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Dental Sciences > Periodontum > Flashcards

Periodontum Flashcards

1
Q

What does the periodontium consist of

A

The periodontal ligament
Alveolar bone
Gingiva (junctionsk epithelia)

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2
Q

What else is sometimes considered as periodontium

A

Cementum

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3
Q

What is the periodontal ligament

A

Dense fibrous connective tissue

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4
Q

Where is the PDL found

A

Space between tooth and alveolar bone

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5
Q

What does the PDL contain

A 
Cells 
Fibres ( collagen) 
Water 
Nerves
Ground substance
Blood vessels
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6
Q

What are the functions of the PDL

A 
Attachment of tooth to the bone
Support 
Suspensory 
Shock absorber
Sensory - heavily innervated
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7
Q

What are the two parts of bone associated

A

Alveolar bone and basal bone

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8
Q

What is the alveolus

A

Sac or little cavity

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9
Q

When’s. Tooth is extracted what happens to the alveolar bone

A

It’s resorbs

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10
Q

Where about is cortical a nd trabecular bone found around the tooth

A

Cortical the outskirts of the bone

Trabecular under the tooth ehich is spongey cancellous bone

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11
Q

What is the lamina dura

A

Bundle bone

Crubiform late at the cortical bone and PDL

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12
Q

What is gingiva

A

A type of oral mucosa

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13
Q

What is the function of oral mucosa

A

Protection - mechanical, chemical, bacterial, prevent dehydration
Sensation as heavily innervated
Secretion

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14
Q

What does oral mucosa consist of

A 
Epithelium 
Connective tissue (lamina propria)
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15
Q

What are the 3 types of mucosa

A

Masticatory
Lining
Specialised - sensation of taste

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16
Q

Where is masticatory mucosa found

A

Roof of mouth

In front and Behind teeth

17
Q

Where is lining mucosa found

A

Inside lips
Cheeks
Under tongue

18
Q

Where is specialised mucosa found

A

In the tongue

19
Q

What is gingival mucosa

A 
Masticatory mucosa 
The pick keratinised epithelia 
Pink 
Firm 
Stippled
20
Q

What is alveolar mucosa

A 
Lining mucosa 
Thin non-keratinised epithelia 
Red
Loose
Smooth
21
Q

What he the margin called between the mucosal and alveolar mucosa

A

Mucogingival junction

22
Q

What is the distinct curvature of mucosa found around the teeth

A

Free gingival groove

23
Q

Why does a local anaesthetic given in lining mucosa is pain free but hurts in masticatory mucosa

A

Lining mucosa - is flexible

Masticatory. - is firm and pressure increased can hurt

24
Q

Explain some features of the dento-gingival junction

A

Gingival sulcus
Junctionsk epithelia
Fre gingiva

25
Q

What is periodontium

A

The tooth support tissues

Dental Sciences (5 decks)

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