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Posts for tag: crown

By Jason R. Nelsen, DDS, PLLC
August 10, 2019
Category: Dental Procedures
Tags: crown  
AStainlessSteelCrownCouldExtendtheLifeofaPrimaryMolar

One of the key elements in a child’s development is their first set of teeth. Although primary (“baby”) teeth last only a few years, they’re critically important for enabling a child to eat solid foods, speak and smile.

But they also provide one more important benefit—they hold the space in the jaw reserved for the permanent teeth developing just under the gums until they erupt. But if a child loses a primary tooth prematurely because of disease or injury, other teeth may drift into the vacant space and crowd it out for the intended permanent tooth. It may then come in misaligned or remain stuck within the gums (impaction).

To avoid this, we try to treat and preserve a diseased primary tooth if at all practical. For a primary molar, one of the large teeth in the back of the mouth, this might include capping it with a stainless steel crown.

Why a metal crown? Primary molars normally don’t fall out until around ages 10-12, so it may be years for a younger child before their permanent molars erupt. All during that time these particular teeth will encounter heavier biting forces than teeth in the front.

A steel crown is often the best solution for a molar given their longer lifespans and encountered biting forces. The crown’s metal construction can stand up to these forces while still protecting the tooth from re-infection from decay. And because molars are typically outside of the “smile zone” occupied by more visible front teeth, the crown’s metal appearance isn’t usually an aesthetic issue.

Crowning a molar usually takes one visit, a dentist typically performing the procedure with local anesthesia and possibly a mild sedative like nitrous oxide gas (“laughing gas”). After removing any decayed structure from the tooth, the dentist will then fit a pre-formed crown over the remaining structure, sized and shaped to match the original tooth as close as possible.

A stainless steel crown is a cost-effective way to added needed years to a primary molar that could otherwise be lost prematurely. Preserving it may help a child avoid bite problems and expensive future treatments.

If you would like more information on dental care for primary teeth, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Stainless Steel Crowns for Kids: A Safe and Effective Way to Restore Primary Molars.”

By Jason R. Nelsen, DDS, PLLC
September 18, 2014
Category: Dental Procedures
Tags: crown  
ConsideralltheCostFactorsWhenDecidingonaCrownRestoration

A crown restoration is a fabricated replica of a natural tooth. The mechanics and methods to prepare the tooth and attach the new crown are standard procedures in dentistry. But the crowns themselves — their individual shape, color and material from which they’re constructed — can differ greatly depending on each patient’s individual needs and desires. All these factors can have a bearing on cost — not to mention the process a dentist may employ to produce a custom crown.

Crowns are usually fashioned by a dental laboratory technician using castings of the patient’s mouth prepared by the dentist. These professionals should be considered artists as well as scientists. And, like artists with certain areas of strength and expertise, individual technicians may also develop high practical skill for a particular type of tooth replacement; it’s not uncommon for a dentist to use a different dental technician for a particular type and size of tooth to be restored. This could prove to be a factor in the final cost.

The efforts to create the best color in the crown can also affect cost. While we think of teeth as uniformly “pearly white,” there really are variations and gradations in normal tooth color (even within the same tooth). Again, a bit of artistry is important here, as the dentist communicates with the technician on not only the color but also the subtle hue gradations along the length of the crown. Your input as a patient is also valuable in determining color — you must be satisfied with the final product. Fortunately, it’s now possible to take a “test drive” of your potentially new look with a provisional crown that will allow you to see just how your permanent crown (which will be made of longer-lasting, higher quality materials) will appear.

These factors, as well as the limitations you may face by your insurance coverage, can greatly influence the final cost of treatment. As your dentist, we will consult and work with you to find the best crown restoration option that will fit both your dental needs and your financial ability.

If you would like more information on your options for crowns and other restorations, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Value of Quality Care.”

By Jason R. Nelsen, DDS, PLLC
April 09, 2014
Category: Dental Procedures
Tags: crown  
WhatsYourCrownMadeOf

Like the ones worn by kings and queens of old, dental crowns were traditionally made of that most “royal” of metals: solid gold. This style of crown is still going strong after over a hundred years, but recent advances may have stolen some of its luster. Want to learn more about the different materials from which crowns can be made? Read on!

Gold crowns have stood the test of time, and many still consider them the best. Gold is one of the earliest materials to be successfully used for making crowns, and when properly done, it also lasts the longest: over 50 years in some cases. For these and other reasons, many dentists prefer to get gold restorations for their own teeth.

But in recent years, the use of gold crowns has been in decline — especially when the crown is for one of the front teeth. Why? In one word: aesthetics! With the advent of porcelain and porcelain-fused-to-metal (PFM) crowns, many people have opted to go with these more natural-colored tooth restorations.

PFM restorations have been in use for some four decades. They combine the strength of precious metals (gold or platinum) with the appeal of a finish that appears more like a natural tooth. With proper care, a PFM restoration may have a functional life of around 20 years.

With their pearly luster and semi-translucent sheen, all-porcelain crowns have an incredibly lifelike appearance. Porcelain itself is a glass-like material, which is specially modified to add strength when it's used in dentistry. In the past, there were some problems with brittleness in all-porcelain restorations. Today, newer formulations have been designed to avoid these issues.

High-tech materials that have recently become available to dentistry include a polycrystalline ceramic substance called zirconium dioxide or “Zirconia.” It shows great promise in terms of aesthetics and strength, and is the subject of much ongoing research. One day, it may replace other materials and become the new “gold standard” of crowns.

Depending on the particular situation, one or more of these materials may be considered for your crown.

If you would like more information about crowns, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine articles “Porcelain Crowns & Veneers” and “Gold or Porcelain Crowns?”