Posts for category: Dental Procedures
The final emergence of permanent teeth in late adolescence marks the end of a long process beginning in the womb with the formation of our primary or “baby” teeth. Permanent teeth form in a similar way as buds high in the jaw, continuing to grow until the primary teeth ahead of them fall away. The crowns of the new adult teeth eventually break through the gum tissue and emerge (erupt) into view.
At least, that’s normally what should happen; sometimes, though, a tooth may only erupt partially or not at all, a condition known as impaction. The crown remains partially or fully submerged below the gum line, causing the tooth to press against other teeth, potentially damaging them. It can also make periodontal (gum) tissues adjacent to the area more susceptible to disease. Wisdom teeth are especially prone to this kind of impaction, to the extent they’re often surgically removed (extracted) to avoid future problems to adjacent teeth or the bite.
Upper canines (the “eye teeth” normally located directly below the eyes) are also subject to impaction. But because of their highly visible position, extracting them could have an adverse impact on the patient’s smile. In this case, we often attempt instead to expose and ultimately save the tooth.
Before taking any action, however, an orthodontic examination is conducted first to pinpoint the exact position of the impacted tooth and determine how that position might affect moving teeth into a more desired alignment. If we find the impacted canine is in a workable position, the next step is to surgically uncover the tooth from the gum tissue (a minor procedure usually performed by an oral surgeon or periodontist). Once exposed, an orthodontic bracket with a small attached gold chain is bonded to the tooth. The gums are then sutured back into place with the chain exposed and allowed to heal.
At some future point an orthodontist will attach the chain to orthodontic hardware that will pull the impacted tooth into proper position over several months. As a result, the upper canine becomes “un-impacted”; the dangers to surrounding teeth and tissues are also reduced. And, just as important, we can preserve the tooth and with orthodontics achieve an attractive, normal smile.
If you would like more information on the effects and treatment of impacted teeth, 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 “Exposing Impacted Canines.”
If you have discolored teeth, the cause is often staining on the enamel surfaces from foods, beverages, or smoking. But tooth discoloration may also originate deep within the root of a tooth. Sometimes this happens to a tooth that had to have earlier root canal treatment because of injury or decay.
In such cases the living pulp tissue and its blood vessels and nerves had to be removed from the root canals, resulting in the death of the dentin layer, which makes up most of the tooth's body. Over time this caused the dentin to darken. The color may come from remains of blood that was left in the tissue, or from filling materials left in the root canal that are showing through.
Since these stains are caused internally (intrinsic) and not on the outside of the tooth (extrinsic) they must be whitened from the inside. This is usually done by putting a bleaching agent into the empty chamber from which the pulp was removed. Usually the bleaching agent is a substance called sodium perborate.
When it is mixed with a solution of hydrogen peroxide, sodium perborate slowly bleaches the color from the tooth's internal material. It is considered to be safe and reliable for this use.
The work begins by taking x-ray images to make sure that the root canal is correctly sealed and the bone is healthy. After this, we will make a small hole in the back of the tooth through which the root canal space will be cleaned. The root canal space will be sealed and the bleach will be applied in a putty-like form and sealed off from the rest of your mouth. Every few days this procedure will be repeated until the bleaching reaches the desired level.
At this point a tooth-colored composite resin will be used to seal the small hole that was made in the dentin to insert the bleach. After the tooth has reached the level of whiteness that matches it to your other teeth, veneers or crowns must sometimes be used to repair the surface if it is chipped or misshapen, for example.
Contact us today to schedule an appointment to discuss your questions about whitening internally discolored teeth. You can also learn more by reading the Dear Doctor magazine article “Whitening Traumatized Teeth.”
Some patients who wear dentures face a kind of Catch-22: their denture fit may have loosened and become uncomfortable over time due to continued bone loss, yet the same bone loss prevents them from obtaining dental implants, a superior tooth replacement system to dentures.
But there may be a solution to this dilemma that combines the stability of implants with a removable denture. A set of smaller diameter implants — “mini-implants” — can support a removable denture with less bone than required by a conventional implant.
Like all living tissue, bone has a life cycle: after a period of growth, the older bone dissolves and is absorbed by the body, a process known as resorption. The forces generated when we bite or chew are transmitted by the teeth to the jawbones, which stimulates new bone formation to replace the resorbed bone. When the teeth are lost, however, the stimulation is lost too; without it, resorption will eventually outpace bone growth and repair, causing the bone mass to shrink.
Removable dentures also can’t supply the missing stimulation — bone loss continues as if the dentures weren’t there; and due to the compressive forces of a denture, bone loss accelerates. As the jawbone structure used to originally form the denture’s fit eventually shrinks, the denture becomes loose and difficult to wear. It’s possible to adjust to the new jaw contours by relining the dentures with new material or creating a new set of dentures that match the current bone mass. Without adequate bone, fixed crowns or bridges anchored by conventional implants may also be out of the picture.
On the other hand, mini-implants with their smaller diameter need less bone than the traditional implant. A few strategically placed within the jaw are strong and stable enough to support a removable denture. One other advantage: these mini-implants can be installed in one visit with local anesthesia and usually without the need for incisions or stitches.
If you would like more information on dentures supported by mini-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 “The ‘Great’ Mini-Implant.”
Modern restorations for severely damaged or missing teeth are truly remarkable. Although the type of restoration may differ — dental implant, bridge, or veneer — the end result is a life-like facsimile that matches the shape and color of your natural teeth.
To achieve this result, though, the new crown or veneer requires fabrication in a dental laboratory, a meticulous process that may take a few weeks. In the interim, we often install temporary crowns. These help in a number of ways: because we’ve prepared the teeth for final restoration by removing some of the tooth structure, the temporary crown protects and stabilizes the teeth, reduces sensitivity and helps maintain gum health. Temporary crowns also enable the patient to present a more natural smile while waiting for the permanent restoration.
Temporary crowns are typically manufactured to fit a wide range of patients, similar to an “off-the-rack” suit from a clothing store. In recent years, though, customized “tailored” temporary crowns designed specifically for an individual patient have grown in popularity among dental professionals as well as patients.
In creating a customized temporary crown, we first perform a smile analysis similar to one used for a permanent restoration. After a careful assessment of your mouth, we would then make recommendations about the elements to include in the temporary crown, including shape and color. We would also factor in your desires and concerns into the final design. Working together with the dental laboratory, we would then have the temporary crowns produced and ready to apply as soon as we complete the preparatory work.
Customized temporary crowns also serve another important purpose as a kind of “dress rehearsal” for the permanent restoration. This gives you an opportunity to “try out” the smile you’ll have with the permanent restoration in your daily life. We can then use your experience to make adjustments to the permanent crowns before final production.
While customized temporary crowns involve more effort and expense than the traditional, the benefits are worth the added cost, especially if you’re involved with an extensive “smile makeover” procedure. Not only will you look better while your permanent restoration is under construction, your temporary look will give you added confidence that your future smile is right for you.
If you would like more information on temporary and permanent dental 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 “Concepts of Temporary Restorations.”
We now have an amazing repertoire in dentistry to restore the look and function of damaged or missing teeth. From tooth-colored crowns to life-like dental implants, we can turn an embarrassing smile into one you’re confident to show the world.
But what if your teeth are visually unappealing but structurally sound? Perhaps they’re slightly irregular or discolored — do you still need the “heavy artillery” in our arsenal of restoration options?
Not at all — dental veneers that provide amazing aesthetic results with minimal tooth preparation may be an appropriate restoration choice for you. As the name implies, veneers are a thin layer of dental material (usually porcelain) that’s permanently bonded to the outside of a tooth. Veneers can be shaped to resemble natural teeth — especially effective for changing the appearance of small or slightly misshapen teeth — and can be customized to match an individual patient’s tooth color.
Veneered teeth require very little preparation compared to other restorations; still, most veneer applications do require some permanent enamel removal so that the applied veneers appear natural. In recent years, however, changes in veneer design and materials have made it possible for some patients to receive veneers without some tooth prep.
If taken care of properly, veneers can last anywhere from seven to twenty years (in some cases, more). While their material composition and the bonding process can withstand normal biting forces, wearers need to keep in mind porcelain is a form of glass — excessive twisting or pressures from excessive grinding habits could cause them to shatter.
And because veneers are made of an inert, non-living material, they can’t adapt to any changes that may occur biologically to your teeth and gums and may need to be updated at some point in the future. The good news is that a loosened veneer can often be repaired.
If you’d like to know if you’re a good candidate for this cost-effective, minimally invasive option, visit us for an examination. Balancing all the factors, porcelain veneers just may be your answer to achieving a better smile.
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 “Porcelain Veneers.”