Posts for: December, 2018
In real life he was a hard-charging basketball player through high school and college. In TV and the movies, he has gone head-to-head with serial killers, assorted bad guys… even mysterious paranormal forces. So would you believe that David Duchovny, who played Agent Fox Mulder in The X-Files and starred in countless other large and small-screen productions, lost his front teeth… in an elevator accident?
“I was running for the elevator at my high school when the door shut on my arm,” he explained. “The next thing I knew, I was waking up in the hospital. I had fainted, fallen on my face, and knocked out my two front teeth.” Looking at Duchovny now, you’d never know his front teeth weren’t natural. But that’s not “movie magic” — it’s the art and science of modern dentistry.
How do dentists go about replacing lost teeth with natural-looking prosthetics? Today, there are two widely used tooth replacement procedures: dental implants and bridgework. When a natural tooth can’t be saved — due to advanced decay, periodontal disease, or an accident like Duchovny’s — these methods offer good looking, fully functional replacements. So what’s the difference between the two? Essentially, it’s a matter of how the replacement teeth are supported.
With state-of-the-art dental implants, support for the replacement tooth (or teeth) comes from small titanium inserts, which are implanted directly into the bone of the jaw. In time these become fused with the bone itself, providing a solid anchorage. What’s more, they actually help prevent the bone loss that naturally occurs after tooth loss. The crowns — lifelike replacements for the visible part of the tooth — are securely attached to the implants via special connectors called abutments.
In traditional bridgework, the existing natural teeth on either side of a gap are used to support the replacement crowns that “bridge” the gap. Here’s how it works: A one-piece unit is custom-fabricated, consisting of prosthetic crowns to replace missing teeth, plus caps to cover the adjacent (abutment) teeth on each side. Those abutment teeth must be shaped so the caps can fit over them; this is done by carefully removing some of the outer tooth material. Then the whole bridge unit is securely cemented in place.
While both systems have been used successfully for decades, bridgework is now being gradually supplanted by implants. That’s because dental implants don’t have any negative impact on nearby healthy teeth, while bridgework requires that abutment teeth be shaped for crowns, and puts additional stresses on them. Dental implants also generally last far longer than bridges — the rest of your life, if given proper care. However, they are initially more expensive (though they may prove more economical in the long run), and not everyone is a candidate for the minor surgery they require.
Which method is best for you? Don’t try using paranormal powers to find out: Come in and talk to us. If you would like more information about tooth replacement, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Crowns & Bridgework,” and “Dental Implants.”
Modern dental care wouldn’t be the same without x-rays. Since dentists began capturing x-ray images a century ago to detect beginning tooth decay, billions of teeth have been preserved.
“Catching it early” is the key to staying ahead of this aggressive bacterial infection. Once it breaks through the protective defenses of tooth enamel, it can advance toward the center of the tooth, the pulp, damaging dentin as it goes. While we can effectively stop it at this point with a root canal treatment, it’s better for the tooth’s long-term health to detect and treat any decay early on with a less-invasive filling or other treatment method.
X-ray imaging helps make that possible, revealing decay much easier than we can see with the unaided eye. And while we can often detect decay in front teeth by visual examination or by using very bright lighting, that’s not as easy with the less accessible back teeth. For those teeth we use a special x-ray technique known as the bitewing.
The name comes from the small frame used to hold the film. It’s held in place in the mouth by the patient biting down on small tabs or “wings” extending from the frame. The x-ray beam travels through the outer cheek and teeth to the film being held in the frame on the back side of the teeth. When exposed, we’ll be able to view the interior of these back teeth: a set of four bitewings gives us a full view of all the upper and lower molars and pre-molars on each side of the jaws.
Like other forms of radiation energy, too much or too frequent exposures to x-rays can lead to serious health problems. But bitewing x-rays carry little risk to health. That’s because they fit well with the ALARA principle, meaning “As Low As Reasonably Achievable,” which helps guide our use of x-rays. Patients receive a fraction of the radiation exposure from routine bitewing x-rays than they receive annually from the natural environment.
Without bitewing x-rays and other diagnostic methods, the chances are high that tooth decay or other dental problems can go undetected in their early stages. Using this important tool can help us head off major damage before it occurs.
If you would like more information on the role of x-rays in dental care, 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 “Bitewing X-Rays: A Routine Part of Your Dental Exam.”
For chipped, stained, or slightly crooked teeth, dental veneers might be the ideal solution. These thin layers of porcelain bonded directly over the teeth with the perfect blend of color, sizes and shapes, can transform a person’s smile for a relatively modest cost.
But if the teeth belong to a teenager, veneers might not be appropriate. This is because in most cases, we’ll need to remove some of the tooth enamel so that the applied veneers won’t look unnaturally bulky. This alteration is permanent, so the teeth will require some form of restoration from then on.
While not usually a major issue with fully matured adult teeth, it could be with the developing teeth of pre-teens and teens. During childhood and adolescence the tooth’s inner pulp plays an important role in dentin production, and so the pulp chamber is relatively large compared to an adult tooth. This larger size places the pulp closer to the enamel surface than with an adult tooth.
Because of its proximity to the enamel, there’s a greater chance veneer alterations could damage a teenager’s tooth pulp and its nerve bundles. If that happens, we may need to perform a root canal treatment to save the tooth—also not an optimal situation for a developing tooth.
That’s why we need to take into consideration a patient’s age and stage of dental development first, including x-raying the affected teeth to measure the depth of the tooth pulp. If we deem it too risky at the moment, there are other ways to improve dental appearance at least temporarily. This includes whitening externally stained teeth with a bleaching agent, or applying tooth-colored composite resin material to chipped areas. We can also apply a composite material veneer that, although not as durable as traditional porcelain, doesn’t require much if any tooth alteration.
To know your options, have your teenager undergo a thorough dental examination. Your dentist will then be able to discuss with you whether veneers can be safely attempted. And be sure the dentist who may perform the work has experience performing cosmetic procedures on teenagers.
If you would like more information on restoration choices for teenagers, 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 “Veneers for Teenagers.”