Implant Related Diseases

Question 1

About what percentage of people in the US have lost a tooth between the ages of 20 and 49?

Answer 1

69%

Question 2

What are the main criteria for defining implant success?

Answer 2

Absence of mobility
No pain, infection, neuropathy or paresthesia
Absence of peri-implant radiolucency

After first year of loading, no more than 0.2 mm of vertical bone loss

Question 3

What are the different phases of implant “failure?”

Answer 3

ailing implant
failing implant
failed implant

Question 4

What are the conditions you might see with an ailing implant?

Answer 4

peri-implant mucositis

peri-implantitis

Question 5

What are the conditions you might see with a failing implant?

Answer 5

peri-implantitis

Question 6

What are the conditions you might see with a failed implant?

Answer 6

peri-implantitis with mobility and complete loss of osseointegration

Question 7

What is peri-mucositis?

Answer 7

reversible inflammation of the mucosa around the implant

This is kind of an analog of gingivitis

Question 8

What symptoms would someone with peri-mucositis likely present?

Answer 8

presence of bacterial plaque and calculus
edema, redness and mucosal hyperplasia
bleeding on probing
exudate or puss formation on occassions (gingival microabscess)
no radiological evidence of bone resorption

Question 9

What is peri-implantitis?

Answer 9

inflammatory reactions associated with loss of supporting bone around an implant in function

Question 10

What mind you find histologically in a patient with peri-implantitis?

Answer 10

presence of numerous neutrophils in the tissue surrounding the implant
direct contact between plaque on the implant surface and inflamed connective tissue
*these features are not seen in periodontitis

Question 11

T/F: the bacteria that typically causes periodontitis is also the bacteria most often responsible for peri-implantitis.

Answer 11

False. Implants have their very own bacterial profile

Question 12

T/F: occlusal trauma is a primary etiological factor for both periodontitis and peri-implantitis.

Answer 12

False. Occlusal trauma is secondary etiological factor for periodontitis, but it is a PRIMARY etiological factor for implants.

Question 13

What is a class I peri-implantitis?

Answer 13

slight horizontal bone loss with minimal peri-implant defects

Question 14

What is a class II peri-implantitis?

Answer 14

moderate horizontal bone loss with isolated vertical defects

Question 15

What is a class III peri-implantitis?

Answer 15

moderate to advanced horizontal bone loss with broad, circular bony defects

Question 16

What is a class IV peri-implantitis?

Answer 16

advanced horizontal bone loss with broad, circumferential vertical defects, as well as loss of the oral and/or vestibular bone