Metals are pioneering materials applied in dentistry. Metals are used to manufacture a variety of restorations such as dental filling, dental implant, crown, and bridge. Most metals in the dental lab are biocompatible, not harmful to the wearer’s health. However, aesthetics is the weak point of metals. This post will mention 7 common metals in the dental lab.

1. Silver Amalgam

Silver Amalgam is a mixture of copper, silver, tin, zinc, and inorganic mercury. Dentists use this mixture in traditional dental fillings. Although Silver Amalgam contains mercury, which considers as a toxic substance but up to now, there has been no report in dentistry that silver amalgam harms users’ health.

 Aesthetics is a limitation of Silver Amalgam due to creating a different color filling area with the remaining teeth. In modern dentistry, composite is a new material that can please aesthetic elements. However, silver amalgam is still preferred because of its low cost, which is suitable for patients with a limited budget.

metals in dentistry
Silver Amalgam vs Composite

2. Stainless steel

Stainless steel alloy is quite friendly, does not affect health, is often used to produce temporary teeth. Because they are used as temporary teeth, they are produced in large quantities and are limited in shape.

Stainless steel crown

3. Nickel Chromium

With strong, durable, and high abrasion resistance, Nickel Chromium is a base metal alloy used to manufacture dentures in dentistry. Some studies have shown that cheap Nickel Chromium is associated with sensitization and possible toxicity if absorbed in large amounts. Therefore, be careful when using cheap Nickel Chromium dental products.

4. Cobalt-Chromium

Like Nickel Chromium, Cobalt chromium is also used in dentistry because of its strong, durable, and abrasion-resistant properties. A preeminent property of Cobalt-Chromium is its ability to combine well with porcelain, making it a widely used choice for the production of PFM crowns. Cobalt-Chromium is the most commonly used base metal alloy in dentistry because of its low cost.

There are over 30 types of cobalt-chromium alloys, so more research on absolute biosafety is still needed. However, up to date, there have been no serious reports of the use of cobalt-chromium alloys in dentistry. Crowns made of cobalt-chromium do not fit as well as crowns made of precious metals.

Cobalt-Chromium bridge
Cobalt-Chromium bridge

5. Titanium

Among metals in the dental lab, Titanium is considered one of the materials with high biocompatibility, strong, durable, and high abrasion resistance. Thus, titanium can adapt well to the body environment. In addition, titanium has a good chemical bonding process with bone tissue, so it is widely used in dental implants.

Research indicates that only a small percentage of the population is sensitive to titanium. In this case, ceramic implants may be indicated as an alternative to titanium implants.

Titanium implant vs gold implant

6. Nickel Titanium

Nickel-titanium is one of the metals in the dental lab that boasts the unique physical properties of super-elasticity, which means that the alloy will return to its original shape when the applied force disappears. This strength grade is ideal for dental applications such as orthodontic wiring.

Nickel-titanium is also commonly used to manufacture endodontic drills for root canal procedures. According to research, this metal alloy also has biocompatibility properties, not harmful to the body.

7. Gold Alloy

Gold is considered the most superior material of all metals used in dentistry. Gold metal is strength, durability, abrasion resistance, biocompatibility, hypoallergenic compared to other metals. In particular, teeth made from gold have moderate softness, not causing damage to the opposing teeth.

Metals in the dental lab are extremely rich and diverse for choosing. To choose the right metal crown, you need advice from your dentist and detailed information about the type of metal used to make the crown.

At Xdent, we choose NP Special (Ni-Co) from the Argen brand to manufacture crowns and bridges, which allows final products to get extremely fine structures. If you are looking for a lab to outsource metal crowns, Xdent will be a good choice for you.


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Author: Xdent team

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