Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oral Surgery > Implants > Flashcards

Implants Flashcards

1
Q

What is the early tissue response to implants?

A
  1. Initial implant wound
  2. Following days: blood clot followed by granulation tissue and then vascular invasion

1 week: osteoclasts invasion
2 weeks: early woven bone
4 weeks: 1st phase of true integration
4 months: fully matured remodelling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How can the surface of the implants be altered?

A 
Grit blasting
blasting and etching
etched
HAP coated
Oxidised surfaces
Titanium plasma sprayed surface
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the purpose of altering the implant surface?

A

Provides better initial stability in bone
greater contact area for integrration
surface that retained better blood clot
stiumulation of bone healing process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the structural types of implants?

A

Isotropic and Anisotropic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are isotropic implants surfaces?

A

surface structure without a dominating direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are anisotropic surfaces?

A

processes which involve turning and milling to produce a distinct pattern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what radiographic views are taken for implants?

A

primary and secondary views

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are primary views?

A

Intra oral

Panoramic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the secondary views?

A

CT scan
Allow segmental measuring jaws
identifies structure eg nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How can we asses the bone?

A

Quality and Quantity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How can we assess bone quality?

A

Type 1, 2, 3, 4,
Type 1: Almost entire jaw comprimises homogenous cortical bone
Type 2: a thick layer of cortical bone surrounds a core of trabecula bone
type 3: a thin layer of cortical bone surrounds a core of dense trabecular bone of good strength
type 4: a thin layer of cortical bone surrounds a core of low density trabecular bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the different bone quantities?

A

A: most alveolar ridge is present
B: moderate resorption is present
C: Advanced resoprtion has occurred and basal bone remains
D: minimal to moderate resoprtion of basal bone occurred
E: extreme resoprtion of basal bone occurred

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is bone height ?

A

distance from a bone level where the width is sufficient to a limiting anatomical structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is bone height best measured?

A

tomograms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is guided tissue regeneration?

A

Place barrier membrane

Space can only be invaded by bone cells and creates new bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What materials can be used for GTR?

A

PTFE
Gortex
Collagen

and can be draped and pinned

17
Q

When would a sinus lift be performed?

A

insufficient bone

pneumatised sinus

18
Q

How can you perform a sinus lift?

A

internal lift

lateral lift

19
Q

How can the ridge be aurgmented?

A

autogenous
allograft
Xenograft

20
Q

What is an autegnous graft?

A

graft which is harvsted from else where in the body

21
Q

What is an allograft?

A

graft fro another pateint eg mineralised freeze dried

22
Q

What is a xenograft?

A

harvested from another species

23
Q

WHAT ARE THE sites avaible for autogenous grafts?

A

Locally: from within the implant prepartion site
from mandib ramus, or symphysis

Distant: from tibia, ilial crest, vascularised free flaps

24
Q

What are the advnatges of block bone grafts?

A

Good incoporation
less volume loss
shorter healing timebetter bone qiality

25
Q

What are the disadvanatges of using endosteal bone?

A

needs a high vascualr site

26
Q

What are the advnatges and disadvantges of using tibia grafts?

A

AD: GA/LA, takes 30-40 mins and 20-40cm cubed bone can be used, minimal blood loss and immediate post op eight bearing with minimal brusing and scarring

Dis: cannot obtain block bone, pateint with hisyory of knee injury, pt with RA or metabolic bone disease

27
Q

What are the AD and DIS of iliac crest grafts?

A

Ad: Block and cancellous bone, large quantity, reloavetly accesible, and small scar

DIS: hospital admissio for GA, short term altered gate, bleeding potential, post op pain and parasthesia

28
Q

Where can vasucalrised free flaps be obtained?

A

Iliiac crest using DCIA and Fibula using peroneal artery

Oral Surgery (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions