implantz

Question 1

buccal/lingual plate dimension

Answer 1

1 mm

Question 2

maxillary sinus/nose distance

Answer 2

1 mm

Question 3

incisive canal and implant

Answer 3

avoid midline maxilla

Question 4

IAN implant distance

Answer 4

2 mm from superior aspect of bony canal

Question 5

mental nerve implant distance

Answer 5

5 mm from anterior or bony forament

Question 6

inferior border/implant distance

Answer 6

1 mm

Question 7

adjacent natural tooth/implant distance

Answer 7

2 mm

Question 8

inter-implant distance

Answer 8

3 mm between outer edge

Question 9

what leads to tissue loss

Answer 9

natural remodeling after ext

traumatic ext

congenitally missing teeth

longterm wear of prosthesis

pneumatization of maxilla sinus

trauma

resection of pathology

Question 10

horizontal augmentation indicated for what type of defects

Answer 10

small, well defined, concave defects

Question 11

what does the membrane do in GBR

Answer 11

isolates defect from surrounding soft tissue

stops fibroblast ingrowth you only want osteogenic cells

Question 12

what is block grafting

Answer 12

augment horizontal dimension of alveolus using graft shaped like a blcok

Question 13

block grafting: cortical or cancellous

Answer 13

cortical with or without cancellous

Question 14

when is block grafted site ready for implant placement

Answer 14

4-6 mos

Question 15

intraoral donor sites: where

Answer 15

chin or ramus

Question 16

intraoral donor sites: when

Answer 16

isolated defects 1-2 cm in size

Question 17

intraoral donor sites: what type of bone

Answer 17

no cancellous needed

Question 18

intraoral donor sites: risk

Answer 18

small but real risk of paresthesia

Question 19

iliac crest donor site disadvantages

Answer 19

need two surgeons

sterile field needed, limits venue/cost

extraoral scar, site distant from oral cavity might not be cool with pt

Question 20

prosthesis use after bone grafting?

Answer 20

non load bearing, limit wear

Question 21

why is vertical augmentation difficult

Answer 21

pressure from soft tissue envelope or a prosthesis

Question 22

concerns with vertical augmentation with grafting

Answer 22

increased risk of graft/membrane exposure

bone graft doesn’t fit on site well/can’t fixate it

Question 23

t/f: resorption rates are higher with vertical than horizontal augmentation

Answer 23

true

Question 24

distraction osteogenesis for vertical augmentation

Answer 24

surgically lengthen bone

new bone forms in gap

soft tissue envelope expands

Question 25

latent period in DO

Answer 25

4-7 days revascularization osteoprogenitor cells accumulate

Question 26

distraction period in DO

Answer 26

1 mm per day osteoblast induction woven bone formation

Question 27

consolidation period in DO

Answer 27

2-3 mos active distraction completed bone remodels into mature bone

Question 28

DO advantages

Answer 28

minimal relapse bigger mvmts soft tissue follows bone low morbitidy

Question 29

DO disadvantages

Answer 29

distractor arm consolidation phase

Question 30

when can orthodontic eruption be used

Answer 30

correct vertical periodontal defects correct uneven/osseous gingival levels

Question 31

what does ortho eruption requrie

Answer 31

good root, non restorable crown

Question 32

what happens to bone placed during sinus augmentation

Answer 32

remodels into load bearing bone

Question 33

autograft vs allograft time frames

Answer 33

``` autograft = 4 mos allograft = 6-8 mos ```

Question 34

indirect sinus augmentation

Answer 34

performed through the implant osteotomy

Question 35

when would you do indirect sinus augmentation

Answer 35

you can place the implant but need a few additional mm of bone

Question 36

how much bone can you expect to get from indirect sinus aug

Answer 36

4 mm

Question 37

sinus augmentation post op

Answer 37

sinus precautions abx nasal decongestant mucolytic

Question 38

good case for immediate loading in esthetic zone...

Answer 38

healthy gingival collar thick biotype no active infection adequate bone

Question 39

immediate loading in esthetic zone technqieu

Answer 39

atraumatic ext (peristomes/surgical) pilot hole drilled using guide (check CEJ and labial surface?) osteotomy created in palatal bone and 4 mm beyond apex bone augmentation in peri-implant defect collaplug NO primary closue

Question 40

do you want primary closure with immediate loading in EZ

Answer 40

no

Question 41

unrecognized problems with IL in EZ

Answer 41

thin tissue biotype inadequate facial bone height period bone loss around natural tooth

Question 42

surgical error in IL in EZ

Answer 42

traumatic ext facial malposition of the implant implant diameter too large

Question 43

posterior mandible options

Answer 43

short implants and over engineer extract anterior teeth nerve reposition grafting

Question 44

options for pt with atrophic maxilla that wants fixed prosthesis

Answer 44

zygomatic implants to avoid sinus

Question 45

advantages of zygomatic implants

Answer 45

no sinus augmentation (no harvesting, reduces tx time, may decrease cost)

Question 46

disadvantages of zygomatic implants

Answer 46

technique sensitivy long surgery difficult access GA co existing morbidities

Question 47

all on four implants

Answer 47

2 implants parallel to sinus wall 2 in anterior

Question 48

rigid frame of all on four allows for...

Answer 48

off axis loading of the angled implants