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Dental Implants: Classification and Materials

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Dental Implants: Classification and Materials

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Questions and Answers

What is the primary function of dental implants?

To restore the natural bone structure of the jaw

To serve as replacements for the root of a missing natural tooth (correct)

To support the facial structure

To enhance the aesthetic appeal of the facial features

What is osseointegration, as defined on the light microscopic level?

A surgical procedure for implant placement

A direct structural and functional connection between living bone and the surface of an implant (correct)

A chemical bond between the implant and surrounding bone

A mechanical fit between the implant and surrounding bone

What are the three primary groups of dental implant materials?

Hydroxyapatite, Glass Ceramic, and Bioglass

Titanium, Stainless Steel, and Alumina

Biotolerant, Bioinert, and Bioactive

Metals, Polymers, and Ceramics (correct)

What type of biomaterial is characterized by minimal interaction with surrounding tissue?

Bioinert Signup and view all the answers

What is an example of a bioactive material?

Synthetic Hydroxyapatite Signup and view all the answers

What is the term for the process by which bone grows in close apposition to the implant surface?

Contact Osteogenesis Signup and view all the answers

What is the result of ion exchange between bioactive materials and host tissue?

Formation of a chemical bond along the interface Signup and view all the answers

What is the characteristic of biotolerant materials?

They are surrounded by a fibrous layer Signup and view all the answers

What is the most common type of dental implant used today?

Endosseous implant Signup and view all the answers

What is the characteristic of transosteal implants?

They penetrate the two cortical plates Signup and view all the answers

What are dental implants classified into?

Metals, Ceramics, and Polymers Signup and view all the answers

What is the characteristic of titanium?

It is 6 times stronger than compact bone Signup and view all the answers

What is the characteristic of titanium compared to compact bone?

Its modulus of elasticity is 5 times greater Signup and view all the answers

What is the purpose of molybdenum in cobalt-chromium-molybdenum alloys?

To provide strength and stabilize Signup and view all the answers

Which of the following ceramic materials is not bioactive?

Aluminum oxide Signup and view all the answers

What was the outcome of the early work with methyl methacrylate resin implants?

Mostly failures Signup and view all the answers

What is a disadvantage of polymers as biomaterials?

Inferior mechanical properties Signup and view all the answers

What is the purpose of chromium in cobalt-chromium-molybdenum alloys?

To provide corrosion resistance Signup and view all the answers