Dental Implants Question And Answers

Dental Implants Short Essays

Question 1. Dental implant materials
Answer:

Dental implant materials

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Dental Implants Short Question And Answers

Question 1. Passivation.
Answer:

Passivation

1. Certain metals readily form a strong adherent oxide film on their surface, which protects them from corrosion. Such a metal is said to be passive.
2. Since this oxide film is passive to oxidation, its formation is called passivation. E.g. Chromium, titanium & aluminium.
3. If more than 12% chromium is added to iron or cobalt, we get stainless steel or cobalt-chromium alloys, which are lightly corrosion-resistant and suitable for dental use.