Dr. Malek's lecture (all short ans. questions)

Question 1

Implant Success Criteria: Individual unattached implant that is _______ when tested clinically.

Answer 1

IMMOBILE (tested the same way as a normal tooth)

Question 2

Implant Success Criteria: Radiograph that does not demonstrate evidence of periimplant ________.

Answer 2

radiolucency

Question 3

Implant Success Criteria: Bone loss that is less than ___ mm annually after the implant’s first year of service.

Answer 3

0.2 mm annually

Question 4

Implant Success Criteria: Individual implant performance that is characterized by an absence of persistent and/or irreversible signs and symptoms of ______, infections, necropathies, paresthesia, or violation of the mandibular _____.

Answer 4

pain…canal

Question 5

Implant Success Criteria: A success rate of ___% at the end of a 5-year observation period

Answer 5

85%

Question 6

Implant Success Criteria: ___% at the end of a 10-year observation as a minimum criterion for success.

Answer 6

80%

Question 7

What is the main difference in biological attachment between a natural tooth and an implant?

Answer 7

the PDL…none on an implant

Question 8

What is the main advantage of a bone level implant?

Answer 8

Esthetics-no metal color/control of emergence profile

Question 9

What is the main disadvantage of a bone level abutment?

Answer 9

need a healing abutment for soft tissue managment

Question 10

What is the main advantage of a tissue level abutment?

Answer 10

can do a 1 stage, soft tissue forms easier

Question 11

How far do you want the end of your abutment to be from the adjacent CEJ again?

Answer 11

2-3mm

Question 12

A ________ between your abutment and implant body can be the cause of bone loss

Answer 12

microgap

Question 13

Perio Boards: Tell me how bone forms… What are the two ways?

Answer 13

1.Intramembranous 2. Endochondral

Question 14

Perio Boards: Tell me how bone forms…What type of formation comes directly from Mesenchymal Connective Tissue

Answer 14

INTRAMEMBRANOUS

Question 15

Perio Boards: Tell me how bone forms…Where are the 4 locations that Intramembranous bone formation are found?

Answer 15

1.MANDIBULO-CRANIOFACIAL COMPLEX 2.illium 3.clavical 4.scapula

Question 16

Perio Boards: Tell me how bone forms…Which mechanism of bone formation is in intraoral bone augmentation?

Answer 16

INTRAMEMBRANOUS

Question 17

Perio Boards: Tell me how bone forms…How does endochondrial bone formation work?

Answer 17

bone forms directly from pre-existing cartilage

Question 18

What is the most common bone type for implant failure?

Answer 18

Type IV (thin cortical layer, low density trabecular)

Question 19

Bone Biology: ________ bone-Poorly mineralized bone
Formed by multinucleated osteoclasts as they remove the blood clot or necrotic tissue immediately after implant placement

Answer 19

Osteoid bone

Question 20

Bone Biology: ________ bone-Grows fast (100 μm per day)

Answer 20

Woven bone

Question 21

Bone Biology: ________ bone-Random orientation of collagen fibrils….High cellularity…Limited mineralization

Answer 21

woven bone

Question 22

Bone Biology: ________ bone-Poor biomechanics capacity……Grows by apposition or conduction using the implant as a scaffold

Answer 22

woven bone

Question 23

Bone Biology: ________ bone-Forms 1-2 months under the effect of load

Answer 23

Lamellar bone

Question 24

Bone Biology: ________ bone-Parallel collagen fibers…..grows slowly-a few microns per day

Answer 24

Lamellar bone

Question 25

What is the most important factor when debating to use an immediate implant or not?

Answer 25

PRIMARY STABILITY

Question 26

Principles of bone regeneration: #1 bone supply aka _________

Answer 26

angiogenesis

Question 27

Principles of bone regeneration: Osteo_____ cell migration from defect periphery

Answer 27

GENIC

Question 28

Principles of bone regeneration: Well-vascularized ________ tissue formation

Answer 28

granulation

Question 29

Principles of bone regeneration: Biomechanically stable _______

Answer 29

scaffold

Question 30

Principles of bone regeneration: _______ bone and bone apposition within the defect AND THEN _______ bone formation

Answer 30

woven THEN lamellar

Question 31

Principles of bone regeneration: LETS GET IT! In a nutshell....WHAT ARE THE 6 steps of bone regeneration in progression?!?!

Answer 31

1.Angiogenesis 2.Osteogenic Cell Migration 3.Granulation Tissue 4.Scaffold 5.Woven bone 6.Lamellar bone

Question 32

Review-Bone Grafting material properties: _______-Contain bone forming cells

Answer 32

osteoGENIC (autograft)

Question 33

Review-Bone Grafting material properties: ________-Contain bone inducing substances

Answer 33

osteoINDUCTIVE (allograft)

Question 34

Review-Bone Grafting material properties: ________-Serve as a scaffold for bone formation

Answer 34

osteoCONDUCTIVE (alloplastic/xenograft)

Question 35

Review of the different bone grafting materials: _______-Self, osteogenic, osteoconductive, osteoinductive...very active so resorbs quickly, so place implant quickly!

Answer 35

Autograft

Question 36

Review of the different bone grafting materials:_______-Members of the same species, genetically dissimilar....no worries, pretty stable so you can leave plenty of time between graft and implant placement

Answer 36

Allograft

Question 37

Review of the different bone grafting materials: ______-Another species, biocompatible, osteoconductive...pretty stable too, you can take your time to place an implant

Answer 37

Xenograft

Question 38

Review of the different bone grafting materials: ______-Synthetic, osteoconductive only..."perioglass" essentially just a space filler..

Answer 38

Alloplast

Question 39

Barrier membrane principles! _____ maintenance

Answer 39

space

Question 40

Barrier membrane principles! Prevent ______ migration (___mm/day!)

Answer 40

epithelial...0.05mm/day!

Question 41

Barrier membrane principles! Promote ingrowth of _______ cells

Answer 41

osteogenic

Question 42

Barrier membrane principles! Protect _______ in defect

Answer 42

blood clot

Question 43

What is the MAIN concept of a BARRIER MEMBRANE?!

Answer 43

CELL EXCLUSION!

Question 44

**What is the GOLD STANDARD for barrier membranes?

Answer 44

e-PTFE (expanded POLY - TETRA - FLUORO - ETHYLENE)...aka "GORTEX"..NON-resorbable

Question 45

Which membrane is utilized mainly for space maintenance only?

Answer 45

Titanium reinforced e-PTFE (expanded poly tetra fluoro ethelyne)

Question 46

Out of the resorbable barrier membrane options, which one is more biocompatible?

Answer 46

"natural" barrier membrane-animal collagen origin, enzymatic degradation.....synthetic cause inflammatory response

Question 47

Do resorbable barrier membranes maintain space?

Answer 47

No! No space maintenance!

Question 48

Siebert Class I bone loss is _______ in nature

Answer 48

horizontal

Question 49

Siebert Class II bone loss is _______ in nature

Answer 49

vertical

Question 50

Siebert Class III bone loss is _______ in nature

Answer 50

Horizontal and Vertical

Question 51

Which method of hard tissue grafting includes Regeneration of the supporting periodontal apparatus: cementum, periodontal ligament, alveolar bone

Answer 51

GTR...Guided Tissue Regeneration

Question 52

Which method of hard tissue grafting includes bone formation only and in 1959 cell-occlusive membrane used for spinal fusion

Answer 52

GBR...Guided Bone Regeneration

Question 53

What is the average amount of time after a bone graft before an implant is placed?

Answer 53

9 months

Question 54

Which SOFT tissue graft is used to GAIN ROOT COVERAGE?

Answer 54

Sub-epithelial connective tissue graft (also increases Keritanized gingiva & attached tissue)

Question 55

What are the two things that a free gingival graft accomplishes?

Answer 55

increases KG and increases attached tissue (DOES NOT GAIN ROOT COVERAGE!!)

Question 56

Final Comments on implants: _____-_____ COMMUNICATION!!!!

Answer 56

Peril-Pros COMMUNICATION!!!