Posts for: December, 2020
Home whitening kits are a popular way to turn a dull smile into a dazzling one. But these self-applied products only work for teeth with outer enamel stains — if the discoloration originates inside a tooth, you’ll need professional treatment.
Known as “intrinsic staining,” this type of discoloration most often occurs within a tooth’s pulp or dentin layers. There are a number of causes like tooth trauma or tetracycline use at an early age. A root canal treatment used to remove infection from deep within a tooth can also cause discoloration: sometimes blood pigments left after tissue removal or the filling materials themselves can stain a tooth’s interior.
Intrinsic staining can often be treated by placing a bleaching agent, usually sodium perborate, into the tooth’s pulp chamber. But before undertaking this procedure on a tooth that’s undergone a root canal treatment,Â we want to first ensure the filling is intact and still adequately sealing the tooth from infection. We also want to make sure the supporting bone is also healthy.
If all’s well, we access the pulp in the same way as the root canal treatment, and preferably through the same access hole. We then clean out the pulp chamber of any stained matter and then ensure the root canals remain filled and sealed off from the pulp chamber.
We can then place the bleaching agent into the pulp, a process that will need to be repeated every three or four days to achieve the desired level of brightness. After each session we place a cotton pellet over the opening and held in place with a temporary adhesive; we can easily remove and re-apply this covering during subsequent sessions. Once we’ve achieved the desired color change, we seal the tooth with a permanent filling and restore the access cavity with a tooth-colored composite resin material bonded to the enamel and dentin.
There are other options for an intrinsically stained tooth like veneers or crowns that outwardly cover the discoloration. Internal bleaching, however, is a more conservative approach that causes less alteration of the tooth. If successful, it can restore a stained tooth to a brighter, more attractive shade.
If you would like more information on internal bleaching, 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 “Whitening Traumatized Teeth.”
Eliminating pain and discomfort is one of our major objectives during dental treatment. To that end, our profession has developed a number of anesthetic drugs and deliveries that ensures your experience in the dentist’s chair is as pain-free as possible.
But there’s another experience many people have with dental care that’s different from physical discomfort — emotional anxiety. These negative emotions can range from nervousness about a procedure to extreme fear. Very often the patient has no control over these emotions — they’ve become imbedded from earlier experiences or the influence of others.
Although each can influence and heighten the other, anxiety and physical discomfort are different and require a different approach. Physical pain and sensation is eliminated through anesthesia, either locally through topical application or injection or generally through intravenous medication that renders a person unconscious. Anxiety, on the other hand, requires first building a trustful relationship with an understanding dentist. But it may also call for certain drugs that sedate — promote a feeling of relaxation — rather than numb sensation.
We’ve incorporated a number of sedative medications in dentistry like Valium or Ativan that work well to reduce anxiety before and during treatment. Many are taken orally, usually just before scheduled treatment, and they dissipate from the system quickly afterward. Some medications also have “amnesic” qualities, meaning you won’t remember anything or little at all about the treatment period. This can be helpful in amassing positive treatment experiences that may diminish negative feelings you’ve developed about dental treatment.
It’s important, though, to find the right types of medication that work well for you. For that reason we’ll take a thorough medical history, including prescription or over-the-counter medications and supplements you’re taking and any medical conditions you may have. It’s also important to discuss your diet (certain foods can inhibit the action of some sedatives) as well as if you use tobacco or regularly drink alcoholic beverages.
Taken properly, oral sedation can effectively reduce your anxiety during treatment. As a result, it will be much easier and pleasant for you to receive the care you need for a healthy mouth.
If you would like more information on reducing anxiety during dental treatment, 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 “Oral Sedation Dentistry.”
The subject of allergies covers a wide swath in medicine. Among other things, people have allergic reactions to animal fur, various foods and plant pollen. The effects are equally wide-ranging, anything from a mild rash to anaphylaxis, a life-threatening shutdown of the body's vital systems.
Approximately 5% of people are also allergic to various metals including nickel, cobalt, chromium and gold. Reactions to metal can occur when an allergic person comes in contact with items like jewelry, clothing or even mobile phones. There's even a chance of a metal allergy reaction from certain kinds of dental work.
It's unlikely, though, that you should be concerned if you're considering dental treatment or cosmetic work to upgrade your smile. Although allergic reactions like inflammation or a rash have been known to occur with amalgam “silver” fillings, it's quite rare. It's even less of a concern since “tooth-colored” materials for fillings are now outpacing the use of amalgam fillings, which are used in out-of-sight back teeth.
Of course, metal is used for other dental treatments besides fillings, including the most popular of tooth replacement systems, dental implants. An implant is essentially a metal post, usually made of pure titanium or a titanium alloy, which is imbedded into the jawbone. Even so, there's little chance you'll develop an allergic reaction to them.
For one thing, titanium is highly prized in both medical and dental treatments because of its biocompatibility. This means titanium devices like prosthetic joints and implants won't normally disrupt or cause reactions with human tissue. Titanium is also osteophilic: Bone cells readily grow and adhere to titanium surfaces, a major reason for dental implants' long-term durability.
That's not to say titanium allergies don't exist, but their occurrence is very low. One recent study detected a titanium allergy in only 0.6% of 1,500 implant patients who participated.
At worst, you may need to consider a different type of tooth replacement restoration in the rare chance you have a titanium allergy. More than likely, though, you'll be able obtain implants and enjoy the transformation they can bring to your smile.
If you would like more information on allergic reactions and 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 “Metal Allergies to Dental Implants.”