intro Flashcards

1
Q
  • Approximately —-% of adults aged 20 to 64 have no teeth and almost ___% of seniors (above the age of 65) have no remaining teeth.
A
  • Approximately 5% of adults aged 20 to 64 have no teeth and almost 30% of seniors (above the age of 65) have no remaining teeth.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The leading causes for teeth loss are:

A

The leading causes for teeth loss are caries and periodontal disease.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  • Approximately ____% of US adults aged 20-64 had dental caries in 2011-2012, ____% of
    which suffered from untreated dental caries.
A
  • Approximately 91% of US adults aged 20-64 had dental caries in 2011-2012, 26% of
    which suffered from untreated dental caries.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  • Periodontal disease affects —-% of the population between 35-44 years of age and —–% of people over 65 years of age.
A
  • Periodontal disease affects 75% of the population between 35-44
    years of age and 95% of people over 65 years of age.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  • ____ million Americans are missing at least one tooth, and more than ____ million are currently edentulous, _____ of which in both arches (ACP).
A
  • 120 million Americans are missing at least one tooth, and more than 36
    million are currently edentulous, 2/3 of which in both arches (ACP).
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

success % of implants

A

95

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

CD % function restored

A

30

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

RPD %function restored

A

60

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Fixed Dental Prostheses (Crowns
and Bridges) % function restored

A

100% of lost function restored
* Can be tooth or implant supported

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Dental Implant

A

“A prosthetic device or alloplastic material implanted into the oral tissues beneath the mucosal and/or periosteal layer, and/or within the bone to provide retention and support for a fixed or removable dental prosthesis.”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Implant Categories

A
  • Eposteal: on/around the bone
  • Transosteal: through the bone
  • Endosteal: in the bone
  • ■EPOSTEAL - Subperiosteal
    ■TRANSOSTEAL-Transmandibular
    ■ENDOSTEAL - Blade and Root Form
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

subperiosteal implants

metal? supported by? cost? survival? indication? bone?

A

■Vitallium metal
■Denture is implant supported /expensive
■Survival rate 85% Ten years (Harvard Consensus)
■Indicated for atrophic edentulous mandible.
■Bone resorption leads to mobility infection and loss

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

transosteal implants
metal?
success?
indicated?
supported by?
requires?

A

■Titanium metal
■91% Success rate at fifteen years (excellent)
■Only indicated for the edentulous mandible
■Denture is tissue supported
Requires one surgery usually in the hospital.
External incision / approach.
Excellent for the atrophic mandible where root form implants would weaken the jaw.
Complex surgical procedure therefore not widely used.
Restricted to the anterior mandible. (post=IA nn)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

transmandibular implants
■% success rate
■used for?
■indication?
■metal?
■Reversible?

A

■97% success rate
■used for Implant supported denture
■Used in severe atrophic mandibles <10mm
■Gold Alloy, not titanium
■Reversible – can be removed due to design of screws and degree of integration, but not easy process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

endosteal implant types

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

blade implants
metal?
best for?
% survival?
when ceased?

A

■Titanium metal
■One stage/best for partially edentulous mandibles
■75% five year survival
■Most widely used until 1980

17
Q

blade implants failures/drawbacks

A

■Early failures due to heat at preparation and immediate loading
■Drawbacks: Difficult to prepare a precision slot and if it fails, a large section of bone is involved

18
Q
A

blade implant

19
Q

root form implants
success?
indicated?
uses?

A

■Success rate greater than 90%
■Indicated for partially and fully edentulous cases/any area of the mouth (versatility)
■Multiple uses: overdenture, hybrid, crown and
bridge, ortho anchorage…

20
Q

root form implants
■ metal(s)?
■ stage approach?
■In office?
■types?
■implant surface types?

A

■Titanium or an alloy of titanium-aluminum-vanadium metal(s)
■1 or 2 stage approach
■In office procedure
■Screws/Cylinders
■Machined or rough (to increase surface area for integration)

21
Q

super implants

A

zygomatic and pterygoid
no need for bone grafting

22
Q

osseointegration

A

Brånemark introduced the term osseointegration and defined it
as “a direct structural and functional connection between
ordered, living bone and the surface of a load-carrying implant.”

23
Q

why use Ti?

A

■Not recognized as a foreign object by the body
■Less host rejection than other metals/alloys
■Medicine also recognized utilization in joint replacements
and heart valves

24
Q

impants vs teeth

A
  • Important distinction from
    natural dentition
  • Implants are not teeth and
    there is extensive evidence
    that they behave differently
25
Q

implants and dx

A

Not susceptible to the same disease processes that
affect our dentate patients.

Teeth:
*Caries
*Periodontal disease

Implants:
*Peri-implantitis (bone)
*Peri-mucositis (soft-tissue)

26
Q

possible implant designs

A

mainly use two piece due to tx felibility

27
Q

tissue vs bone level implants

most today are?

A

tissue level: screw portion in bone and small collar above bone
bone level: only present in bone, none present in soft tissue
most today are bone level, more flexibility

28
Q

implant platforms

A

internal vs external hexes
location male and female parts differ

29
Q

single implant survival rate

A

94-98

30
Q

failure % relative to placement of restoration (before vs after placement)

A

~55-60% of failures occur prior to the placement of the restoration
~40-45% occur after the restoration placement

31
Q

failure % after placement

time frames

A
  • 57% of the failures occurred in 1st year
  • 34% of the failures occurred in the 2nd year
  • 9% of the failures occurred in the 3rd year
  • 0% after?
32
Q

bone loss with implants

A
  • Average of 1mm during 1st year
  • Average of 0.1 mm each year after
33
Q

soft tissues with implants

mostly occurs when?

A

1mm of soft-tissue recession can generally be expected during the first year.

Most of this occurs within the first three months following abutment connection surgery.