implant Flashcards

1
Q

minimum bone distance for buccal plate, lingual plate, nasal floor, interplant, IAN, mental foramen, implant and natural dentition

A

• Buccal plate – 0.5 mm •
Lingual plate – 1.0 mm
• Nasal floor – 1.0 mm
• Inter-implant distance – 3.0 mm - blue book agrees
• Inferior alveolar canal – 2.0 mm
• Mental foramen – 5.0 mm, due to anterior loop - commonly accepted
• Space between implant and natural tooth – 1.5 mm (some say 2mm) blue book is 1.5 mm

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2
Q

Integration times anterior and posterior maxilla and mandible, and grafted bone

A

Anterior Mandible – 3 months
• Posterior Mandible – 4 months
• Anterior Maxilla – 4-6 months
• Posterior Maxilla – 6 months
• Grafted bone – 4-6 months

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3
Q

immediate load needs to torque to

A

35 ncm

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4
Q

AP spread should be

A

cantilever to last tooth should < 2 times AP spread,

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5
Q

Anterior esthetics – distance below CEJ of adjacent tooth

A

3mm

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6
Q

Interdental papilla – distance from contact point to crestal bone - how likely there will be papilla presennt

A
  • < 5mm papilla present 100 % (98% in blue book)
  • 6 mm papilla present 56 % - same
  • > 7 mm papilla present 27 % - same
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7
Q

kg tissue grafting - when can you do it and what are your options

A

may be done prior to bone grafting,
non- submerged implant placement or
at 2nd stage

• Subepithlial connective tissue graft
• Palatal roll
• Free gingival graft

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8
Q

Edentulous cases and height required per arch

A

locator: 9 mm
bar: 12 mm
crown and bridge: 5 mm (like regular teeth)
Hybrid: 15 mm

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9
Q

causes of peri-implantitis, including the bacteria

A

• Mechanical overload/bruxism
• Biologic - similar bacteria to periodontal disease - gm negative anerobic (p gingivalis, prevotella intermedia)

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10
Q

treatment for peri-implantitis

A

plastic scalers, citric acid (not sure on the percentage), and other decontaminants….

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11
Q

anterior hip graft - soundbite, important anatomy etc (will do later)

A

to be filled in

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12
Q

posterior hip graft (fill in later)

A

will do later

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13
Q

how many mm of anterior posterior resorption in edentulous maxilla may indicate needing support with a denture with a flange

A

10-11mm - or lack of lip support when dentures are out
from bageri case based review.

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14
Q

what angulation do implants have to be parallel for locators

A

15 degrees? need to look up, but can do a bar if not parallel enough with custom abutments?

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15
Q

what are the types of bone? what is the classification system called
this also corresponds with hounsfield units found on page 73 of blue book

A

Misch bone density classification, modified from torabinejad et al
d1 - dense cortical bone - found in anterior mandible
d2 - thick cortical and course trabecular found in anterior mandible, posterior mandible, and anterior maxilla
d3 - thin cortical with dense trabecular - round in the anterior Maxillofacial, posterior maxilla and posterior mandible
d4 - find trabecular, thin cortical - posterior maxilla

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16
Q

cement height vs screw retained height

A

blue book - not sure if this is right.
5 mm for cement
8 mm for screw retained

17
Q

what will happen if implants put in a growing child -

A

appositional growth of bone - the implants will end up more palatal/lingual

18
Q

after an implant is osseointegrated what are highmedium and low stability isq

A

High stability - 70 isq
medium between 60-69
low is below 60
implant stability quotient - not sure how it gets these numbers - some sort of radio frequency??,

19
Q

loading protocols - immediate, early and conventional time periods

A

immediate - up to 7 days after implant placement
early - 6 weeks to 12 weeks after implant placement
conventional - mandible 3 months, maxilla is 4-6 months .

20
Q

classification of edentulous maxilla and mandible

A

cawed Howell - the amount of alveolus vs basilar bone, height and width remaining
1
2 - most of the width and height still present (Immediately post extraction)
3
4 - knife edge, less height
5 - decreasing height
6 - decreasing height

also there is a bedrossian classification that is used for implants - this is zone 1 - anterior (K9-k9), zone 2 middle (premolars?) and zone 3 is posterior (molars)