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Tim's Cards > Tamer Al-Sprinty Q1 Implants > Flashcards

Tamer Al-Sprinty Q1 Implants Flashcards

1
Q

3 Major groups of Dental Implant:

A

Sub-periosteal

Transosteal

Edosteal

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2
Q

Sub-periosteal implants are large and made of Chrome Cobalt, which causes ____ and leads to infection

A

Resorption

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3
Q

Endosteal Mx, Mn, and ____ Blades

A

Ramus

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4
Q

don’t use Endosteal Ramus Blade anymore. They fail and take up a good section of the Ramus

A

True

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5
Q

Epithelial migration caused infections on older, larger implants

A

True

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6
Q

Transosteal implant is a ________, and we no longer use it

A

Through and Through

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7
Q

Osseointigration was discovered by Branemark in the 60’s with what material?

A

Titanium

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8
Q

Pure titanium is a little weak, so now we use Titanium alloy

A

True

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9
Q

Ceramics are the newest implant, used in Europe

A

True

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10
Q

3 Forms of Titanium alloy used in implant dentistry:

Which is most common?

A

Alpha

Beta

Alpha-Beta (most common)

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11
Q

Direct structural/functional contact between living bone and surface of a load-carrying implant

A

Osseointigration

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12
Q

Titanium is resistant to ________

Spontaneously forms coating of ________

This is inert and promotes bone formation on its

A

Corrosion

Titanium Oxide

surface

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13
Q

Gap between implant and bone can’t be too large or too small

A

True

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14
Q

Don’t overheat the implant site when drilling over ____ degrees C

A

47

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15
Q

There should be no micro motion of the implant

there should be no contamination of the implant

A

True

True

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16
Q

There should be ____mm of healthy bone Buccal/Lingual to the implant

A

1mm

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17
Q

If the Implant is mobile, a ____ encapsulation has formed instead of osseointigration

A

Fibrous

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18
Q

Peri-Implant radiolucency can be caused by what 3 things?

A

Contamination

Burn-out at tip (too hot) - no irrigation

Dense bone - burnout

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19
Q

If there is a mean Marginal Bone Loss of greater than _________ after 3 years, there was a problem with the implant

A

1.5mm

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20
Q

Short implants have a higher failure rate

A

True

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21
Q

Type I bone

Type IV bone

A

dense

trabecular

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22
Q

2 reasons Anterior Mn is good for implants:

A

Cortical Bone thick

Trabecular bone dense

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23
Q

Maxillary implants are less effective in the Posterior Maxilla for what 2 reasons?

A

Cortical Bone thin

Trabecular Bone diffuse

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24
Q

Contraindications for Implants: Pregnancy, uncontrolled ______, radiation, unrealistic _________

A

Diabetes

Expectations

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25
Q

The Healing Phase of Implants differs according to what?

A

Manufacturer

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26
Q

If pt is old, ad dexterity, lean toward removables

A

True

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27
Q

Machined surface Implants take ____ months for Osseointigration

A

6 months

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28
Q

2 Early Improvements on Machining Titanium:

Their problems:

A

Sand Blasted: contaminants

Plasma Spray: Giant cells/ macrophage reactive

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29
Q

Rough surfaces create better initial Anchorage

Accelerates biologic events leading to Osseointigration

A

True

True

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30
Q

3 Examples of Surfaces available now on Implants:

A

TiOBlast

Sand/Acid Etched

Double acid Etched

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31
Q

High Crystalline _________ as a coating is best available implant surface today

But there is also a ______ Metal that has proved highly effective

A

Hydroxyapatite

Trabecular

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32
Q

Trabecular Metal is made from __________

*element 73

A

Tantrum

*highly biocompatible

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33
Q

What measures Surface Osseointigration?

A

Bone Appositional Index

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34
Q

Bone Appositional Index is greater with rough surfaces

A

True

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35
Q

HydroxyApatite coatings is more bioreactive and leads to more rapid…

A

Healing

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36
Q

At 6 weeks Appositional Index is close to ____% for HydroxyApatite implants

___% for original titanium surfaces

A

70%

30-50%

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37
Q

Hydroxyapatite has more _____ than titanium coated controls

A

Bone Contact

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38
Q

Machined Ti success rate:

HA-coated Ti success rate:

A
  1. 2%

97. 92%

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39
Q

T/F

Can’t graft height in the Posterior Mn

40
Q

Implants should be at least ___mm in length

___mm in diameter

A

10 mm

4 mm

41
Q

Short and wide diameter implants are susceptible to overload due to unvaforable

A

crown/implant ratio

42
Q

2 strategies used to eliminate Cantilever Effects:

A

Wide diameter

Multiple implants

43
Q

Small diameter Implants can become loose or…

44
Q

If there is less than 1mm of bone Buccal/Lingual to an implant…

45
Q

What system is Pure Titanium?

What is stronger?

A

Branemark

Ti alloy

46
Q

Off axialed loading should be avoided most especially where?

2 reasons why?

A

Posterior Mx

increased forces, poor bone quality

47
Q

Off axis loading of singe unit implant restorations increase stress where?

Vertical loading produces the lowest _____ to supporting bone

A

implant/cortical bone interface

stress

48
Q

Where does off-axis loading increase stress in the Implant?

A

Neck

at tip

49
Q

Where in the mouth should Implants be placed axial to occlusal loads?

Anterior can be off axis b/c forces used are _____ of those used posteriorly

A

Posterior Quadrants

1/4

50
Q

Implant overload is rarely seen in the Anterior

51
Q

Short and angled implants have high failure rates

52
Q

Bone loss around Implants can be caused by what?

A

Infection, overheating bone, Cantilever, occlusal forces, off axis, implant type (too small), type of bone, crown:implant ratio off

53
Q

It is preferable to Splint Implants in the Posterior - only do this if…

54
Q

Central contact of the Implant should be around the Axis Hole

55
Q

If Implant is less than ___mm you should put 1 implant/tooth

If Implants are more than ___mm you can do 2 Implants to replace 3 teeth

56
Q

2 Types of Cantilevers:

A

Buccal/Lingual

Mesial/Distal

57
Q

What type of connection is preferred?

58
Q

If the Occlusal Table is excessively wide, what type of cantiliever is created?

59
Q

Avoid B/L Cantilevers by doing what?

A

Narrowing B/L occlusal table in Posterior Teeth

60
Q

3 cases in which Cantilever is ok:

A

Mx LI *implant either in Central or Canine)

Mn Central *implant in Lateral

Complete Edentulous *Posterior

61
Q

When in doubt, always add the 3rd Implat

62
Q

2 Occlusal Factors to control to avoid Implant Overload

A

Cusp angles

Occlusal table width

63
Q

You should avoid the use of Implants less than __mm

64
Q

External Connections are susceptible to what?

A

Lateral forces tipping crown

*flexes,

65
Q

What design eliminated rotational tipping and micro-movement of crowns on implants?

A

Internal Hex connection

66
Q

Splinting has better distribution of forces and improved anti_______ features

A

rotational

67
Q

2 reasons to not Splint in the anterior:

A

decreased forces

better bone

68
Q

Splint the Anterior if you are working in ______

A

Pink Porcelain

69
Q

Why don’t we Splint to Natural Dentition?

A

PDL flex

Sinking tooth

70
Q

Splinting to natural dentition causes what?

A

bone loss

sinking dentition

71
Q

Eliminate what contacts on Posterior restorations?

Why?

A

working, balancing

no PDL

72
Q

Anterior implant restorations can share some _____

A

Anterior Guidance

73
Q

Can do Implant on smokers, but there is a higher failure rate

74
Q

Pt must be available for ___weeks after Implant placement b/c _____

A

4 weeks

adjustments

75
Q

If pt is Edentulous, what might not provide enough support?

what do we need for the support?

A

Fixed complete denture

Overdenture (has the flanges)

76
Q

The more bone loss you have, the more options you have for the implant/denture set-up for Edentulous pts

77
Q

Edentulous: less than 10mm to gingiva, use…

10-14mm, use…

15-20mm, use…

A

PFM

locator implant, overdenture, fixed detachable

locator, overdenture

78
Q

Implants have longer crowns

79
Q

In the fully edentulous, a high smile line might indicate what?

A

Over-denture

*avoids display of prosthetic border

80
Q

Most commonly a smile reveals how far posteriorly?

2nd most common?

A

2 PM

equal between 1PM and 1M

81
Q

Ideally there should be ___mm of keratinized mucosa around implants

82
Q

Thin scalloped gingiva does better with what?

A

Immediate Implants

83
Q

PFM requires how much interarch space in the Posterior?

Overdenture?

Fixed complete (hybrid)?

A

5 mm

8-10mm

15-20mm

84
Q

Anterior Single Crown: space btwn opposing tooth and implant abutment should be a minimum of…

85
Q

A minimum of 1mm of B/L sides of implant will avoid _________

A

fenestration/dehiscence

86
Q

M/D implant to tooth distance:

Inter-Implant minimum distance:

A

1.5-2 mm

3 mm

87
Q

Keep the Implant at least ___mm away from the Mental Foramen

88
Q

Mn arch implants are usually placed anterior to what?

A

Mental Foramen

*5mm

89
Q

The Inter-Foraminal distance on the Mn should be wide enough to place how many implants?

Ave distance:

90
Q

If you’re using _______ instead of Wax, you don’t have to re-cast

A

Pink Acrylic

91
Q

The emergence profile of the Surgical Stent should be ____mm under the gingiva

92
Q

What is GP for on the surgical guide?

A

radiograph

93
Q

What is sent to Belgium?

94
Q

Implant is place ___mm deep of the Surgical Guide

95
Q

Implant failure in the Esthetic Zone is due to poor judgement/Tx planning

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