Wednesday 29 August 2012

What is the fixed denture material?


Fixed partial dentures missing teeth gap adjacent natural teeth as support on both sides or one side of denture cement retainers on natural teeth, patients can not own pick to wear. Fixed partial denture materials, the most important of several materials are as follows:

1. Cobalt chromium alloy: corrosion resistance, biocompatibility, and the price are higher than the nickel-chromium alloy.

2. All-ceramic materials: biocompatibility best gum irritation, allergic reactions. Repair is a metal-free, without any impact on the results of magnetic resonance imaging and other test. Inadequacies, due to the different intensity, some of the material does not apply to all tooth position, some special processing techniques result in relatively high prices.

3. Titanium alloy: contain trace amounts of titanium, is still a nickel-based alloy. High strength, corrosion resistance and dental supplies oxidation resistance of clinical basic requirements.

4. Precious metal alloys: excellent corrosion resistance, good oxidation resistance, adaptation and biocompatible is ideal metal crowns restorative materials. The price is relatively high.

5. Nickel-chromium alloy: an alloy commonly used in domestic, has good strength and porcelain bond force, and stable long-term effect. The drawback is that there will be metal composition of free long-term use of the active metal and chemical properties in the mouth, because gum black lines, and therefore for anterior teeth will affect the aesthetic effect. In addition, some people are allergic to There are several types of porcelain teeth nickel metal known nickel allergy caution.

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