Quiz 1

Question 1

Name the 3 primary germ layers found within the gingiva early in the embryo

Answer 1

Ectoderm - most exterior layer of the 3 primary germ layers

Mesoderm – Middle layer

Endoderm – Innermost layer

Question 2

List the 3 types of epithelium within the gingival tissues

Answer 2

Non-keratinised stratified squamous epithelium

Orthokerantinised stratified squamous epithelium

Parakeratinised stratified squamous epithelium

Question 3

Name the cells within the gingival epithelium?

Answer 3

Basal cells

Prickle cells

Granular cells

Keratinised cells

Question 4

Describe proliferation

Answer 4

Rapid reproduction of a cell or a part of an organism

Question 5

Define the Dermal Papilla?

Answer 5

Superficial projections of dermis that interlock with overlaying dermis

Question 6

Define Rete Ridges

Answer 6

Extensions of epidermis into the dermis layer

Question 7

What are hemidesmosomes and desmosomes

Answer 7

Desmosomes – specialised adhesive protein complexes that localise to intercellular junctions and are responsible for maintaining the mechanical integrity of tissue

Hemidesmosomes – small stud like structures found in the keratinocytes.

Question 8

Name the 5 gingival fibres

Answer 8

Dentogingival

Dentoperiosteal

Alveologingival

Circular

Transeptal

Question 9

What is the role of each of the gingival fibres

Answer 9

Dentogingival – attach gingiva to the tooth

Dentoperiosteal - attach gingiva to the tooth

Alveologingival - attach gingiva to the tooth

Circular – help maintain the position of the tooth

Transeptal – connect adjacent teeth to one another and secure the alignment of the tooth arch.

Question 10

What is periodontology

Answer 10

The study of periodontal tissues which support the teeth and maintain their position in the jaw.

Question 11

Describe the difference between gingivitis and periodontal disease?

Answer 11

Perio – irreversible, destruction, bone loss, LOA, recession, mobility, loss of teeth

Gingivitis – Inflammation of the gingiva, no destruction, reversable

Question 12

What are biofilms

Answer 12

Organised communities of organisms that allow bacteria and other micro-organisms to coexist which should normally be incompatible

Question 13

There are 7 components in which bacteria can cause disease, what are they?

Answer 13

Acquisition

Adherence or retention

Initial survival

Prosperity and longer-term survival

Avoidance of elimination

Multiplication

Elaboration of ‘virulence factors’

Question 14

Explain what virulence means

Answer 14

power to produce disease