Introduction to Implant Dentistry 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

5%; 30%

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2
Q

The leading for cause for teeth loss:

A

Periodontal disease & caries

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3
Q

Approximately ____% of US adults aged 20-64 had dental caries in 2011-2012

____% of which suffered from untreated dental caries

A

91%; 26%

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4
Q

Periodontal disease affects ____% of the population between 35-44 years of age and ___% of people over 65 years of age

A

75%; 95%

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5
Q

120 million Americans are missing atleast ______ and more than 36 million are currently _____, 2/3 of which in both ____ (ACP)

A

One tooth; edentulous; arches

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6
Q

The success rate of dental implants has been reported to be around:

A

98%

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7
Q

In 2006 _____ implants were placed by U.S. Dentists

In 2006 _____ implants were placed by U.S. General dentists

A

5.5 million

3.1 million

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8
Q

The dental implant and final abutment market in the U.S. is currently valued at ______ and is forecast to reach _____ by 2025 and is largely driven by general practitioner procedure growth

A

1.1 billion; 1.5 billion

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9
Q

List the current methods of replacing missing teeth:

A
  1. implants
  2. complete denture
  3. removable partial denture
  4. fixed dental prosthesis
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10
Q

With a complete denture, _____% of lost function is restored

A

30%

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11
Q

With a removable partial denture, ____% of lost function is restored

A

60%

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12
Q

With fixed dental prosthesis (crowns & bridges), _____% of loss of function is restored.

A

100%

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13
Q

Fixed dental prosthesis (crowns & bridges) can be _____ or ____ supported

A

tooth; implant

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14
Q

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:

A

Dental implant

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15
Q

Implants were used as early as:

A

600AD mayan origin

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16
Q

Modern implant dentistry occurred:

A

early 19th century

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17
Q

List the three implant categories:

A
  1. eposteal
  2. transosteal
  3. endosteal
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18
Q

Implant category, on/around the bone:

A

eposteal

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19
Q

Implant category, through the bone:

A

transosteal

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20
Q

Implant category, in the bone:

A

endosteal

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21
Q

An eposteal implan is known as:

A

subperiosteal

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22
Q

A transosteal implants is known as:

A

transmandibular

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23
Q

A endosteal implant is known as:

A

blade & root form

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24
Q

Modern implant dentistry began in the early 19th century and implants were made of various materials, the most current being:

A

titanium

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25
Q

Implants that started in the early 1940s and were made of vitallium metal:

A

subperiosteral implants

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26
Q

The denture fabricated for the superiosteal implant were: (2)

A
  1. implant supported
  2. expensive
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27
Q

Describe the survival rate of subperiosteal implants:

A

Good survival rate (85% ten years)

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28
Q

When are subperiosteal implants indicated?

A

Indicated for atrophic edentulous mandible

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29
Q

What was an issue with subperiosteal implants?

A

Bone resorption over time leads to mobility, infection & loss

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30
Q

What type of implant is seen in the following images?

A

Subperiostal implants

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31
Q

Implants introduced in 1968 and made of titanium:

A

Transosteal implants

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32
Q

Describe the survival rate of transosteal implants:

A

Good success rate (91% at 15 years)

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33
Q

When are transosteal implants indicated?

A

Only indicated for the edentulous mandible

34
Q

The denture for transosteal implants is:

A

tissue supported

35
Q

Why are transosteal implants not widely used?

A

Requires invasive surgery usually in hospital setting (external incision/approach)

36
Q

A transosteal implant is excellent for ____ where root form implants would weaken the jaw

A

atrophic mandible

37
Q

Transosteal implants are restricted to:

A

the anterior mandible

38
Q

What type of implant is seen in the following image?

A

transosteal implant

39
Q

TMI:

A

Transmandibular implant

40
Q

Transmandibular implants are restored with:

A

implant supported denture

41
Q

When are transmandibular implants indicated?

A

Used for severe atrophic mandibles (less than 10mm)

42
Q

What material is used for dtransmandibular implants?

A

Gold alloy (NOT titanium)

43
Q

Transmandibular implants require a complex process, however they are _____ due to the design of the screws and degree of integration

A

reversible

44
Q

What type of implant is seen in the following images?

A

transmandibular implants

45
Q

Type of implant that eliminates the need for significant bone grading, ridge augmentation or vestibuloplasty and allows facial muscles to be reattached to improve facial profile:

A

transmandibular implants

46
Q

The following image shows examples of:

A

endosteal implants

47
Q

The following image shows what type of implant?

A

transmandibular implants

48
Q

List three examples of endosteal implant types:

A
  1. blade
  2. cylinder
  3. screw
49
Q

_____ implants are made of titanium and were introduced in 1969 for the possibility of restoring partially edentulous mandibles

A

blade implant

50
Q

Describe the survival rate of blade implants:

A

good not great

51
Q

Type of implant used mostly in the 80s:

A

blade implant

52
Q

Describe the failures of blade implants:

A

largely due to the heat production during the implant site preparation and immediate loading

53
Q

The following image shows what type of implants?

A

Blade implants

54
Q

The following image shows what type of implants?

A

Blade implants

55
Q

The following image shows what type of implants?

A

Blade implants

56
Q

Considered the modern day implant:

A

root form implants

57
Q

Describe the success rate of root form implants:

A

greater than 90% with the most recent ones being 98%

58
Q

What materials comprise root form implants?

A

titanium or an alloy of titanium-aluminum-vanadium metal(s)

59
Q

Root form implants are indicated for:

A

partially and completely edentulous patients both in the maxillary & mandibular arches

60
Q

Became the standard with research of Branemark in 1970 based on the concept of osseointegration:

A

Root form implants

61
Q

Describe the surface of a root form implant:

A

May be machined or roughed

62
Q

The following image shows what type of implant?

A

Root form

63
Q

Used in cases in which the posterior maxillary bone is severely atrophic:

(indicated when there is no maxillary posterior bone)

A

Zygomatic & Pterygoid superimplants

64
Q

What term was introduced by Branemark?

A

Osseointegration

65
Q

A direct structural and functional connection between ordered, living bone and the surface of a load-carrying unit:

A

Osseointegration

66
Q

What material is not recognized by bone/body as a foreign object?

A

titanium

67
Q

Because titanium is not recognized as a foreign object by the body there is less:

A

host rejection

68
Q

Because titanium is not recognized as a foreign object by the body there is less likely to reject, this allows for:

A

integration into the surrounding hard tissue

69
Q

Teeth are susceptible to caries and periodontal disease, while implants are susceptible to:

A
  1. peri-implantitis (bone)
  2. peri-mucositis (soft tissue)
70
Q

Peri-implantitis affects the:

A

bone

71
Q

Peri-mucositis affects the:

A

soft tissue

72
Q

What determines whether an implant design is considered one-piece or two-piece:

A

depends on if the prosthesis abutment is part of the implant or a separate piece

73
Q

What determines whether the implant is tissue level or bone level?

A

depends on if the implant is fully embedded into the surrounding bone or presents in the transmucosal portion

74
Q

What distinguishes whether an implant is external hex or internal hex?

A

Distinguished by whether the implant area connecting the implant to the prosthetic components protrudes from the implants or is internal to it

75
Q

What is the predictability of a single implant fixture survival rate:

A

94-98%

76
Q

55-60% of implant failures occur:

A

prior to the placement of the restoration

77
Q

40-45% of implant failures occur:

A

after the restoration placement

78
Q

____% of failures occur in the 1st year

____% of failures occur in the 2nd year

____% of failure occurred in the 3rd year

A

57%

34%

9%

79
Q

Overtime some bone loss surrounding the implant is not considered pathological.

Average of _____mm during the 1st year and an average of ____ each year after

A

1mm
0.1mm

80
Q

____ of soft tissue recession can generally be expected during the first year. Most of this occurs within the first _____ following abutment connection surgery.

A

1mm; 3 months

81
Q
A