Dental Implants in Health

Question 1

T/F: If an implant does not reach 100% osseointegration, it is not considered stable.

Answer 1

False. An implant never reaches 100% osseointegration. Typically implants have 60% osseointegration between 1 and 18 years of loading. The exact amount of osseointegration needed for “success” is not precisely known.

Question 2

Can osseointegration be measured?

Answer 2

Yes, there are tools that help us to measure this.

Question 3

What is the ideal tolerable “jumping distance?”

Answer 3

20 - 40 micrometers

Question 4

What should be happening within the first 24 hours of implant placement?

Answer 4

resorption of the cortical bone
woven bone formation in the spongy bone
blood clot formation
proliferation of vascular structures into newly forming granulation tissue

Question 5

What should be happening with the first week of implant placement?

Answer 5

reparative macrophage and undifferentiated mesenchymal cells

modeling at the apical trabecular region and at the “furcation sites” of a screw-shaped implant

Question 6

What should be happening within the first two weeks of implant placement?

Answer 6

new bone formation can be detected at the “furcation sites”

Question 7

What should be happening up to 6 weeks of implant placement?

Answer 7

callus formation and lamellar compaction within woven bone

Question 8

When do you see the plateau effect of the implant stability?

Answer 8

after 6 weeks of placement

Question 9

When can you begin to load the implant?

Answer 9

maxilla: 6 months
mandible: 3 months

Question 10

What are the different “types” of loading?

Answer 10

immediate loading
early loading
late loading
progressive bone loading

Question 11

What are the different type of implant materials typically used?

Answer 11

TPS: titanium plasma sprayed
SLA: sand blasted acid etched
HA: hydroxyapatite
TCP: tricalcium phosphate

Question 12

What is the most popular material for implant?

Answer 12

titanium

-biologically inert

Question 13

How much bone should the implant be surrounded by?

Answer 13

1 mm all around the implant

Question 14

What is the minimum bone thickness between an implant and tooth?

Answer 14

4 mm

Question 15

What is the minimum bone thickness between and implant and another implant?

Answer 15

3 mm

Question 16

What is the maximum angle an implant can be placed at?

Answer 16

20 degrees

Question 17

What is the biological width of an implant?

Answer 17

3 mm

Question 18

What are three ways to evaluate dental implants?

Answer 18

peri-implant probing
existence of mobility
radiographic exam

Question 19

What is RFA (resonance frequency analysis)?

Answer 19

resonance frequency of an object is strongly correlated to the boundary contrains of the structure
it measures on a scale of 1 to 100. You want at least a 60

Question 20

Do you need keratinized tissue or attached gingiva around dental implants?

Answer 20

Yes. It affects the long-term stability of the implant

Question 21

Describe the one-step process of inserting an implant

Answer 21

You place the implant and immediately detect good stability, so you place a provisional crown on the implant immediately after placing it. The implant is NOT functional at this point, though; however, it is exposed to the oral cavity

Question 22

Describe the two-step process of inserting an implant.

Answer 22

Make an incision-create a flap
drill, place the implant
replace the mucosa over the implant
After osseointegration has occurred, make an incision in the mucosa to reveal the implant and then place a temporary crown

This is an ideal method for an aesthetic zone