Types of Dental Crowns
A dental crown (cap) is a restoration that covers a tooth, restoring it to its normal size and shape, while strengthening and improving its appearance. A crown is necessary when a tooth is broken to the point where a filling will not be effective. A dental crown can be used for various reasons, including covering discolored or misshapen teeth, or restoring a broken tooth. It may also be used in conjunction with bridges and dental implants. A porcelain crown is made entirely of porcelain.
Benefits Of Porcelain Crowns
A major advantage of porcelain crowns is that they are created to look exactly like, or even better than, the teeth they are replacing. They are available in a wide variety of shades in order to perfectly match them to existing teeth. Extremely natural-looking, it is rarely noticeable that they have been used. Because they are the most cosmetically attractive type of replacement, they are commonly used for the front teeth.
Porcelain crowns are also a good choice for anyone with a metal allergy. Because they contain no metal at all, the wearer should experience no adverse reactions.
Care Of Porcelain Crowns
Porcelain crowns are generally durable and long-lasting, and require no more care than natural teeth. In some cases, a patient who grinds her or his teeth during sleep may require a custom mouth guard to prevent excess pressure from causing a crown to crack.
Metal crowns are made entirely of a metal alloy that may include gold, platinum, palladium, or other elements. Compared with other kinds of crowns, metal crowns preserve more of the tooth structure. They withstand biting and chewing forces well and rarely chip or break. The biggest drawback of metal crowns is the metallic color.
Porcelain-Fused-to-Metal or PFM Crowns
PFM crowns can be color-matched to the teeth. Second only to all-ceramic crowns in appearance, porcelain-fused-to-metal crowns look like normal teeth. In some cases, the metal underlying the crown’s porcelain can create a dark line. PFM crowns tend to wear down opposing teeth more than metal crowns. The crown’s porcelain portion can also chip or break.
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