Not long ago the dental bridge was the alternative treatment of choice to partial dentures for restoring lost teeth. Over the last few decades, however, dental implants have nudged bridgework out of this premier spot.
That doesn’t mean, though, that bridgework has gone the way of the horse and buggy. In fact, it may still be a solid restorative alternative to partial dentures for certain people.
A traditional bridge consists of a series of porcelain crowns affixed to each other like pickets in a fence. The end crowns are fitted onto the teeth on either side of the empty tooth space; known as abutment teeth, they support the bridge. The crowns in the middle, known as pontics (from the French for “bridge”), replace the teeth that have been lost.
Bridges have been an effective and cosmetically pleasing method for tooth replacement for nearly a century. To achieve those results, though, a good portion of the abutment teeth’s structure must be removed to accommodate the crowns. This permanently alters these teeth, so they’ll require a restoration from that point on.
Dental implants, on the other hand, can be installed in the missing space without impacting any neighboring teeth. What’s more, implants provide greater support to the underlying bone than can be achieved with bridgework.
But not everyone is a viable candidate for implants, and ironically the reason most often has to do with the bone. If a patient has suffered significant bone volume loss, either because of disease or the long-term absence of the natural teeth, there may not be enough bone to properly support an implant. Unless we can adequately restore this lost bone volume through grafting, we’ll need to consider another type of restoration.
That’s where bridgework could be a viable option for patients in this or similar situations. With continuing advances in materials and new applications, the traditional bridge still remains an effective and important means to restore a smile marred by missing teeth.
If you would like more information on dental restoration options, 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.”
If you’re in the initial planning stages for a dental implant, you may already be encountering a number of options to consider. One that may come up is how the visible crown will attach to the metal implant imbedded in the bone.
Generally speaking, implants are composed of two parts: a metal post most often made of titanium placed into the bone that serves as the “root” for the new tooth; and a visible, life-like crown made of dental porcelain that attaches to an abutment on the titanium post. The crown can be attached in one of two ways: either with a small screw through the biting surface of the crown into a receiving hole in the abutment or cemented to it.
The major advantage of a screwed crown is that it allows for easy removal of the crown if needed. While the titanium post can often last a lifetime, porcelain crowns more often need repair or replacement since they receive the brunt of the biting forces in the mouth. A screw-attached crown is much easier to remove than a cemented one.
On the other hand, screwed crowns have a small access hole that must be restored with a tooth-colored filling to help the crown appear natural. This isn’t too great an issue with back teeth but does make achieving a natural appearance in the front more difficult. Cemented crowns look more like a natural tooth and are thus more flexible in achieving the desired appearance.
Besides the possibility the cement may cause gum inflammation or bone loss, the chief detraction from cemented crowns is the difficulty in removing them. Crowns are often damaged in this process so it’s highly likely it will have to be replaced rather than repaired. It’s possible to use weaker cement, but this raises the risk of the crown coming loose at some point from the abutment.
As we plan for your implant, we’ll discuss which type of attachment will work best for you, depending on the tooth to be replaced and other conditions with your oral health. The end result, though, should be the same — a new, natural-looking tooth that serves you well for many years to come.
If you would like more information on 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.”
Fluoride is an important weapon in the fight against tooth decay. Fluoride consumption and other applications are especially beneficial during children's dental development for building strong teeth long-term.
But the truism "too much of a good thing" could aptly apply to fluoride. If a child consumes too much fluoride over an extended period of time, it could cause a condition called enamel fluorosis in which the enamel surface develops mottled or streaked staining. It's not harmful to the tooth's health, but it can greatly diminish a person's smile appearance.
To avoid fluorosis, it's important with the help of your dentist to know and regulate as much as possible the amount of fluoride your child receives. Here are 3 fluoride sources you should manage.
Toothpaste. Many manufacturers add fluoride to their toothpaste formula, usually an important way to receive this tooth-strengthening chemical. But younger children tend to swallow more toothpaste than older children or adults. Because the chemical builds up in the body over time, swallowing toothpaste every day could potentially elevate your child's fluoride levels. To avoid this, just use a "smear" of toothpaste on the brush for children under age 2, and a pea-sized amount for older children.
Your water system. About three-quarters of all public water utilities add fluoride to their water as an added measure for tooth decay prevention. The amount can vary from system to system, although the maximum amount recommended by the U.S. Government is 0.70 parts per million (PPM). You can ask your local water system how much fluoride, if any, is present or they add to your drinking water.
Bottled water. Any type of bottled beverage (water, juices, sodas, etc.) could contain various levels of fluoride. Unfortunately there are no labeling requirements regarding its presence, so the most prudent course is to carefully manage the beverages your child drinks, or stay with bottled water marked "de-ionized," "purified," "demineralized" or "distilled," which typically have lower fluoride levels. For babies feeding on milk, you can use the aforementioned bottled waters to mix powder, use ready-to-feed formula (also low in fluoride) or breast-feed.
If you would like more information on fluoride and your baby, 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 “Tooth Development and Infant Formula.”
Is a chipped tooth big news? It is if you’re Justin Bieber. When the pop singer recently posted a picture from the dental office to his instagram account, it got over 2.6 million “likes.” The snapshot shows him reclining in the chair, making peace signs with his hands as he opens wide; meanwhile, his dentist is busy working on his smile. The caption reads: “I chipped my tooth.”
Bieber may have a few more social media followers than the average person, but his dental problem is not unique. Sports injuries, mishaps at home, playground accidents and auto collisions are among the more common causes of dental trauma.
Some dental problems need to be treated as soon as possible, while others can wait a few days. Do you know which is which? Here are some basic guidelines:
A tooth that’s knocked out needs attention right away. First, try and locate the missing tooth and gently clean it with water — but avoid holding the tooth’s roots. Next, grasp the crown of the tooth and place it back in the socket facing the correct way. If that isn’t possible, place it between the cheek and gum, in a plastic bag with the patient’s saliva or a special tooth preservative, or in a glass of cold milk. Then rush to the dental office or emergency room right away. For the best chance of saving the tooth, it should be treated within five minutes.
If a tooth is loosened or displaced (pushed sideways, deeper into or out of its socket), it’s best to seek dental treatment within 6 hours. A complete examination will be needed to find out exactly what’s wrong and how best to treat it. Loosened or displaced teeth may be splinted to give them stability while they heal. In some situations, a root canal may be necessary to save the tooth.
Broken or fractured (cracked) teeth should receive treatment within 12 hours. If the injury extends into the tooth’s inner pulp tissue, root canal treatment will be needed. Depending on the severity of the injury, the tooth may need a crown (cap) to restore its function and appearance. If pieces of the tooth have been recovered, bring them with you to the office.
Chipped teeth are among the most common dental injuries, and can generally be restored successfully. Minor chips or rough edges can be polished off with a dental instrument. Teeth with slightly larger chips can often be restored via cosmetic bonding with tooth-colored resins. When more of the tooth structure is missing, the best solution may be porcelain veneers or crowns. These procedures can generally be accomplished at a scheduled office visit. However, if the tooth is painful, sensitive to heat or cold or producing other symptoms, don’t wait for an appointment — seek help right away.
Justin Bieber earned lots of “likes” by sharing a picture from the dental office. But maybe the take-home from his post is this: If you have a dental injury, be sure to get treatment when it’s needed. The ability to restore a damaged smile is one of the best things about modern dentistry.
If you have questions about dental injury, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Repairing Chipped Teeth” and “Porcelain Crowns & Veneers.”
Since their introduction over three decades ago, dental implants have evolved into dentistry’s premier tooth replacement choice. While their primary purpose is to replace missing teeth and rejuvenate a patient’s smile, they’re also regarded for another important benefit: they can slow or stop bone loss accelerated by the loss of teeth.
Like all living tissue, bone has a life cycle. Older bone dissolves and is absorbed by the body, a process called resorption. New bone forms and grows to replace the resorbed bone in response to stimuli occurring within the body. In the jaw, this stimulation comes from the forces the teeth receive when we bite or chew.
When a tooth is lost, however, it no longer transmits these force stimuli to the adjacent bone. This results over time in less new growth to replace resorbed bone, and the overall bone mass shrinks. In fact, about a quarter of the normal bone width will diminish in the first year alone after tooth loss. Other serious problems follow, like gum recession or chewing and speaking difficulties. A person’s appearance may also suffer, because as resorption continues unchecked, the underlying foundational bone will continue to shrink. As more teeth are lost, a decrease in the distance between the nose and chin may result causing the lower third of the face to become smaller in size.
Dental implants can interrupt this process by encouraging bone growth around the implant. Implants are made of “osseophilic” titanium, meaning the metal has a natural affinity with bone. After implantation, bone cells will begin to grow and attach to the titanium post. The enhanced growth stabilizes bone loss by providing stimulation to the bone as teeth once did, thereby maintaining bone levels and minimizing potential effects on the patient’s appearance.
Ironically, too much bone loss could make the installation of implants more difficult, since they require a minimum level of bone mass for anchorage. Receiving an implant as soon as is practical once a tooth is lost will minimize the chances of that occurring — and a better chance of improving bone health overall.
If you would like more information on how dental implants improve bone health, 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 “The Hidden Consequences of Losing Teeth.”
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