implant intro

Question 1

breakthrough

Answer 1

1) branemark discovered titanium metal can fuse to bone
1951
2) 1981 titanium plasma spray
3) 80’s microtexture on surface
4) 90s all on 4s implant technique introduced
5 ) 2-11 hydrophilic surface which speeds osseointegration

Question 2

dental implants in pre-modern era

Answer 2

1) ivory and shells

Question 3

endosteal implants

Answer 3

1) 1938
2) worked but not for long in the patient’s mouth

Question 4

sub periosteal implants

Answer 4

1) done on fully edentulous patients

Question 5

transosseous implants

Answer 5

1) goes through the mandible with a metal plate to hold it under

Question 6

ramus frames

Answer 6

2) improve stability of dentures

Question 7

blade implants

Answer 7

1) increase SA of metal to engage into bone

Question 8

branemark

Answer 8

1) embedded titatnium in rabbits to study bone healing
2) first dental implant patient
- needed dental implants for palatal obturator for cleft lip
2) second patient
- 11 implants still here after 57 years

Question 9

endosseous implants

Answer 9

1) go into bone
- cyclindrical or screw shaped

Question 10

natural tooth vs implant

Answer 10

1) differs at connective tissue level
- no PDL
2) natural sharpies fibers extend from the lamina dura and into cementum of the tooth root, but implant has no cementum or fibers
3) epithelial surface attachment is called hemi-desmosomes
- can survive more physical pressure, but weaker in biological defense

Question 11

osseointegration

Answer 11

1) direct structural and functional connection between living bone and load bearing artificial implant

Question 12

evolution of implant designs

Answer 12

1) changes diameters
2) length
3) external versus internal hex
4) straight versus tapered
5) machined or textured surface treatments
6) micro threads
7) platform switching
8) conical seals
9) thread patterns and domed apex
10) tapered versus self-tapping