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.”
Tooth decay is one of the most common diseases in the world, nearly as prevalent as the common cold. It’s also one of the two major dental diseases—the other being periodontal (gum) disease—most responsible for tooth and bone loss.
Tooth decay begins with high levels of acid, the byproduct of oral bacteria feeding on food remnants like sugar. Acid can erode tooth enamel, leading to a cavity that will require removal of decayed material around it and then a filling.
Sometimes, though, decay can spread deeper into the tooth reaching all the way to its core: the pulp with its bundle of nerves and blood vessels. From there it can travel through the root canals to the bone. The continuing damage could eventually lead to the loss of the infected tooth.
If decay reaches the tooth interior, the best course of action is usually a root canal treatment. In this procedure we access the pulp through the crown, the visible part of the tooth, to remove all of the diseased and dead tissue in the pulp chamber.
We then reshape it and the root canals to receive a filling. The filling is normally a substance called gutta percha that’s easily manipulated to conform to the shape of the root canals and pulp chamber. After filling we seal the access hole and later cap the tooth with a crown to protect it from re-infection.
Root canal treatments have literally saved millions of teeth. Unfortunately, they’ve gained an undeserved reputation for pain. But root canals don’t cause pain—they relieve the pain caused by tooth decay. More importantly, your tooth can gain a new lease on life.
But we’ll need to act promptly. If you experience any kind of tooth pain (even if it goes away) you should see us as soon as possible for an examination. Depending on the level of decay and the type of tooth involved, we may be able to perform the procedure in our office. Some cases, though, may have complications that require the skills, procedures and equipment of an endodontist, a specialist in root canal treatment.
So, don’t delay and allow tooth decay to go too far. Your tooth’s survival could hang in the balance.
If you would like more information on tooth decay treatment, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Root Canal Treatment: What You Need to Know.”
Dental implants are today’s closest restorative facsimile to natural teeth. And they’re versatile: not only can they replace single teeth but they can also support bridges or dentures.
But since one of their crucial components is made of metal, are you out of luck obtaining this state-of-the-art dental restoration if you have a metal allergy?
The answer is: probably not—it’s rare for implants to cause an allergic reaction. Still, metal allergies can be a potential problem within your mouth as with other areas of health.
An allergy originates from the body’s necessary response to potentially harmful microorganisms or substances. Sometimes, however, this response becomes chronic and exaggerated, creating an allergy. People can have allergies to nearly anything with responses ranging from a minor rash to a potentially life-threatening multi-organ system shutdown (anaphylactic shock).
A small number of people have allergies to particular metals. One of the most common is nickel, which affects an estimated 17% of women and 3% of men; cobalt and chromium are also known to cause allergies. Consumer exposure, particularly metal contact with the skin through jewelry or clothing, is the most prevalent, but not the most concerning. That’s reserved for metal allergies related to medical devices like coronary stents or hip and knee prostheses. And in dentistry, there are rare occasions of inflammation or rashes from metal amalgam fillings.
Which brings us to dental implants: the main metal post that’s inserted into the jawbone is usually made of titanium. It’s the metal of choice for two reasons: it’s bio-compatible, meaning the body normally accepts its presence; and it’s osteophilic, which means bone cells readily grow and adhere to it, a major reason for implant durability.
While it’s possible for someone to have an allergy and subsequent reaction to implants with titanium, the occurrences appear to be extremely low. In one study of 1,500 patients, titanium allergies were estimated to be a factor in implant failures in less than 1% of those studied.
Even so, if you have known metal allergies you should make sure your dentist knows. Being aware of all the facts will help them recommend the best tooth replacement choice for you—and hopefully it will be dental implants.
If you would like more information on dental implant restorations, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Metal Allergies to Dental Implants.”