Implants Flashcards
What is osseointegration?
A direct functional and structural connection between a load bearing dental implant and organised living bone.
What are the stages of osseointegration
Primary - Frictional forces anchor implant.
Secondary - Bone grows onto surface of implant.
Differences between tooth root and implant?
Supra-crestal
Sub-crestal
What materials used for implants?
Titanium type IV pure.
Titanium-zirconium.
Ceramic implant (Yttra stabilised zirconia).
What is the typical length of an implant?
6-16mm length
Amount of bone needed for implant survival
7mm of bone
What are the main risk factors for implant failure?
Medcial status
Smoking habit
Aesthetic demand
Lip line
Gingival biotype
Shape of crown
Local infection
Restorative status
Width of space
Soft tissue anatomy
Bone defect at implant site
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Which gingival biotypes are at highest risk when placing implants?
Thick low scalloped - low risk
Medium, medium scalloped - medium risk
Thin high scalloped - high risk
Which shapes of crown are high and low risk to implant planning?
High - triangular
Low - rectangular
Which size of space is of high concern when planning implants?
Less than 7mm per tooth
Which bony defects give high and medium risk when planning implants?
Horizontal - medium risk
Vertical - high risk
How can removable implant prosthesis be retained?
Stud
Bar
Magnet
How can fixed prosthesis be retained?
Screw retained
Cemented
What two ways can impressions be taken for implants?
Open tray or closed tray
What can cause compromised soft tissue sites?
Post-extraction defects
Trauma
Hypodontia
Periodontal disease
Thin biotype
