Which branchial arch forms the bones, muscles, facial nerves, and lower lip? - ANSMandibular
arch (1st branchial arch)
Which branchial arch forms the side and front of the neck? - ANSHyoid arch (2nd branchial
arch)
What are the 3 stages of palate formation? - ANSFormation of the primary palate, then
secondary palate, then they fuse together to create one palate.
When does the development of the human face occur? - ANS5th and 8th weeks
How old is the embryo when the 1st signs of tooth development is found? - ANS5-6 weeks old
What is the process of adding bone? - ANSDeposition
What is the process of bone loss/removal? - ANSResorption
What are the 3 primary periods in tooth formation? - ANSGrowth, calcification, and eruption
What are the 3 stages of the growth period? - ANSBud, cap and bell
When a tooth has several cusps, what structures are formed when the cusps join together? -
ANSPits and fissures
What is the name of the process by which teeth move into the oral cavity? - ANSEruption
What is the difference between the anatomic crown and the clinical crown? - ANSThe anatomic
crown is the portion of the tooth that is covered with enamel. The clinical crown is the portion of
the tooth that is visible in the oral cavity.
Questions And Answers
What are the 3 periods of prenatal development? - ANSPreimplantation, embryonic, and fetal
Which period of prenatal development is most crucial, and why? - ANSEmbryonic. All major
structures in the body begin development.
What are the 3 primary embryonic layers? - ANSEctoderm, mesoderm, and endoderm
Which branchial arch forms the bones, muscles, facial nerves, and lower lip? - ANSMandibular
arch (1st branchial arch)
Which branchial arch forms the side and front of the neck? - ANSHyoid arch (2nd branchial
arch)
What are the 3 stages of palate formation? - ANSFormation of the primary palate, then
secondary palate, then they fuse together to create one palate.
When does the development of the human face occur? - ANS5th and 8th weeks
How old is the embryo when the 1st signs of tooth development is found? - ANS5-6 weeks old
What is the process of adding bone? - ANSDeposition
What is the process of bone loss/removal? - ANSResorption
What are the 3 primary periods in tooth formation? - ANSGrowth, calcification, and eruption
What are the 3 stages of the growth period? - ANSBud, cap and bell
When a tooth has several cusps, what structures are formed when the cusps join together? -
ANSPits and fissures
What is the name of the process by which teeth move into the oral cavity? - ANSEruption
What is the difference between the anatomic crown and the clinical crown? - ANSThe anatomic
crown is the portion of the tooth that is covered with enamel. The clinical crown is the portion of
the tooth that is visible in the oral cavity.
