Posts for: June, 2020
There are a lot of ways to improve the appearance of your teeth. Some methods can be quite involved like crowns or bridgework, which require extensive alteration of teeth to accommodate them.
Other methods, though, can achieve stunning results with less tooth reduction or alteration to your teeth. Porcelain veneers are one such alternative that literally puts a new face on your teeth. A dental veneer is a thin layer of restorative material (usually porcelain) that is bonded to the outside of a tooth to cover blemishes. They’re an excellent choice for dealing with otherwise healthy teeth with mild to moderate chipping, wearing, staining or slight misalignment.
Veneers can be fashioned to match the shape and texture of the prepared tooth, as well as coloring that blends with neighboring teeth. They’re created by skilled dental lab technicians who use porcelain powder mixed with water to create layers of pliable porcelain laminated together to achieve the appropriate thickness and shape. The veneer is then oven-fired to produce a strong, durable product.
Their use in various dental situations does require some tooth preparation, though normally not as much as other restorative measures — usually no more than 0.5 mm of surface enamel. Removing this small amount will ensure the veneer doesn’t look too thick and bulky once bonded to the tooth.
There are some situations, though, where veneers aren’t the best choice: because they’re mainly a cosmetic solution, they can’t remedy problems like poor tooth position and bite or large discrepancies in root position. And teeth that are heavily decayed may require more extensive dental work to repair and preserve them.
In the right situation, though, veneers can make a huge difference to your smile and last for years, as long as you practice effective oral hygiene and don’t subject them to abnormal biting force (no cracking hard shell nuts with them — they can shatter). In skilled hands, veneers can transform your teeth from embarrassing to dazzling.
If you would like more information on porcelain veneers, 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 “Smile Design Enhanced with Porcelain Veneers.”
Recently, a number of new filling materials that mimic tooth color have come into popular use and, so far, have proven more durable than past versions. Even so, the traditional metal-based dental amalgam remains a viable choice, especially for less visible back teeth and their higher biting forces.
Used for more than a century, dental amalgam is a metal alloy composed of silver, mercury, tin and copper. The mixture is carefully proportioned so that potentially hazardous mercury is kept to a minimum and bonded with the other metals. Amalgam in its initial form is quite pliable so that it can be molded into the tooth structure under repair. Afterward it sets hard to form a durable filling that can withstand the daily force generated when we bite and chew food.
Besides durability, dental amalgam rarely causes an allergic reaction in a patient, and it’s easy for trained dentists to apply. On the downside, however, it can cause temporary temperature sensitivity in the tooth just after filling, and the tooth itself may require some removal of healthy structure to help keep the filling in place. And from an aesthetic point of view, its metallic appearance is considered unattractive especially for front teeth.
The presence of mercury in amalgam has also raised concerns over the years. “Free” mercury — atoms that escape through vapor emitted by the metal — can enter the bloodstream and potentially harm the nervous system. But after extensive study and research, U.S. and international health bodies including the American Dental Association have concluded any free mercury released during chewing is extremely low and well below any harmful levels. These studies have also found no ill effects in either children or adults with dental amalgam fillings.
Deciding on the type of filling material to use — dental amalgam or a newer composite resin, resin ionomer or glass ionomer — depends on a number of factors including the location of the teeth to be filled, the extent of decay and your personal preferences. Taking these into account, we’ll be happy to discuss which type of filling will suit you best for repairing decayed teeth.
If you would like more information on filling material options including dental amalgam, 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?”
We’ve come a long way in our ability to restore missing teeth. Today’s top choice is dental implants, prized not only for their close resemblance to real teeth but also their durability.
The rise of implants, though, hasn’t put older restorative methods out to pasture—many continue to offer patients a viable and affordable choice for tooth replacement. One example is the removable partial denture (RPD).
Once quite common, RPDs’ popularity has only slightly diminished with the advent of implants. They’re a fair option in terms of dental function and appearance, and much less expensive than implants or fixed bridges.
Similar to a full denture—a removable appliance that replaces all the teeth on a dental arch—a RPD can replace multiple missing teeth in a variety of configurations. A traditional RPD is usually constructed of vitallium, a lightweight but strong metal alloy, which allows for a very thin and comfortable frame. It’s covered in a gum-colored resin or plastic with prosthetic (false) teeth precisely set at the missing teeth’s locations. The appliance stays in place through a series of clasps that attach to the remaining teeth.
Each RPD is custom-made to fit a patient’s mouth contours and the locations and patterns of the missing teeth. The top design goal for each individual RPD is to minimize any rocking movement during chewing; achieving that goal will depend not only on how many teeth are missing and where, but also what type of teeth are being replaced. For example, teeth missing from the back would require a different support design than teeth missing from the side or front.
RPDs’ biggest benefits are comfortable fit, effective dental function and good appearance. However, their means of attachment can create difficulties keeping remaining teeth clean of disease-causing bacterial plaque. Furthermore, an ill-fitting or unstable RPD could damage or even loosen natural teeth. It’s therefore essential for wearers to diligently practice daily hygiene (including cleaning the RPD) and undergo regular fit monitoring with their dentist.
Even with these constraints, a RPD can do an acceptable job providing dental function. What’s more, it can definitely improve your smile.
If you would like more information on options for dental restoration, 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 Partial Dentures: Still a Viable Tooth-Replacement Alternative.”