Posts for tag: crowns
Millions of Americans rely on dental insurance to help them better afford dental care. Depending on the benefit package, an insurance policy can be useful in restoring dental health compromised by disease or injury.
But how life-like that restoration may appear is often a secondary concern with many insurance plans. For example, dental insurance will pay for a crown restoration that restores function to a tooth, but not necessarily of the highest aesthetic quality for achieving a truly life-like appearance.
To be sure, not all dental crowns are the same. Some are all metal, usually gold or silver. Some are “hybrids,” made of an interior metal shell with an outer fused porcelain shell (porcelain-fused-to-metal or PFM). In recent years all -ceramic crowns made of stronger life-like ceramics have become the most popular.
The type of crown used will depend a great deal on the type and location of the tooth. Teeth on the back of the jaw that encounter greater biting forces and are not as noticeable in the smile may do better with a metal or PFM crown. Visible side and front teeth are more likely candidates for all-ceramic. Your dentist will give you your best options as it pertains to your dental needs and appearance.
There's also a difference in crown workmanship. Dental laboratories now use milling machinery that sculpts a crown from a single block of material. Although some final handwork by skilled technicians is still necessary, milling has streamlined the process—and the cost—for producing a crown of high functioning quality.
But crowns that achieve the most natural smile appearance require more in the way of artistic craftsmanship. This in turn can increase the crown's price—beyond what many dental policies agree to cover. You may then be faced with a decision: an insurance-covered functional crown with an acceptable level of life-likeness or a more life-like crown for which you may have to pay more out-of-pocket.
Your dentist can advise you on your best options for a crown restoration, also factoring in what your insurance will cover. Ultimately, though, you'll have to weigh the kind of smile you desire with your dental situation and finances.
If you would like more information on dental crown 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 “Porcelain Dental Crowns.”
So, you're about to have a tooth capped with a crown. Do you know what you need to know before you undergo this common dental procedure?
Here's a short true or false quiz to test your knowledge of dental crowns.
All crowns are the same. False — while all crowns have the same basic design — a life-like prosthetic tooth fitted over and bonded or cemented to a natural tooth — their compositions can vary greatly. Early metal crowns consisted mainly of gold or silver and are still used today. Porcelain-fused-to-metal (PFM) crowns — a metal interior for strength overlaid by a porcelain exterior for appearance — became popular in the latter 20th Century. Although still widely used, PFMs have been largely surpassed by newer all-ceramic materials that are stronger than past versions.
Crowns can differ in their artistic quality. True — all crowns are designed to replicate a natural tooth's function — in other words, enable the tooth to effectively chew again. But a crown's appearance can be a different story, depending on how much attention to detail and artistry goes into it. The higher the individual craftsmanship, the more lifelike it will appear — and the more expensive it can be.
With digital milling equipment, dental labs are obsolete. False — although technology exists that allows dentists to produce their own crowns, the equipment is not yet in widespread use. Â The vast majority of crowns are still produced by a trained technician in a dental laboratory. And just as you base your choice of a dentist on your confidence in and respect for them, dentists look for the same thing in a dental lab — good, reliable and consistent results.
Your insurance may not cover what your dentist recommends. True — dental insurance will typically pay for a basic, functional crown. Aesthetics — how it will look — is a secondary consideration. As a result, your policy may not cover the crown your dentist recommends to function properly and look attractive. A new crown, however, is a long-term investment in both your dental function and your smile. It may be well worth supplementing out of pocket your insurance benefit to get the crown that suits you on both counts.
While dental implants have become the most popular restoration among both dentists and patients, it’s primarily a tooth replacement — either for a missing tooth or a tooth beyond repair that must be extracted. But what if your tooth is still viable beneath its unattractive exterior? From an oral health standpoint, it’s usually wise to preserve it.
Even so, you still have options for making a tooth that’s spoiling your smile more attractive. One of the most effective solutions happens to be one of the oldest in dentistry: a crown. In effect, a crown is a life-like replica made of metal or dental porcelain that’s bonded over a tooth. And with today’s advanced materials and methods a crown can not only enhance the appearance of the tooth it covers, it can also be made to blend with the color and symmetry of adjacent teeth.
Here are a few dental situations where a crown could provide both protection for a tooth and a more attractive appearance.
Chipped, Damaged or Abnormally Developed Teeth. Teeth often take the brunt of mouth injuries, resulting in chips or even fractures. Also, teeth sometimes don’t erupt fully or develop a normal shape. A crown can effectively cover these missing or abnormal parts of a tooth and restore a more natural appearance.
Following Root Canal Treatment. Trauma or deep decay can damage the interior of a tooth - the pulp and root canals - and endanger its survival. A root canal treatment cleans out and repairs these areas, filling them with a special filling to prevent further infection. A crown is usually necessary to both protect the tooth and restore its appearance.
Discoloration. There’s a difference between outward staining of the enamel, which can usually be brightened with whitening solutions, and staining deep within the tooth from various causes. While there are techniques to bleach “intrinsic” staining, a crown provides another option for covering a heavily discolored tooth for a more attractive appearance.
Excessive Wear. We all experience some teeth wearing as we age; but grinding or clenching habits can accelerate that wear and shorten teeth, resulting in a prematurely aged look. Crowns restore worn teeth to a more normal length that can take “years” off your smile.
If you would like more information on crown 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 “Crowns & Bridgework.”
In the realm of restorative dentistry, dental implants are king. A dental implant can replace a tooth with a permanent, life-like restoration with a solid reputation for durability.
Implants are also known for one other quality — variety. Not all implants are alike, and they have varied applications for use. Available in various shapes and sizes, they can be used for a single tooth or as part of a multiple tooth bridge or overdenture. And while their basic architecture is the same, you also have two options for how the permanent crown (the visible tooth portion) attaches to the implant: screwed or cemented.
A screw attachment can securely fasten a crown to an implant without the need for cement; it also allows for easy removal for repair or replacement should the crown become damaged or worn. On the other hand, it could pose a cosmetic problem — even though the access hole for the screw may be covered with a tooth-colored filling, it could still be distinguishable from the rest of the crown. There’s also a slight risk of the crown chipping around the access hole.
A crown cemented to the implant won’t have this cosmetic issue with an access hole, and will look just like a natural tooth. But unlike a screwed crown, removing a cemented crown can be more difficult. The cement may also cause gum inflammation and potential bone loss in sensitive patients.
The condition of your mouth, the type of implant you’re receiving and other circumstances will all factor into determining which method is best for you. If we’re “immediately loading” the crown (meaning we’re affixing a temporary crown to the implant immediately after placement in the jaw), then the screw method may be more advantageous. Aesthetically speaking, though, a cemented crown may be a better option in terms of final smile appearance.
But whichever method is used, you’ll still benefit from what implants do best — help you regain the function lost from a missing tooth and change your smile for the better.
If you would like more information on your options with dental implants, 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 “How Crowns Attach to Implants.”
If your tooth sustains damage that compromises its structure — typically through decay or trauma — you have several options depending on the extent of the damage: One of them is a crown. This method saves the tooth and its root and completely conceals the visible portion of the tooth, or crown, under a natural-looking cap made to mimic as closely as possible the size, shape and color of the original tooth.
Crowns also hide imperfections in the original tooth like discoloration, chipping, fractures, excessive wear (from bruxism, or tooth grinding, for example), or abnormalities in the way the tooth formed. And they’re used following root canal treatments, which treat infected pulp at the center (canal) of a tooth root by removing the pulp and replacing it with an inert, rubber-like material.
Saving the natural tooth has long been the goal of dentistry because normal micromovements of the tooth root, which is suspended in its jawbone socket by elastic ligaments, stimulate the surrounding bone to rejuvenate. Without that stimulation, the bone continues to lose old cells, but no longer replaces them. Crowns are also designed to restore tooth function.
The function and location of the damaged tooth can determine what material the crown will be made of. If the damaged tooth is clearly visible when you smile, porcelain, the most realistic-looking material, is almost always used. If the tooth receives significant bite force, a stronger material is considered — either, a gold/porcelain combination, or a high-strength ceramic. If you are restoring a second molar, an all-gold crown may be considered.
With the advent of dental implants, saving a damaged tooth is no longer the only option for preserving the health of the bone surrounding the tooth root. The implant — a tiny biocompatible, titanium screw-like artificial root — is placed in the jawbone and is then capped with a natural-looking crown of course!
If you would like more information about dental 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 article “Crowns & Bridgework.”