12 - Implant restoration Flashcards

1
Q

What are the types of implant retained prosthesis?

A
  • removable (stud, bar, magnet)
  • fixed (single, multi-unit, full arch)
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2
Q

What are the different types of over denture attachment?

A
  • retentive ball
  • LOCATOR (silicone)
  • bar
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3
Q

What are the different types of fixed implant prothesis?

A
  • screw or cement retained
  • single, multi-unit or full arch
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4
Q

What are the purpose of provisional crowns?

A
  • to provide patient with aesthetic result in interim
  • gingival moulding and maturation for final impression
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5
Q

How long should provisional crowns be placed on implants?

A

2-3 months

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6
Q

What are the different types of implant impression?

A
  • open tray
  • closed tray
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7
Q

What is the open tray implant impression technique?

A
  • impression coping screwed into implant
  • impression tray is modified to have access hole over implant area
  • impression taken over top of coping
  • coping unscrewed after impression set
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8
Q

What is the closed tray implant impression technique?

A
  • impression coping friction fitted to implant
  • impression taken over coping
  • coping removed from implant with impression
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9
Q

What are the benefits of an open tray implant impression?

A
  • safer as screw retained
  • one piece
  • adjustable
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10
Q

What are the benefits of a closed tray implant impression?

A
  • no additional preparation of tray
  • cheaper
  • easy to snap on
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11
Q

What impression material should be used for implants?

A
  • impregum
  • rigid so removes implant coping
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12
Q

What complications are associated with screw retained implants?

A
  • technical
  • porcelain fracture (hole for screw weakens crown)
  • screw fracture
  • screw loosening
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13
Q

What complications are associated with cement retained implants?

A
  • biological
  • peri-implant tissue inflammation due to excess cement
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14
Q

What are the factors in the pink aesthetic score?

A
  • mesial papilla
  • distal papilla
  • soft tissue level
  • soft tissue contour
  • alveolar process deficiency
  • soft tissue colour
  • soft tissue texture
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15
Q

How far apart should adjacent implants be?

A
  • 3mm
  • prevent bony necrosis
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16
Q

How far should the contact point be from the alveolar bone?

A

<5mm

17
Q

What are common causes of compromised tissue sites?

A
  • post extraction defects
  • trauma
  • hypodontia
  • periodontal disease
  • thin biotype
18
Q

Why does hypodontia produce a compromised tissue site?

A

Alveolar bone doesn’t develop if the tooth doesn’t develop

19
Q

What are the determinants of an aesthetic outcome for an implant?

A
  • bone volume and morphology
  • space dimensions
  • 3D implant position
  • biotype
  • operator skill and experience