Dental crowns are an important restoration tool dentists use for both cosmetic and restorative procedures. We, at Zero Cavity, have compiled the most frequently asked questions and here are answers to the questions that you might also have regarding the dental crown.
What is a dental crown?
A dental crown is a tooth-shaped cap that is placed over a tooth-covering the tooth to restore its shape and size, strength and to improve its appearance.
Why do I need a dental crown?
If you have a cracked, broken, uneven or weakened tooth due to extreme bacteria or decay, then a dental crown will help. Dental crowns will help restore the actual tooth, allowing you to live life normally and pain-free. They also serve as a preventative method, safeguarding you from more serious problems in the future.
What are the types of crowns available?
Permanent crowns can be made from all metal, porcelain-fused-to-metal, all resin, or all ceramic.
- Metals used in crowns include gold alloy, other alloys (for example, palladium) or a base-metal alloy (for example, nickel or chromium). Compared with other crown types, less tooth structure needs to be removed with metal crowns, and tooth wear to opposing teeth is kept to a minimum. Metal crowns withstand biting and chewing forces well and probably last the longest in terms of wear down. Also, metal crowns rarely chip or break. The metallic colour is the main drawback. Metal crowns are a good choice for out-of-sight molars.
- Porcelain-fused-to-metal dental crowns can be colour matched to your adjacent teeth (unlike the metallic crowns). However, more wearing to the opposing teeth occurs with this crown type compared with metal or resin crowns. The crown's porcelain portion can also chip or break off. Next to all-ceramic crowns, porcelain-fused-to-metal crowns look most like normal teeth. However, sometimes the metal underlying the crown's porcelain can show through as a dark line, especially at the gum line and even more so if your gums recede. These crowns can be a good choice for front or back teeth.
- All-resin dental crowns are less expensive than other crown types. However, they wear down over time and are more prone to fractures than porcelain-fused-to-metal crowns.
- All-ceramic or all-porcelain dental crowns provide the best natural colour match than any other crown type and may be more suitable for people with metal allergies. However, they are not as strong as porcelain-fused-to-metal crowns and they wear down opposing teeth a little more than metal or resin crowns. All-ceramic crowns are a good choice for front teeth.
- Temporary versus permanent Temporary crowns can be made in your dentist's office whereas permanent crowns are made in a dental laboratory. Temporary crowns are made of acrylic or stainless steel and can be used as a temporary restoration until a permanent crown is constructed by the dental laboratory.
What are on lays and 3/4 crowns?
Many types of crowns can be used on your teeth. Onlays and 3/4 crowns are types of dental crowns that don’t cover as much of your underlying tooth as traditional dental crowns. A traditional crown will cover your entire tooth. Onlays and 3/4 crowns may be appropriate when you still have a solid tooth structure. It’s considered a more conservative approach compared to full coverage of your crown. In this procedure, your dentist removes the affected area and performs a reshaping of the tooth to receive the crown.
Is it painful to get a crown?
A crown will be fit over your existing tooth or implant, but to do that, the dentist may need to modify the existing tooth. During the process, you would be numbed and shouldn’t experience pain, though you may feel a bit sore post-procedure.
How should I care for my dental crown?
You maintain a crown just as you would your normal teeth. As long as you follow a daily dental hygiene schedule and participate in regular dental cleanings, you should be all set.