Exam 2

Question 1

Nonbiologic device surgically inserted into jawbone to replace tooth or provide support for multiunit prosthesis

Answer 1

Dental implant

Question 2

Replaces individual teeth or multiple teeth by supporting fixed bridge or removable denture

Answer 2

dental implant system

Question 3

the root of the implant that is surgically placed in the living alveolar bone

Answer 3

Implant body

Question 4

titanium post that attaches to the implant body

Answer 4

Abutment

Question 5

 Protrudes partially or fully through the gingival tissue
 Supports the crown or denture
 Biocompatible (not rejected) with the body

Answer 5

Abutment

Question 6

o Surgically placed into living, vital alveolar bone
o Acts as root of implant

Answer 6

Implant body

Question 7

What is the implant body usually made of?

Answer 7

Titanium / titanium alloy

Question 8

What material is used as an alternative to titanium for an implant body?

Answer 8

Ceramics - Zirconia

Question 9

o Metal post that connects prosthesis to implant body and secures prosthesis in place
o Protrudes into oral cavity
o Made of titanium or zirconia

Answer 9

Implant abutment

Question 10

What adapts to abutment post or implant, creating cuff-like perimucosal seal?

Answer 10

Epithelium

Question 11

What functions as barrier between implant and oral cavity?

Answer 11

Epithelium

Question 12

What do implant surfaces lack?

Answer 12

Cementum

Question 13

What serve as barriers to infections?

Answer 13

PDL fibers

Question 14

Direct contact of living bone with surface of implant body

Answer 14

Osseointegration

Question 15

-Absence of clinical mobility of implant
-No discomfort or pain in function
-No increased bone loss or radiolucency
-Less than 0.2 mm of bone loss annually after first year
-Determines implant success

Answer 15

Criteria for osseointegration

Question 16

-Supragingival fibers brace gingival margin against tooth and strengthen attachment of junctional epithelium to tooth
-Periodontal ligament suspends, maintains tooth in socket
-Periodontal ligament fibers serve as barrier to infection

Answer 16

Connective tissue interface on natural tooth

Question 17

-Supragingival fiber bundles support healthy gingiva against abutment
-No periodontal ligament fibers to provide protection
-Periodontal probe passes more easily through inflamed peri-implant soft tissues to apical connective tissue or close to peri-implant alveolar bone

Answer 17

Connective tissue interface on implant

Question 18

What is peri-implant health characterized by?

Answer 18

Absence of:
-erythema
-bleeding on probing
-swelling
-suppuration

Question 19

What may be deeper at healthy implant sites?

Answer 19

Probing depths

Question 20

Plaque biofilm-induced inflammation of soft tissues with no loss of supporting bone localized in mucosal tissues surrounding dental implant

Answer 20

Peri-implant Mucositis

Question 21

-Reversible
-Occurs in 80% of patients and 50% of implant sites

Answer 21

Peri-implant mucositis

Question 22

Periodontitis affecting soft/hard tissues surrounding functioning osseointegrated dental implant

Answer 22

Peri-implantitis

Question 23

What does residual cement from an implant contribute to?

Answer 23

Peri-implantitis

Question 24

What is the existence of alveolar bone dependent on?

Answer 24

Teeth

Question 25

What happens to alveolar bone if teeth don't erupt?

Answer 25

Does not form

Question 26

Characterized by plaque biofilm-induced inflammation and progressive loss of alveolar bone

Answer 26

Peri-implantitis

Question 27

-Primarily result of biofilm-induced infection -Considered precursor of peri-implantitis

Answer 27

Peri-implant mucositis

Question 28

-Result of overwhelming bacterial infection -No single microorganism implicated as the causative agent

Answer 28

Peri-implantitis

Question 29

What are the soft tissue clinical signs of a failing implant?

Answer 29

 Peri-implant pocket  Bleeding on gentle probing  Suppuration from pocket

Question 30

What is the best indicator of implant failure?

Answer 30

Implant mobility

Question 31

What are the radiographic signs of implant failure?

Answer 31

o Vertical destruction of crestal bone around implant while bottom portion remains osseointegrated o Wedge-shaped defects o Bone loss adjacent to implant

Question 32

What are some treatments for a failing implant?

Answer 32

-Nonsurgical periodontal instrumentation -Antiseptics -Local/systemic antibiotics -Access flap surgery & bone grafting

Question 33

Why is light force needed when probing on an implant?

Answer 33

peri-mucosal seal is weakly adherent to titanium surface

Question 34

Why do we take radiographs prior to cementation of the implant crown?

Answer 34

-Ensure absence of pathology -Verify spatial positioning

Question 35

When are baseline radiographs taken of implants?

Answer 35

-Day of implant placement -Day of final prosthesis insertion -During maintenance

Question 36

What is bulky and not suited for subgingival scaling?

Answer 36

Polymer tools

Question 37

What is the maintenance frequency after the restoration of implants?

Answer 37

First year: 3 months After first year: 3-6 months

Question 38

What are the indications for more frequent maintenance intervals for implants?

Answer 38

-Reduced bone support around implant -Inflammation -Host response

Question 39

What are the special considerations for polishing?

Answer 39

Implants Abutments Components not routinely polished

Question 40

What's the only way polishing can improve titanium surfaces?

Answer 40

Only if previously roughened or scratched

Question 41

What polishing is preferred for rough implant surfaces?

Answer 41

Air abrasives

Question 42

What is safe and effective for air polishing?

Answer 42

Glycine powder

Question 43

What are the self care challenges for fixed prosthetic restorations?

Answer 43

-Patient may think its a natural tooth -Must adapt floss gingival margin -May resemble a fixed bridge or complex denture

Question 44

What type of implant body has a better esthetic outcome, especially in patients with thin gingival phenotyoe?

Answer 44

Zirconia

Question 45

What is not possible to be defined on dental implants?

Answer 45

Probing depths

Question 46

How can bleeding and suppuration be removed on dental implants?

Answer 46

Improved biofilm removal

Question 47

What do increased probing depths and presence of bleeding or suppuration warrant?

Answer 47

Radiographs

Question 48

What is used to clean fixed prosthetic restorations?

Answer 48

Standard multi-tufted, soft nylon bristle toothbrush

Question 49

What surfaces is a powered toothbrush safe to be used on?

Answer 49

Titanium surfaces

Question 50

What are interdental brushes effective for with fixed prosthetic restorations?

Answer 50

Biofilm removal and cleaning peri-implant sulcus

Question 51

What can be used to clean a metal bar?

Answer 51

Tufted dental floss or gauze square