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Periodontology 1 > Final; Dental Implants in Health > Flashcards

Final; Dental Implants in Health Flashcards

1
Q

This is the direct attachment or connection of vital osseous tissue to the surface of an implant, without intervening connective tissue; physical binding

A

osseointegration

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2
Q

This is the clinical term to define osseointegration

A

rigid fixation

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3
Q

True or False

Implants can be 100% integrated into bone

A

False, 100% bone connection does not exist, approx. 60% bone to implant contact

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4
Q

What are the steps in placing an implant

A
  • incision
  • mucoperiosteal flap elevation
  • preparation of a bed of the cortical and spongy bone (osteotomy)
  • insertion of the titanium device
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5
Q

There is this type of displacement of bone tissues at the tight contact at the cortical bone level regarding initial implant stability

A

lateral

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6
Q

What is the ultimate goal of the implant regarding the bone

A

for it to become anchylotic with the bone; establish a mucosal attachment
- You can always add bone onto the rest of the implant if you need to if it is stable in 3 walls

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7
Q

What is the process of bone healing at 24 hours

A
  • resorption of cortical bone
  • woven bone formation
  • blood clot formation
  • proliferation of vascular structures into newly forming granulation tissues
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8
Q

What is the process of bone healing at 1 week

A
  • reparative macrophage and undifferentiated mesenchymal cells
  • modeling at the apical trabecular region and at the furcation sites of a screw shaped implant
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9
Q

What is the process of bone healing at 2 weeks

A

new bone formation can be detected at the “furcation sites” of a screw shaped implant

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10
Q

What is the process of bone healing at up to 6 weeks

A

callus formation and lamellar compaction within woven bone

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11
Q

True or False

During bone healing, there is a temporary decrease in implant stability

A

True

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12
Q

This is the distance that can be filled with new bone between the implant and the remaining host bone

A

“jumping distance”

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13
Q

What is the ideal tolerable bone “jumping distance”

A

20-40μm

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14
Q

When is a good time for dental implant loading

A

accepted healing period for osseointegration is 6 months for maxilla and 3 months for mandible

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15
Q

What are the 4 types of implant loading

A
  • immediate loading (same day)
  • early loading (weeks)
  • late loading (months)
  • progressive bone loading (something new every week)
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16
Q

What is good/poor bone quality

A
  • you want a MIX of cortical and trabecular, cortical gives you the stability, while trabecular gives you the blood supply
  • Too much cortical = not enough blood
  • Too much trabecular = not enough stability
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17
Q

This increases surface area, and bone response is stronger to surfaces with irregularity values

A

porosity

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18
Q

An implant should be surrounded with a minimum of how much alveolar bone thickness

A

1mm

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19
Q

What are the minimum ridges of bone thickness between implant/implant and implant/tooth

A

implant/implant - 3mm

implant/tooth - 4mm

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20
Q

The coronal part of an implant should be places approx. how many mm apical to the adjacent CEF

A

5mm

21
Q

Obtaining this between implants and teeth is critical

A

maximum parallelism

22
Q

Implants do not have this, which means they cannot tolerate horizontal forces

A

PDL

23
Q

An implant can be places at a maximum of this angle

A

20 degrees

24
Q

What are the two parts of transmucosal attachment

A
  • barrier epithelium (2mm)

- zone of connective tissue (1-1.5mm)

25
Q

The collagen fiber bundles are in which direction corresponding to the implant surface

A

parallel

26
Q

The zone that is adjacent to the implant surface is rich from what and poor from what?

A

rich from fibroblast, but poor from blood vessels

27
Q

The zone that is in lateral direction and continuous with the first zone has fewer fibroblasts but is rich in what

A

collagen fibers and blood vessels

28
Q

The blood supply is coming from which blood vessels

A

supraperiosteal

29
Q

What is the difference between one and two stage implant placement

A

two stage = submerged tech.

one stage = non-submerged tech.

30
Q

This is the same that exists between implant and abutment

A

microgap; generally located at the alveolar crest

31
Q

Where does the biologic width on an implant exist

A

around unloaded and loaded non submerged one part titanium implants; approximately 3mm

32
Q

What are the 6 parameters used to evaluate peri-implant health

A

1; absence of mobility
2; radiographic examination
3; absence of bone loss ≥2mm/year following the first year
4; absence of any pain, complaint, or infection
5; functional and esthetic acceptance of implant
6; success rate of 94-98% following 5 years and 90-94% following 10 years

33
Q

What are the three techniques to evaluate dental implants

A

peri-implant probing
existence of mobility
radiographic examination

34
Q

This of an object is strongly correlated to the boundary constrains of the structure

A

resonance frequency analysis (RFA)

the higher the # the better stability

35
Q

is keratinized tissue or attached gingiva required around dental implants

A

yes, especially in partially edentulous

36
Q

What is the success rate for implants placed at grafted sites

A

about the same - stability

37
Q

With an implant there is no _____ ______ attachment

A

Soft tissue

38
Q

With implants what seals the implant post to the bone?

A

Mucosal seal

39
Q

What is stronger a soft tissue attachment or mucosal seal?

A

soft tissue attachment (found in natural teeth)

40
Q

How much mobility is acceptable with an implant?

A

ZERO

41
Q

What is rigid fixation?

A

Osseointegration

42
Q

Why does 100% bone connection not exist?

A

There are small non-binding pocket areas along the surface of the implant

43
Q

New implants differ from older implants how? Some older styles are still used today.

A

Older implants - smooth

Newer implants - roughened surfaces - screw design

44
Q

Why would we pick a roughened implant design over a smooth?

A

For additional surface area binding

45
Q

When would you expect to see the temporary decrease in stability of the implant improve?

A

After 6 week plateau

46
Q

When is a good time for dental implant loading? Maxilla and Mandible?

A 
Maxilla = 6 months (thinner cortical bone)
Mandible = 3 months (thicker cortical bone)
47
Q

What is the worst type of bone quality for implants? What is best?

A

Type IV bone, then Type I

Best is between Types II and III

48
Q

What type of implant is most used today in the US?

A

Titanium (covered with titanium dioxide)

Periodontology 1 (29 decks)

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