ADDITIONAL NOTES

Question 1

Oral tissues - are specialized structures involved in ______, ______, ______, and ______.

Answer 1

mastication, protection, sensation, digestion

Question 2

Oral tissues

They are broadly classified into:
— ______, ______, ______, and ______.

Answer 2

epithelial, connective, mineralized, specialized structures

Question 3

The ______ lines the oral cavity and is categorized into three types.

Answer 3

oral mucosa

Question 4

The oral mucosa lines the oral cavity and is categorized into three types:

Answer 4

Lining Mucosa (Non-keratinized)
Masticatory Mucosa (Keratinized)
Specialized Mucosa

Question 5

The oral mucosa lines the oral cavity and is categorized into three types:

______ - Covers lips, cheeks, soft palate, ventral tongue, and floor of the mouth.

Answer 5

Lining Mucosa (Non-keratinized)

Question 6

The oral mucosa lines the oral cavity and is categorized into three types:

______ - Found on the hard palate and attached gingiva.

Answer 6

Masticatory Mucosa (Keratinized)

Question 7

The oral mucosa lines the oral cavity and is categorized into three types:

______ - Located on the dorsal tongue and contains taste buds within papillae.

Answer 7

Specialized Mucosa

Question 8

Supporting Structures of Teeth (Periodontium):

Answer 8

Gingiva
Periodontal Ligament (PDL)
Cementum
Alveolar Bone

Question 9

Supporting Structures of Teeth (Periodontium):

______ – Protective mucosa surrounding the teeth

Answer 9

Gingiva

Question 10

Supporting Structures of Teeth (Periodontium):

______ – Connects cementum to alveolar bone

Answer 10

Periodontal Ligament (PDL)

Question 11

Supporting Structures of Teeth (Periodontium):

______ – Covers root dentin, attaches PDL fibers

Answer 11

Cementum

Question 12

Supporting Structures of Teeth (Periodontium):

______ – Supports and anchors teeth

Answer 12

Alveolar Bone

Question 13

Embryonic and Histologic Development of the Face and Oral Cavity

• Face and oral cavity development occurs between ______ and ______ weeks of intrauterine life.

Answer 13

4th, 8th

Question 14

Embryonic and Histologic Development of the Face and Oral Cavity

• Formed from:
  ______,
  ______,
  and ______

Answer 14

pharyngeal arches
frontonasal process
maxillary/mandibular processes

Question 15

Pharyngeal Arch: 1st (Mandibular)
Derivative:

Answer 15

Maxilla, mandible, muscles of mastication, Meckel’s cartilage

Question 16

Pharyngeal Arch: 2nd (Hyoid)
Derivative:

Answer 16

Hyoid bone, muscles of facial expression

Question 17

Pharyngeal Arch: 3rd
Derivative:

Answer 17

Stylopharyngeus muscle, part of the hyoid bone

Question 18

Pharyngeal Arch: 4th & 6th
Derivative:

Answer 18

Laryngeal cartilages, pharyngeal and laryngeal muscles

Question 19

Embryonic and Histologic Development and Growth of Teeth

Tooth development begins at ______ and progresses through six stages.

Answer 19

6th week IU

Question 20

Stages of Tooth Development:

Answer 20

Initiation Stage (6-7 weeks IU)
Bud Stage (8th week IU)
Cap Stage (9-10 weeks IU)
Bell Stage (11-12 weeks IU)
Apposition Stage (14 weeks onward)
Maturation Stage

Question 21

Stages of Tooth Development:

______
– Formation of the dental lamina, which gives rise to tooth buds.

Answer 21

Initiation Stage (6-7 weeks IU)

Question 22

Stages of Tooth Development:

______
– Growth of epithelial cells into the underlying mesenchyme.

Answer 22

Bud Stage (8th week IU)

Question 23

Stages of Tooth Development:

______
– Formation of the enamel organ, dental papilla, and dental sac.

Answer 23

Cap Stage (9-10 weeks IU)

Question 24

Stages of Tooth Development:

______
– Morphodifferentiation and histodifferentiation occur, determining the final shape of the tooth.

Answer 24

Bell Stage (11-12 weeks IU)

Question 25

Stages of Tooth Development: ______ – Enamel and dentin are laid down in layers.

Answer 25

Apposition Stage (14 weeks onward)

Question 26

Stages of Tooth Development: ______ – Hard tissues undergo mineralization, finalizing tooth formation.

Answer 26

Maturation Stage

Question 27

Key Timelines in Tooth Development Stage: Time (IU) “in utero”: 6th week

Answer 27

Dental lamina formation

Question 28

Key Timelines in Tooth Development Stage: Time (IU) “in utero”: 8th week

Answer 28

Bud stage

Question 29

Key Timelines in Tooth Development Stage: Time (IU) “in utero”: 9-10 weeks

Answer 29

Cap stage

Question 30

Key Timelines in Tooth Development Stage: Time (IU) “in utero”: 11-12 weeks

Answer 30

Bell stage

Question 31

Key Timelines in Tooth Development Stage: Time (IU) “in utero”: 14th week onward

Answer 31

Enamel & dentin formation

Question 32

Key Timelines in Tooth Development Stage: Time (IU) “in utero”: Late fetal period to postnatal

Answer 32

Root development