When it comes to dental restorations, understanding the difference between porcelain and ceramic materials is crucial.
5 Key Points to Consider
1. Composition and Properties
Porcelain and ceramic restorations differ mainly in their composition and properties.
2. Porcelain Crowns
Porcelain crowns are a type of ceramic crown. They are made from dental porcelain, which is a type of unglazed ceramic.
Porcelain crowns are often used for making certain types of crowns and veneers because they help maintain bone density.
However, they are softer than normal dentin and therefore not as strong.
Porcelain crowns need to be supported by the natural tooth structure or a bonding agent.
3. Ceramic Crowns
Ceramic crowns can refer to different types of dental restorations.
Ceramic crowns are generally more robust than porcelain crowns, but they still do not match the robustness of metal crowns.
Ceramic crowns can be made of metal ceramic alloys or zirconia.
4. Metal Ceramic Crowns
Metal ceramic crowns are made of porcelain fused onto a metal base.
The major advantage of using metal ceramic in dental restoration is its permanent aesthetic quality.
Metal ceramic provides a solid connection between the masking ceramic and the metal, resulting in minimal changes in color.
5. Zirconia Crowns
Zirconia crowns are made up of tiny white crystals called zirconia crystals, which contain zirconium dioxide.
Zirconia is lighter and stronger than metal ceramic, making zirconia crowns more durable.
6. Porcelain Ovens
When choosing a porcelain oven for dental restoration, there are two main types to consider: direct-fired and indirect-fired ovens.
Direct-fired ovens use ceramic plates or shells to directly heat the crown or veneer.
Indirect-fired systems use a quartz tube or light bulb to heat the ceramic shell, which is then placed over the tooth.
7. Furnace Calibration
It is important to note that the proper calibration and use of the porcelain furnace is crucial in achieving optimal aesthetic outcomes and vitality in ceramic restorations.
Many technical issues with porcelain products can be traced back to the operation of the porcelain furnace.
Furnace calibration plays a significant role in processing raw dental porcelain to achieve the desired features of the restoration, such as surface texture, translucency, value, hue, and chroma.
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