applied anatomy Flashcards

(49 cards)

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

21
Q

what is more vulnerable to inflammation, thick or thin gingiva

22
Q

what has less favorable tratment outcomes, thick or thin gingiva

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
what determines the characterisitics of the gingiva
Geneticall determined rather than being the result of functional adaptation to environmental stimul
26
what interaction is important for gingiva growth
Epithelial mesenchymal interactions
27
how did we think gigniva became keratinized early on
In response to friction
28
How do we now think gingiva becomes keratinized
Connective tissue determines epithelial characteristics
29
why did we originally do coronally advanced flaps
Keratinized epithelium converted to firm attached gingiva and eptihlium directs new eptihlium
30
now what do we do to graft gingiva
Connective tissue grafts
31
early gingival grafts
free gingival grafts | Coronaly advanced flaps
32
what happens if you develop antibodies to the basement membrane
basememnt membrane goes away | you blister since epithlium goes away
33
what do the cells of the alveolar bone come from
Cells from the dental follicle | Cells independent of tooth development
34
what makes up the alveolar bone
CAncellous bone Cortical bone Marrow
35
what is found in the bone marrow of alveolar bone
Adipocytes Vascular structures Undifferentiated mesenchymal cels
36
why does the alveolar bone remodel
In response to forces and tooth movement
37
what forms the cortical plate of the alveolar bone
The cortical bone
38
how does healing occur after extraction
``` Cloting Wound cleaning New vasculature Provision connective tissue Immature bone Bundle bone (Socket proper is resorbed Woven bone maturation of bone ```
39
what does wound cleaning after an extraction
PMNs, monocytes, macrophages
40
what forms the granulation tissue after an extraction
Mesenchymal cells from the PDL
41
why preseve a socket
for bone morphology in the case of an implant
42
what normally happens in the healing of bone
Pulls socket togeher
43
how to preseve asocket
Fill with bone granules
44
where are fibroblasts of the PDL
along principle fibers
45
where are osteoblasts of the pdl
Line bone surface
46
where are cementoblasts of the PDL
Line cemntal surface
47
what is the principle of guided tissue regnetation
epithlium grows faster than bone or connective tissue
48
what does epithelial exclusion allow
Selective growth of connective tissue cells
49
how to do guided tissue regeneration
Fill with bone chips keep chips in with barrier membrane epithlium flows over membrane and bone replaces the bone chips