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perio > applied anatomy > Flashcards

applied anatomy Flashcards

1
Q

what is the keratinized gingiva

A

The attached gingiva+ the marginal gingiva

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2
Q

what kinda of gingiva is found beyond the mucogingival jucntion

A

Unkeratinized gingiva

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3
Q

how to find the width of attached gingiva

A

measure from gingival margin to mucogingival junction

subtract probe deapth from this

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4
Q

what is used to diagnosis of periodontisis

A

based on attachment loss, NOT probe depths

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5
Q

how to calculate attachment loss

A

Pocket depth+ gingival recession

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6
Q

how does Soft tissue attach to the tooth

A

via fibrous tissue and via junctional epithelium

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7
Q

what is the connective tissue attachment

A

1.06-1.08mm

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8
Q

what is the epithelial attachment

A

1.4mm

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9
Q

what should the distance from CEJ to alveolar crest be

A

2mm

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10
Q

what should you do if the distance from crown margin to alveolar crest is less than 2mm

A

Crown lengthening

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11
Q

what was the initial thinking to create recession

A

width of keratiniezed tissue less than 2mm

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12
Q

problem with narrow gingiva

A

Cannot protect from friction
cannot buffer against muscle pull
facilitates subgingival plaque formation

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13
Q

what does narrow gingiva facilitate subgingival plaque formation

A

Mobile tissue causes pocket to open
Facilitates food impaction
Impedes oral hygiene

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14
Q

why does the gingiva move down

A

Via bone resorption witch in turn pulls down the connective tissue that supports the gingiva

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15
Q

what is recession described as when the gingival margin is coronal to CEJ

A

NEgative recession

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16
Q

what happens if you violate the biologic width

A

leads to lots of inflammation

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17
Q

what is modern ideal concerning gingival health in association with its dimensio

A

Gingival health can be maintained indepedent of its dimensions

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18
Q

what has more resistance to attachment loss, narrow or wide gingiva

A

Both equal

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19
Q

what receeds more thick or thin gingiva

A

Thin more

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20
Q

what is more vulnerable to trauma, thick or thin gingiva

A

Thin more

21
Q

what is more vulnerable to inflammation, thick or thin gingiva

A

Thin

22
Q

what has less favorable tratment outcomes, thick or thin gingiva

A

Thin

23
Q

why would you receommend gingival grafts

A

When recession causes symptoms
Subgingival restoration margins on thin biotype
Pre-ortho therapy

24
Q

gingival grafts for when recession causes symptoms

A

Caries
Esthetic Concerns
Progressive recession
Sensitivity

25
Q

what determines the characterisitics of the gingiva

A

Geneticall determined rather than being the result of functional adaptation to environmental stimul

26
Q

what interaction is important for gingiva growth

A

Epithelial mesenchymal interactions

27
Q

how did we think gigniva became keratinized early on

A

In response to friction

28
Q

How do we now think gingiva becomes keratinized

A

Connective tissue determines epithelial characteristics

29
Q

why did we originally do coronally advanced flaps

A

Keratinized epithelium converted to firm attached gingiva and eptihlium directs new eptihlium

30
Q

now what do we do to graft gingiva

A

Connective tissue grafts

31
Q

early gingival grafts

A

free gingival grafts

Coronaly advanced flaps

32
Q

what happens if you develop antibodies to the basement membrane

A

basememnt membrane goes away

you blister since epithlium goes away

33
Q

what do the cells of the alveolar bone come from

A

Cells from the dental follicle

Cells independent of tooth development

34
Q

what makes up the alveolar bone

A

CAncellous bone
Cortical bone
Marrow

35
Q

what is found in the bone marrow of alveolar bone

A

Adipocytes
Vascular structures
Undifferentiated mesenchymal cels

36
Q

why does the alveolar bone remodel

A

In response to forces and tooth movement

37
Q

what forms the cortical plate of the alveolar bone

A

The cortical bone

38
Q

how does healing occur after extraction

A 
Cloting
Wound cleaning
New vasculature
Provision connective tissue
Immature bone
Bundle bone (Socket proper is resorbed
Woven bone
maturation of bone
39
Q

what does wound cleaning after an extraction

A

PMNs, monocytes, macrophages

40
Q

what forms the granulation tissue after an extraction

A

Mesenchymal cells from the PDL

41
Q

why preseve a socket

A

for bone morphology in the case of an implant

42
Q

what normally happens in the healing of bone

A

Pulls socket togeher

43
Q

how to preseve asocket

A

Fill with bone granules

44
Q

where are fibroblasts of the PDL

A

along principle fibers

45
Q

where are osteoblasts of the pdl

A

Line bone surface

46
Q

where are cementoblasts of the PDL

A

Line cemntal surface

47
Q

what is the principle of guided tissue regnetation

A

epithlium grows faster than bone or connective tissue

48
Q

what does epithelial exclusion allow

A

Selective growth of connective tissue cells

49
Q

how to do guided tissue regeneration

A

Fill with bone chips
keep chips in with barrier membrane
epithlium flows over membrane and bone replaces the bone chips

perio (8 decks)

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