Dental Crowns – Protection to Teeth and Prevention of Decay
Dental crown is like a boon for those who suffer from tooth problems. It provides protection to the tooth from accumulating food particles and germs collecting thereby, and restores its shape, size, strength and appearance. The dental crown when cemented onto the tooth encases the entire portion of the tooth showing at and above the gum line.
Need of Dental Crown
Following are situations in which you may need a dental crown:
- To protect a weakened tooth (e.g. a decayed tooth) from breaking or for holding the cracked parts of a tooth together
- To restore a broken or severely worn down tooth
- To provide cover and support to a tooth with a bulky filling when there is no major portion of tooth left
- To keep a dental bridge in place
- To hide a discolored or misshaped tooth
- To provide cover to a dental implant
- For cosmetic modification
Dental crown can be used in children too, for the following purposes:
- To save a tooth which is so damaged that it cannot support a filling
- To protect the teeth from decay in children at high risk, particularly when a child has problem in keeping up with oral hygiene
- Reduce the frequency of general anesthesia and sedation for children not capable because of age, medical history or behavior to fully cooperate with the procedures of proper dental care
In these cases, a pediatric dentist mostly recommends a stainless steel crown.
Types of Crowns
Permanent dental crowns are made from stainless steel, porcelain-fused-with-metal, entirely metal (like gold or some other alloy), entirely resin or entirely ceramic.
Stainless Steel Crowns – These are prefabricated crowns which are used primarily as a temporary solution. It protects the filling or tooth while a permanent crown is being made from another material. It is common to use stainless steel crowns in children to fit on a primary tooth which has been made to fit it. The crown prevents further decay by covering the tooth entirely. When the primary tooth makes room for the permanent tooth and comes out, the crown too comes out naturally with it. Stainless steel crowns don’t require frequent visits to the dentist to put in place and so are commonly used for children’s teeth.
Metal Crowns – Metals that are used to make metal crowns are gold alloy, a base-metal alloy (like nickel or chromium) or other alloys (like palladium). With metal crowns less tooth structure has to be removed compared to other crown types, and tooth wear of opposing teeth is minimized. These crowns stand biting and chewing force well and are perhaps the longest lasting crowns in terms of wearing down. Also, they hardly break or chip. Only downside is their metallic color and so, they are perfect for out-of-sight molars.
Porcelain-Fused-with-Metal Crowns – These score over metal crowns in providing a matching color with the neighboring teeth. They are at second place in providing natural appearance to the teeth, after entirely ceramic crowns. However, it is observed that opposing teeth are more worn out with them as compared to metal or resin. The porcelain part of the crown itself too can break or chip. Also the metal under the porcelain can show as a dark line, particularly at the gum line and even more if the gum recedes. They can be a nice option for front or back teeth.
Entirely Resin Crowns – These are less expensive than other types of crowns. But they wear down fast and are more susceptible to fractures than porcelain-fused-with-metal crowns.
Entirely Ceramic or Porcelain – They provide the best natural color to the teeth than any other crowns and also suit those having metal allergies. However, they are not strong compared to porcelain-and-metal crowns and also wear down opposing teeth faster than resin or metal crowns. They are suitable for front teeth.
Temporary Crowns – Temporary crowns are made into the dentist’s office and are placed until a permanent crown is made. They are made of stainless steel or acrylic.
Dental crowns are certainly useful for protecting the teeth and preventing further decay. Get more interesting information about crowns and other dental treatments at dental crowns San Francisco, who provide individualized dental treatment for a guaranteed effective care.