implant parts and components

Question 1

possible designs

Answer 1

one or two piece, mostly two piece now

Question 2

implant level designs

Answer 2

bone and tissue level
tissue used mainly in posterior and bone used in both (bone more common)

Question 3

hex designs for implants

Answer 3

internal/external
depends on location of connection area
mainly use internal hexes now

Question 4

Platform switch vs Non-Platform switch

Answer 4

mainly use platform swithcing due to decreased crestal bone loss

Question 5

Drivers

Answer 5

• Used to tighten or loosen implant parts and
  screws.

Question 6

• Cover screw / Closure screw / Closure cap

Answer 6

• Screwed into the implant at the time of initial placement. Prevents bone, soft tissue and debris from getting into the implant fixture during healing.
• Used when 2 stage approach is desired. Will be covered by soft tissue during implant osseointegration phase.

Question 7

• Healing Abutment

Answer 7

• Screws into the implant to facilitate tissue healing.
• Placed after implant is uncovered at 2nd stage surgery or directly when single stage approach chosen.

Question 8

Impression Coping

Answer 8

• Part used for making an implant impression.
• Screwed directly into the implant or placed over an abutment previously screwed into the implant.

Question 9

Implant Analog/Replica

Answer 9

• Exact replica of an implant fixture.
• Used to replicate the implant’s position in the patient’s mouth and needed to fabricate the implant prosthesis.

Question 10

Abutment Analog/Replica

Answer 10

• Replica of an abutment.
• Used for prosthesis fabrication at the abutment level.

Question 11

Temporary Abutment

Answer 11

• Part that supports/retains an interim prosthesis.
• Screwed into the implant.

Question 12

cemented and screw retained crowns

Answer 12

mainly use screw retained now due to ease of screw and no cementation required (can cause inflamm/bone loss and limit removal options)
screw is one piece assembly and cemented crown would be two (must place abutment then cement crown to abutment)

Question 13

cons of screw retained?

Answer 13

chipping near access hole
comestic app

Question 14

Torque Wrench

Answer 14

• Used in combination with an implant driver to tighten the prosthetic screw to a pre-determined force measured in Newton-centimeters (Ncm).

Question 15

Every implant system will require a different?

Answer 15

Every implant system will require a different torqueing force indicated by the manufacturer.

Question 16

how to use torque wrench

Answer 16

• Torqueing of the screw is performed using both hands: one hand holds the driver in place while the other hand performs the torqueing by activating the wrench’s lever up to the required value

Question 17

Torqueing values for definitive implant screws andcomponents at time of final delivery:
Nobel Biocare:
Straumann:
Astra Tech:

Answer 17

Nobel Biocare: 35 Ncm
Straumann: 35 Ncm
Astra Tech: 25 Ncm