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Occlusion > Implants > Flashcards

Implants Flashcards

1
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 prosthesis

A

Dental implant

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2
Q

What are the 3 types of implants?

A

Periosteal, transosteal, and endosteal

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3
Q

A _____ implant is on or around the bone

A

Periosteal

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4
Q

A ____ implant goes through the bone

A

Transosteal

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5
Q

A _____ implant is in the bone

A

Endosteal

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6
Q

What type of imaging technique allows exact implant placement?

A

CT scan or cone beam image

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7
Q

A _____ implant goes on top of the bone; resorbs the bone

A

Subperiosteal implant

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8
Q

Which arch should a subperiosteal implant not be place on?

A

Maxilla

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9
Q

Materials–Surgical stainless steel (316L)–Titanium–Gold alloy–Metals with ceramic coatings•

Indication –mandible with alveolar ridge height < 10mm

A

Transosteal implant

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10
Q

Direct structural and functional contact between ordered, living bone and the surface of a load carrying implant; provides predictability

A

Osseointegration

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11
Q

Upon placement, ____ is deposited on the surface of the implant firmly anchoring it in the surrounding bone.

A

bone

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12
Q

There is no ______ interface between the surface of the implant and the adjacent bone; As a result epithelial migration along this interface is prevented

A

fibrous connective tissue

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13
Q

Who discovered osseointegration?

A

P.I. Branemark

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14
Q

In these experiments Branemark used an optical chamber made of _____. When he attempted to remove the chamber from its bone site he noticed that the bone adhered to the chamber with great tenacity.

A

titanium

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15
Q

most metals are not suitable as biomaterials because corrosion of these metals result in continuous release of _______ into adjacent tissues.

A

metal ions

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16
Q

The presence of these ions cause acute and chronic ______ responses which eventually result in fibrous encapsulation of the offending material.

A

inflammatory responses

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17
Q

Titanium however is resistant to _____ and spontaneously forms a coating of titanium dioxide, which is stable, biologically inert and promotes the deposition of a mineralized bone matrix on its surface. In addition, it is strong, and easily machined into useful shapes.

A

corrosion

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18
Q

is stable, biologically inert and promotes the deposition of a mineralized bone matrix on its surface; In addition, it is strong, and easily machined into useful shapes.

A

titanium dioxide

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19
Q

_____ is the physiological process through which new blood vessels form from pre-existing vessels.

A

Angiogenesis

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20
Q

Plasma proteins are attracted to the area, accompanied by platelet activation and the release of _____ and _____

A

cytokines and growth factors

21
Q

_______ cells migrate via the fibrin scaffold of the clot to the osteotomy site and the surface of the implant

A

Mesenchymal stem cells

22
Q

The mesenchymal stem cells differentiate into _____ and begin to deposit bone on the surface of the implant and the walls of the osteotomy site, eventually leading to anchorage of the implant in bone.

A

osteoblasts

23
Q

How long do the initial events of osseointegration take?

A

8 weeks to 4 months

24
Q

What kind of bone is deposited in the first few weeks post op?

A

Woven bone

25
Q

What type of bone is woven remodeled into and takes 6-20 weeks?

A

Lamellar bone

26
Q

Prerequisites for Achieving ______
•Uncontaminated implant surfaces
•Creation of congruent, non-traumatized implant sites
•Primary implant stability
•No relative movement of the implant during the healing phase

A

Osseointegration

27
Q

Surface roughness of implants provides increased ________

A

Increased surface area

28
Q

•Screws into the implant to facilitate tissue healing•Placed after implant is uncovered

A

Healing Abutment

29
Q

Part that supports/retains prosthesis•Screwed into the implant

A

Prosthetic Abutment•

30
Q

Facilitates making the impression for the restoration•Snaps over abutment onto implant or is screwed directly into implant

A

Impression Coping•

31
Q

Replica of implant body•Needed to fabricate prosthesis

A

Implant Analog/Replica•

32
Q

_______ beyond the physical limits of hard tissues has been suggested as the primary cause of initial and long term bone loss around implants.

A

Mechanical stress or strain

33
Q

A tooth exhibits _____ vertical movement than an implant. This may result in higher occlusal loads on the implant.

A

more

34
Q

Tooth is connected to bone by ____

A

PDL

35
Q

Implant is connected to bone by _____

A

functional ankylosis

36
Q

The force of impact on an implant is _____ (increased or decreased)?

A

Increased

37
Q

Is there any mobility in an implant?

A

No

38
Q

Is there more or less apical movement in an implant?

A

Less

39
Q

Is there more or less lateral movement in an implant?

A

Less

40
Q

Is there more or less tactile sensitivity in an implant?

A

Less

41
Q

When an ______ is placed on an implant body the compressive stresses on the opposite side of the implant increase and the tensile and shear loads on the same side of the implant increase

A

angled load

42
Q

____ angles can modify the direction of force to the implant during mastication or parafunction

A

Cusp angles

43
Q

The force of the cusps should be on _____ of occluding teeth

A

Central fossa of occluding teeth

44
Q

The use of ____ (more or less) implants will allow better stress distribution.

A

More

45
Q

Too much stress in the implant leads to ____ of implant

A

Loss of implant

46
Q

There is now overwhelming evidence that a ______ overdenture should become the first choice of treatment for the edentulous mandible.

A

two-implant

47
Q

________ attachments in the lower jaw will provide minimal needed retention for the lower denture at an economical cost.

A

Two ball attachments

48
Q

The ____ abutments vary in height. You want to chose the height that will leave about 1.5 mm showing above the tissue.

A

zest abutments

49
Q

Which retention male is used in the zest abutment most often?

A

Pink retention male (3 lb)

Occlusion (13 decks)

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