Basics of Osseointegration and Prosthetic Options in Prosthodontics

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Questions and Answers

What did Per-Ingvar Branemark call the process of direct contact between bone and metallic implants?

  • Osseointegration (correct)
  • Implant Fusion
  • Bone Grafting
  • Connective Tissue Integration

In the context of osseointegration, what does 'direct contact' refer to?

  • Connection between bone and connective tissue
  • Connection between bone and metallic implants without interposed tissues (correct)
  • Connection between bone and surrounding tissues
  • Anchorage mechanism for nonvital components

What was the significance of Branemark's findings about direct contact between bone and metallic implants?

  • Enhanced implant fusion
  • Developed better prosthetic options
  • Revolutionized dentistry (correct)
  • Improved bone grafting procedures

What metal is used to manufacture the screw in dental implants?

<p>Titanium (B)</p> Signup and view all the answers

What is the surface of the screw called when it is left in its machined state?

<p>Machined surface (C)</p> Signup and view all the answers

Who was the first person to receive a dental implant and contribute to the invention of modern day implantology?

<p>Gosta Larsson (A)</p> Signup and view all the answers

Why is titanium considered unique for dental implants?

<p>It is resistant to corrosion and release of metallic ions. (A)</p> Signup and view all the answers

What happens when cobalt-chrome alloys are subject to corrosion?

<p>Release of metallic ions into adjacent tissues. (B)</p> Signup and view all the answers

Which element is needed to be extracted from mineral ores such as ruFle and ilmenite?

<p>Titanium (A)</p> Signup and view all the answers

What did Gosta Larsson's initial set of implants serve as for oral prostheses?

<p>Foundation (C)</p> Signup and view all the answers

What response is caused by the presence of metallic ions from cobalt-chrome alloys?

<p>Acute and chronic inflammatory response. (C)</p> Signup and view all the answers

Flashcards

Osseointegration

Direct connection between bone and metallic implants without intervening tissues.

What did Branemark call direct contact between bone and implants?

The process discovered by Per-Ingvar Branemark, where bone and metallic implants bond directly.

Why is osseointegration significant for dentistry?

It revolutionized dentistry by enabling the stable replacement of missing teeth with implants.

What metal is used for dental implants?

A metal commonly used for dental implants due to its corrosion resistance and biocompatibility.

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What is the surface of a screw in its machined form?

The surface of a screw in its original, uncoated state.

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Who was the first to receive dental implants?

The first person to receive dental implants, contributing to the advancements in modern implantology.

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Why is titanium unique for implants?

It is resistant to corrosion, preventing harmful metal ions from being released into surrounding tissues.

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What happens with cobalt-chrome alloys when they corrode?

They can release metallic ions when corroded, causing inflammation in surrounding tissues.

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Where is titanium extracted from?

Titanium is extracted from mineral ores like rutile and ilmenite.

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What did Gosta Larsson's implants provide for prostheses?

Gosta Larsson's initial set of implants served as a stable foundation for oral prostheses.

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What response do metallic ions from cobalt-chrome cause?

The release of metallic ions from cobalt-chrome alloys can provoke an acute or chronic inflammatory response.

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Study Notes

Osseointegration

  • Per-Ingvar Branemark called the process of direct contact between bone and metallic implants "osseointegration".
  • In the context of osseointegration, "direct contact" refers to the formation of a strong bond between the bone and the implant surface, without the presence of intervening soft tissue.

Dental Implants

  • Titanium is used to manufacture the screw in dental implants due to its unique properties.
  • The surface of the screw is called "machined" when it is left in its original state.
  • Titanium is considered unique for dental implants because of its biocompatibility, corrosion resistance, and strength.

History of Implantology

  • The first person to receive a dental implant was Gösta Larsson, who contributed to the invention of modern day implantology.
  • Gosta Larsson's initial set of implants served as a prototype for oral prostheses.

Metallic Implants

  • Cobalt-chrome alloys are subject to corrosion, which can lead to the release of metallic ions.
  • The presence of metallic ions from cobalt-chrome alloys can cause an inflammatory response.

Titanium Production

  • Titanium is extracted from mineral ores such as rutile and ilmenite.

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