Posts for: March, 2019
Although highly preventable, total tooth loss continues to affect millions of people worldwide, harming their nutrition, health and social standing. In the United States alone, a quarter of adults between 65 and 74 suffer from total tooth loss.
Fortunately, there are a number of ways to restore lost teeth, including fixed bridgework and dental implants. These fixed solutions, though, can put a strain on finances; implants in particular require a minimum amount of bone in the jaw, which may not be present in people with extensive tooth loss. In these cases, removable dentures, time-tested and affordable, are a viable option.
While the technology is simple, adaptable and effective, creating custom-fitted dentures is a painstaking process. It begins with an impression mold of the patient’s jaw ridges that once supported the natural teeth. A dental lab technician uses the impression to fashion a life-like plastic resin base, making sure the final dimensions won’t interfere with the patient’s cheeks, lips, and jaw movement.
The prosthetic (artificial) teeth, each chosen to match the patient’s facial structure and past appearance, are then carefully positioned on the base. Teeth positioning on each denture arch must also balance with the opposing arch to assure a good bite. Once delivered, the dentist may make other adjustments to assure they fit comfortably within the patient’s mouth.
Dentures also require regular care and maintenance to ensure a continuing good fit and an overall healthy mouth. Your gums will still be susceptible to disease, so cleaning and maintaining both your dentures and the mouth’s soft tissues is an ongoing necessity.
The lack of natural teeth can also lead to more bone loss, which can cause the dentures to lose their accurate fit and make them uncomfortable to wear. To remedy this, we can add more resin material to the dentures to refit them or, in extreme cases of poor fit, create a new denture to match current gum contours. Alternatively, we can install a few dental implants that will support the denture instead of the gum ridges, which would inhibit further bone loss.
To learn whether dentures could be a good option for you, we’ll first need to conduct a thorough examination of your mouth. It could be this original tooth replacement system will bring back the teeth and smile you’ve lost.
If you would like more information on dentures, 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 “Removable Full Dentures.”
With all the new tooth-colored fillings for cavities, it's easy to overlook metal amalgam. While this mainstay of dental care for over a century might not be as attractive as composite resins or glass and resin ionomers, it still has the advantage of strength and durability.
Amalgam is a stable metal alloy usually made up of silver, tin, copper and mercury. The metals are proportioned and mixed precisely to guard against “free” mercury molecules, which could pose a health hazard. The mixture is pliable at first, but then sets hard once molded into the prepared area of the tooth.
Besides strength, amalgam's other advantages include low cost, high resistance to wear and biocompatibility (not toxic to the body or allergy-producing). At the same time, it can require more tooth structure removal to accommodate a filling and cause higher sensitivity to temperature for a while after installation. Its main disadvantage, however, is appearance — it's now considered unacceptable from an aesthetic point of view to use it in visible areas like the front teeth.
Because of this, materials resembling natural tooth color are coming into vogue, especially as their strength improves. Still, dental amalgam continues to play a useful role, especially in less visible back teeth with higher chewing forces.
One past concern about dental amalgam is the inclusion of mercury in the alloy. As mentioned before, mercury is hazardous in a “free” form when not knit microscopically with other metals; as such it can emit a vapor that could enter the bloodstream and damage the nervous system. But after several studies by various organizations, the American Dental Association has concluded amalgam's precise mixture prevents the mercury from taking this form: although some vapor is given off during chewing it's far too low in concentration to pose any danger.
Dental amalgam continues to be an effective choice for fillings. Whether it's the right choice for you will depend on the type and location of a tooth to be filled, and whether durability is a higher concern than appearance. If we do recommend an amalgam filling, you can be assured it's a safe and lasting choice.
If you would like more information on your choices for dental fillings, 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 “Silver Fillings — Safe or Unsafe?”
Everyone loves a concert where there's plenty of audience participation… until it starts to get out of hand.Â Recently, the platinum-selling band Fifth Harmony was playing to a packed house in Atlanta when things went awry for vocalist Camila Cabello. Fans were batting around a big plastic ball, and one unfortunate swing sent the ball hurtling toward the stage — and directly into Cabello's face. Pushing the microphone into her mouth, it left the “Worth It” singer with a chipped front tooth.
Ouch! Cabello finished the show nevertheless, and didn't seem too upset. “Atlanta… u wild… love u,” she tweeted later that night. “Gotta get it fixed now tho lol.” Fortunately, dentistry offers a number of ways to make that chipped tooth look as good as new.
A small chip at the edge of the tooth can sometimes be polished with dental instruments to remove the sharp edges. If it's a little bigger, a procedure called dental bonding may be recommended. Here, the missing part is filled in with a mixture of plastic resin and glass fillers, which are then cured (hardened) with a special light. The tooth-colored bonding material provides a tough, lifelike restoration that's hard to tell apart from your natural teeth. While bonding can be performed in just one office visit, the material can stain over time and may eventually need to be replaced.
Porcelain veneers are a more long-lasting solution. These wafer-thin coverings go over the entire front surface of the tooth, and can resolve a number of defects — including chips, discoloration, and even minor size or spacing irregularities. You can get a single veneer or have your whole smile redone, in shades ranging from a pearly luster to an ultra-bright white; that's why veneers are a favorite of Hollywood stars. Getting veneers is a procedure that takes several office visits, but the beautiful results can last for many years.
If a chip or crack extends into the inner part of a tooth, you'll probably need a crown (or cap) to restore the tooth's function and appearance. As long as the roots are healthy, the entire part of the tooth above the gum line can be replaced with a natural-looking restoration. You may also need a root canal to remove the damaged pulp material and prevent infection if the fracture went too far. While small chips or cracks aren't usually an emergency (unless accompanied by pain), damage to the tooth's pulp requires prompt attention.
If you have questions about smile restoration, please contact us and schedule an appointment. You can read more in the Dear Doctor magazine articles “Porcelain Veneers: Strength & Beauty As Never Before” and “Porcelain Crowns & Veneers.”