- Topic
- done by Ala'a
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DEF.
- The implants themselves are tiny posts, which are inserted into the jawbone where teeth are missing. These Dental Implants anchors act as tooth root substitutes.
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indication ?
- missing single tooth
- partial edentulous pt.
- Edentulous patient
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Risk factor & Contraindication
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Patient factors
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Medical status
- immune deficiency,
- bleeding tendency
- Diabetes
- Addictive illness
- psycho problem .
- Cigarette smoking
- Age
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Iatrogenic factors
- Overheating of bone during surgery
- Implant orientation
- Lack of communication
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local Factor
- Bone quality and quantity
- Irradiated bone
- inflammation
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TYPE
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According to Material
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titanium
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Advantage
- develops a thin film on its surface that protects it from corrosion
- resistant to acids , salt solutions and oxygen
- nonmagnetic
- strong for its weight
- osseointegration
- When implants are placed in bone, the bone grows around the implant.
- Other
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According to Shape
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subperiosteal
- consist of metal framework that attaches on top of jaw bone but underneath gum tissue .
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Transosseous Implant
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Indication :
- very little bone in the lower jaw.
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rarely used today because ?
- placing them requires extensive surgery, general anesthesia and a hospital stay.
- their use is limited to the lower jaw
- today prefer to use bone grafts
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endosseous implants
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Type
- Blade-Form Implant
- Blade-form implants are flat rectangles of metal with one or two metal prongs on one long side. A blade implant is placed in the jaw so that the prong(s) stick out into the mouth
- Root-Form Implant
- meaning they are placed in the bone. They look like screws, thick nails or cones, and come in various widths and lengths
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PARTS
- Implant Post
- Cover scrow
- healing cap
- Abutment screw
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How Much Space Is require For placement of one or more implant ?
- Requirement.xmind
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PROCEDURE
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surgery part
- surgical stage.ppt
- Healing stage
- fixed part