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Restorative Dentistry BDS4 > Implant Planning and Placement > Flashcards

Implant Planning and Placement Flashcards

1
Q

what is osseointegration

A

direct functional and structural connection between load bearing dental implants and living bone

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2
Q

what is primary osseointegration

A

implant anchored in bone due to frictional forces provided between osteotomy and dental implant design features

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3
Q

what is secondary osseointegration

A

functional connection between bone and implant
living bone grows onto surface of implant

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4
Q

what is the healing process after implant insertion

A

granulation tissue in wound
immature woven bone
mature lamellar bone

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5
Q

what is the supra-crestal tissue like with an implant in it

A

more collagen
less fibroblasts
collagen fibres orientate parallel to implant crown

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6
Q

what is the sub-crestal tissue like with an implant in it

A

implant anchored to bone by direct functional contact
no physiologic adaption present
rigid connection

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7
Q

what materials can be used for implants

A

titanium
titanium zirconium
ceramic

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8
Q

when would you use a bone level implant

A

in aesthetics

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9
Q

when would you use tapered implants

A

increased stability in immediate placement
root convergence apically

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10
Q

what would dictate the length and diameter of implant use

A

site
indication
local anatomy

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11
Q

what are the different surface treatments for implants

A

sand blasting
acid etch
plasma spray

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12
Q

what is the purpose of implants

A

replace missing teeth with aesthetic, functional and predictable restoration

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13
Q

what is assessed prior to extraction of a tooth for dental implant placement

A

prosthetic value of tooth
periodontal status
endodontic status

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14
Q

what medications may compromise implant survival

A

SSRIs
PPIs
bisphosphonates
steroids

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15
Q

what medical conditions can compromise implant success

A

radiotherapy
poorly controlled diabetes
CVS disease

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16
Q

what are the implications of smoking with implants

A

increased failure and peri-implantitis
affects vascularity, fibroblasts, PMN function

17
Q

why do you need to wait for skeletal maturity to place an implant

A

relative infra-occlusion
suboptimal aesthetics
occlusal disharmony
implant fenestration

18
Q

what is a high smile line

A

> 2mm ST show

19
Q

what is a medium smile line

A

<2mm ST show

20
Q

what is a low smile line

A

lip covers >25% of teeth

21
Q

what is examined extra-orally

A

skeletal relationship
incisal cants
gingival cants
width of aesthetic zone

22
Q

what if the favourable gingival biotype

A

thick low scalloped

23
Q

what determines the presence of papilla

A

bone crest to contact point distance

24
Q

what is the favourable bone crest to contact point distance

A

<5mm

25
Q

what would restorations on the adjacent teeth mean for implants survival

A

risk of recession
suboptimal aesthetics

26
Q

what happens if you have a wide edentulous span

A

lots of space to fill

27
Q

what are the disadvantages of having a narrow edentulous span

A

damage to adjacent teeth
necrosis of bone
effect on ST aesthetics

28
Q

what is the relevant maxillary anatomy

A

maxillary sinus
nasal floor
naso-palatine canal
infra-orbital nerve

29
Q

what is the mandibular relevant anatomy

A

IAN canal
mental foramen
incisive canal
lingual perforating vessels
submandibular fossa

30
Q

what does implant positioning depend on

A

implant system
gingival margin
local anatomy
prosthetic plan

31
Q

what is the minimum mesio-distal distance for implants

A

1.5mm

32
Q

why do implants need to be spaced a set distance from neighbouring teeth

A

lowers risk of damage to adjacent teeth
lowers risk of bone necrosis and ST defects

33
Q

what is the bucco-palatal distance for an implant

A

> 1mm bone labially
2mm HT/ST labial to implant

34
Q

what are the aids to planning used

A

study models
diagnostic wax up
surgical template
essex
clinical photographs
CBCT
surgical guide

35
Q

what is analogue planning

A

diagnostic wax up combined with CBCT

36
Q

what is digital planning

A

modern software used prosthetically and surgically to plan placement

37
Q
A

Restorative Dentistry BDS4 (14 decks)

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