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Implant Dentistry > Intro to Implant Dentistry > Flashcards

Intro to Implant Dentistry Flashcards

1
Q

% US pop 18yo+ fully dentate;

A

30%

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2
Q

Functional dentition:

A

21+ natural teeth

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3
Q

% of US pop 21+ w functional dentition:

A

71.7%

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4
Q

% of US pop 50+ w functional dentition:

A

42.4%

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5
Q

State w lowest rate of edentulism:

A

hawaii (16%)

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6
Q

State with highest rate of edentulism:

A

Kentucky (44%)

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7
Q

Most commonly missing tooth type:

A

molars

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8
Q

In which arch is reer-end edentulism more common:

A

mandible

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9
Q

1 out of __ in US pop have removable prosth:

A

5

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10
Q

% of US pop missing at least 1 tooth:

A

70%

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11
Q

2 main issues with free-end edentulism:

A

lack of stability, poor masticatin

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12
Q

Edentulism is __ times more common in which arch?

A

35, maxilla

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13
Q

% of US pop edentulous in 1 arch:

A

7%

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14
Q

% of US pop totally edentulous:

A

10.5%

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15
Q

2 primary reasons for tooth loss:

A

caries, pdd

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16
Q

Benefits of implants;

A

bone preservation/ regeneration, functional benefits, comforting benefits, pt satisfaction and quality of ife, esthetics, preservation of the biological env

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17
Q

Why does bone need stimulation:

A

to maintain form and density

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18
Q

% initial bone loss w placement of implant:

A

25%

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19
Q

Implants can be splinted via:

A

ridges

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20
Q

How to preserve bone height and width most effectively:

A

immediate implant placement

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21
Q

TF? Implant fixed dentures can not preserve bone.

A

F. and regeneration for some

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22
Q

If pt has this disease you can’t do implant.

A

patient has severe, uncontrolled diabetes, bridge avg life is 10-15y max

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23
Q

Why is age such an important factor to consider when deciding whether to recommend RPD for a pt?

A

an RPD will wear on a tooth over time and will eventually need replacing, each time you prep more tooth structure

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24
Q

Could a person theoretically change Bone type in a region of the mouth by exerting more masticatory force in that area?

A

ask check

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25
Q

Better option for person w sever bone loss?

A

implants, a very large denture may break the jaw

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26
Q

Max biting force implant overdenture vs. implants:

A

75N to 132 N

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27
Q

IOD sf:

A

implant overdenture

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28
Q

TF? Implants improve digestion over complete dentures

A

T

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29
Q

Max biting force Implant Fixed Complete Denture vs. implants:

A

250N vs. 132N

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30
Q

Benefit of implant over prosth:

A

less pain, less instability, most pts think operation is comfortable

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31
Q

Esthetic benefit of implants over dentures:

A

teeth better positioning, enhanced facial esthetics, better color matching

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32
Q

Appearance due to loss of VD:

A

prognathic

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33
Q

Esthetics consequences of edentulism:

A

prognathic appearance, thinning of the lips (esp max), dec facial ht, dec horizontal labial angle, loss of tone in muscles o facial expression

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34
Q

This allows for us to create proper lip height and lip protrusion even if there is a lot of bone loss:

A

bar connecting the series of implants that is higher than the most coronal portion of the implant

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35
Q

Preservation benefits of implants:

A

adjacent teeth are not prepped, less likely to cause caries, higher level of perio health, better gingival appearance and health

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36
Q

Potential issue w placing a conventional FPD in the esthetic zone:

A

margins may show w recession

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37
Q

This must be done first to place an implant if a tooth has never erupted:

A

bone grafting, or possibly do both at the same time

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38
Q

Skinny implant diameter:

A

33/3.5, ideal for 24/25

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39
Q

Placement of #3 implant

A

just below sinus

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40
Q

Implants are made of:

A

alloplastic material(s)

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41
Q

Diameter of mini implants:

A

2.3 and below

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42
Q

mini implant placement:

A

through soft tissue, above or 3,4,5,mm

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43
Q

Tissue level implant: (check)

A

screw portion buried in bone, part flares out at level of mucosa, glossy and polished, stays at mucosal height, does not protrude into oral cavity

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44
Q

Thin layer covering the bone:

A

periosteum

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45
Q

implant that gets primary support by resting on bone:

A

eposteal

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46
Q

implant in alveolar and/or basal bone and transecting only 1 cortical plate:

A

endosteal

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47
Q

implant that penetrates both cortical plats and passes through the full thickness of the alveolar bone

A

transosteal/ transmandibular

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48
Q

most commonly used type of implant:

A

endosteal

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49
Q

Eposteal, aka:

A

subperiosteal

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50
Q

Transosteal, aka:

A

transmandibular

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51
Q

2 types of endosteal implants:

A

plate form (blade implants), root form (root shaped)

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52
Q

Implants used primarily for edentulous arch:

A

eposteal, transosteal

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53
Q

Type of implant that looks like a cork-screw in bone:

A

endosteal root form

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54
Q

Type of implant that has a long span, horizontally positioned RGO metal piece:

A

endosteal blade implant

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55
Q

Are endosteal blade implants an option for a person w severe bone loss?

A

yes

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56
Q

Location of implant on weblike full coverage maxillary RGO structure:

A

bw periosteum and bone, submaxillary implant

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57
Q

submaxillary implant:

A

bw periosteum and bone

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58
Q

To identify transosteal:

A

implant protrudes below the mandible

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59
Q

Transosteal transect both ot these part of the bone:

A

coronal and apical cortical plates (check)

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60
Q

Osseous integration depends on:

A

quality of the bone

61
Q

Define osseointegration:

A

bone to implant w/o CT bw

62
Q

sits between bone and periosteum (makes new bone w osteoblasts), so there will be a thin layer of bone above the implant:

A

eposteal

63
Q

TF? Root form endosteal implant will lead to oseointegration.

A

T

64
Q

Implants req these 2 things for osseointegration anchorage and retention:

A

mechanical retention, bioactive retention

65
Q

This provides bioactive retention:

A

hydroxyapetite, bond directly to bone

66
Q

Provides mechanical retention:

A

metallic substrate (Ti or alloy) w UC’s like vents, slots, dimples, screws in direct contact w bone and no chemical bonding

67
Q

How to get 100% bone contact in implant interface:

A

impossible

68
Q

TF? Successful implant requires CT bw bone/implant interface.

A

F!!!

69
Q

__mm of bone undergoes necrosis after implant placement.

A

1mm

70
Q

What type of bone undergoes necrosis after implant placement

A

cortical bone, spongy bone aroundt he cortical bone

71
Q

How long does it take or bone to start growing after implant?

A

right away

72
Q

Cause of initial bone loss with implant placement:

A

drilling, thermal and mechanical trauma

73
Q

Fibrous integration leads to:

A

failure of implant

74
Q

2 major causes of implant failure:

A

bac bw implant and bone, implant too small

75
Q

SIze of hole in relation to size of implant:

A

smaller, usually 0.5mm, mechanical retention is our first

76
Q

How to prevent bac:

A

OHI for implant

77
Q

periodontitis of an implant:

A

Perimplantitis, leads to implant failure

78
Q

What happens to hematoma that forms bw bone/ implant interface?

A

transformed to new bone through calous formation

79
Q

Damaged bone undergoes these 3 processes;

A

revascularization, demineralization, reminarlization

80
Q

Remodeling of bone begins when:

A

loading begins

81
Q

Non-mineralized CT of implant failure is a kind of:

A

pseudoarthrosis that forms in border zone of implant

82
Q

Durability phase, aka:

A

loading period

83
Q

Strength phase, aka:

A

healing period

84
Q

Stabilization phase, aka:

A

placement

85
Q

drilling into bone is called:

A

osteotomy

86
Q

osseointegration process takes:

A

allow 2-3mo

87
Q

There is a high level of bone maturation during htis phase:

A

Loading period/ durability phase

88
Q

These form and adhere to the implant surface during the stabiliazation phase:

A

subendosteal and subperiostical calluses

89
Q

When is weak woven bone formed:

A

6wks

90
Q

Cells that replace non-vital bone with lamellar, weight bearing bone:

A

osteoclasts

91
Q

TF? Assuming implant continued success, a pt will remain in the durability phase for life.

A

T (check)

92
Q

All screw shaped implants are:

A

root form (check)

93
Q

Found at the Interface of healthy bone and titanium implants

A

titanium oxide

94
Q

Cells in bone that face the titanium interface:

A

osteocytes

95
Q

Mucoperiosteal-Implant interface:

A

implants establishes CT seal

96
Q

What does the mucoperiosteal-Implant interface prevent?

A

the ingress of oral toxins and bacteria, initial tissue inflammation around site

97
Q

The mucoperiosteal-Implant interface, an epi seal, is similar to:

A

gingival tissues and has a a sulcus

98
Q

Tissue type of the mucoperiosteal-Implant interface:

A

non-keratinized, 3-4mm deep

99
Q

thin biotype mucusa

A

1-2mm sulcus

100
Q

thick biotype mucosa:

A

3-4 mm sulcus

101
Q

When drilling in bone, always use this type of irrigation:

A

sterile saline

102
Q

Causes of failure:

A

premature loading, apical migration of JE to interface, placed w too much pressure, overheating, loose

103
Q

Healing time for Man implant

A

ait 3 mo

104
Q

Healing time for maxillary anterior implant

A

softer bone, 4mo

check

105
Q

Healing time for maxillary posterior

A

6mo (check)

106
Q

RPM to use for final phase of implant placement:

A

15-30 RPM

107
Q

If the implant moves more than __um, it was probably due to premature loading

A

28

108
Q

RPM for drill in anterior mandible:

A

1000 RPM

109
Q

Mean % implant loss in Type 1-3 bone:

A

4%

110
Q

Mean % implant loss in Type 4 bone:

A

16%, posterior maxilla

111
Q

What does the screw screw into:

A

abutments

112
Q

what is on the onther side of the screw than the abutment:

A

crown

113
Q

What fits intot he implant?

A

abutmante

114
Q

What does the inside of the implant look like?

A

post inside is hollow with thread

115
Q

Amt o clearance needed for clearance from the occlusal plane for the implant crown:

A

2mm

116
Q

of surgical stages for a tapered wall implant:

A

2

117
Q

of surgical stages for a straight walled implant

A

1

118
Q

List the surgical stages for tapered walled implant:

A

cover screw, then healing abutment

119
Q

Cork screw and healing abutment:

A

Healing abutment in implant, similar diameter of implant, suture flap around abutment, will see emergence profile and embrasure spaces with 1st stage

120
Q

Type of implant we use:

A

internal Hex, abutment in implant

121
Q

Types of hex:

A

internal, external

122
Q

Types of abutments:

A

engaging, non-engaging

123
Q

Type of abutment required for single teeth:

A

engaging, does not allow for rotational movement

124
Q

When to use non-engaging abutment:

A

when position does not need to be completely fixed

125
Q

What is engaged when we say engaging abutment:

A

the hex

126
Q

Go with this type of implant if implant is placed in the wrong direction:

A

non engaging, gives you freer range of motion

127
Q

Types of abutments:

A

standard, fixed, angled, tapered, nonsegmented or UCLA

128
Q

What type of abutment is the standard?

A

screw-retained crown

129
Q

What type of abutment is the fixed?

A

cemented crown

130
Q

What type of abutment is the angled?

A

cement or screw-retained crown

131
Q

What type of abutment is the tapered:

A

screw-retained crown

132
Q

What type of abutment is the nonsegmented or UCLA:

A

screw

133
Q

inclination of a tooth that can be fixed with a non-engaging abutment:

A

30’ (check)

134
Q

1 reason why %#8 and 9 are so hard to restore;

A

must preserve incisal papilla, black triangle, won’t grow back

135
Q

MD dimesion requred to restore 8:

A

6-7mm

136
Q

How to visuallze needed angulation of teeth:

A

whte stripe material on wax up to do RG template, appears RGO, take cephalometric

137
Q

Color of surgical template:

A

clear

138
Q

What is the surgical guide?

A

Clear rg guide w a hole in the occlusal surface to direct surgeon

139
Q

Endoseos implant materials;

A

titanum, HA (tribasic calcium phosphate), glass ceramic

140
Q

subperiosteal implant material:

A

Co-Cr-Mo

141
Q

Brittle endoseous material:

A

glass sercamis

142
Q

Material that can be used for implants:

A

ti, Co-Cr-Mo, HA (Tribasic calcium phosphate), glass ceramic, zirconium, polymeric materials

143
Q

Adv of Ti as implant material;

A

biocompatible, corrosion resistant, light weight, low density, low modulus, high tensile strength

144
Q

If a metal is corrosion resistant it will form:

A

oxide layer (check) Ti, does

145
Q

CPT sf:

A

commercially pure titanium

146
Q

Grades of CPT:

A

1-4

147
Q

What is the difference in grades of Ti?

A

ultimate tensile strength and amt of oxygen and iron

148
Q

WHich has higher tensile strength, CPT or CP4 ot Ti-6AL-4V?

A

Ti (240MPa, 550MPa, 930 MPa)

Implant Dentistry (7 decks)

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