Posts for: January, 2020
If you’ve ever read online that root canal therapy causes cancer, don’t be alarmed—it doesn’t. What it does do is save a deeply decayed tooth that might otherwise be lost.
Tooth decay is caused by acid produced by bacteria, which dissolves enamel to create a hole or cavity. But it doesn’t stop there: decay can move on to infect the tooth’s innermost layer, the pulp filled with nerves and blood vessels. Unchecked, the resulting infection can travel through the root canals to eventually infect the bone.
A root canal treatment stops the infection before it goes this far. After administering a local anesthetic, we drill a small hole into the tooth to access the pulp chamber and root canals. We then remove all the diseased tissue, disinfect the space and then place a filling within the empty chamber and root canals to prevent further infection. We then seal the access hole and later crown the tooth to further protect and stabilize it.
It’s no exaggeration, then, to say that root canal treatments have saved millions of teeth. So, for all its beneficial effect, why is it considered by some to pose a health danger?
The germ for this notion comes from the early 20th Century when a dentist named Weston Price theorized that leaving a “dead” organ in place would harm the body. Since a root-canaled tooth with the pulp’s living tissue removed is technically no longer viable, it fit the category of “dead” tissue. Thus, according to this theory, maladies like cancer could arise because of the “dead” tooth.
Unfortunately, this theory has found a somewhat new life recently on the internet, even though it was thoroughly investigated and debunked in the 1950s. And as late as 2013, a study published in a journal of the American Medical Association found no increased cancer risk after root canal treatment, and even some evidence for a reduced risk.
So, if your dentist recommends root canal treatment, rest assured it’s needed to save your tooth. Rather than harm your health, it will improve it.
If you would like more information on root canal 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 “Root Canal Safety.”
Besides their life-likeness, implants are also prized for their high success rate. More than ninety-five percent of implants continue to function effectively after ten years.
Implants’ advanced technology explains some of their reliability and longevity—they’re as close to natural teeth as we’re now able to achieve. But their impressive success rate also owes to the detailed protocols that dentists follow to install them. One critical part of these protocols is ensuring a patient has enough bone in their jaw to support and precisely situate the implant for the best functional and aesthetic outcome.
Unfortunately, there are situations where a patient doesn’t have enough bone to achieve a satisfactory result. This often happens if there’s been months or years between losing the tooth and considering an implant. The reason why relates to the nature of bone as living tissue.
Like other cellular tissues in the body, bone has a life cycle: Older, worn-out cells die and are absorbed by the body, and new cells form to replace them. The growth cycle in the jaw receives stimulation from the forces generated when we chew, which travel up through the teeth to the bone.
However, this stimulation stops after tooth loss for the related area of bone, which can slow new bone growth. Over time, the volume and density of the bone around a missing tooth gradually decreases, enough eventually to make an implant impractical.
Insufficient bone volume, though, doesn’t necessarily mean an implant is out of the question. We may be able to address the problem by attempting to regenerate the bone through grafting. This is a procedure in which we insert graft material into the affected area of the jawbone. The graft then becomes a scaffold upon which bone cells can grow. After several months, we may have enough regenerated bone to support an implant.
If there’s been too much bone loss, we may still need to consider another form of restoration. But if we can successfully build up the bone around your missing tooth, this premier restoration for replacing lost teeth could become a reality for you.
How do you know if you have periodontal (gum) disease? Sometimes your gums will tell you—when they’re red, swollen or bleed easily.
But your gums can also look and feel healthy while a gum infection still brews below the gum line. In this case, a regular dental visit could make the difference. Even without overt signs of infection, we may be able to detect gum disease with a slender metal instrument called a periodontal probe.
Gum disease is a bacterial infection that most of the time arises from dental plaque. This thin film of bacteria and food particles accumulates on tooth surfaces, especially because of poor or non-existent oral hygiene. A continuing infection can weaken gum tissues and cause them to pull away or detach from the teeth.
Normally, there’s a slight gap between the gums and teeth. But as the infected gums pull away, the gaps grow larger and deeper, forming what are known as periodontal pockets. They become filled with infection that soon spreads to the root and bone and increases the risk of tooth loss.
These pockets, though, could be the means for detecting a gum infection with the help of the periodontal probe. During a dental exam we gently insert the probe, which has millimeter depth markings etched on it, between a tooth and its adjacent gums. While a depth of 1 to 3 mm is normal, a probe measurement of 4 to 5 mm could be a sign of an early stage infection. A reading of 7 to 10 mm, on the other hand, may indicate more advanced disease.
Along with other factors, periodontal probing can be quite useful identifying both the presence and extent of a gum infection and then how to treat it. The goal of any treatment is to remove plaque and tartar (calculus) deposits that sustain the infection. But probing, along with other diagnostic methods like x-rays, could point to deeper infection below the gum line that require more extensive methods, including surgery, sometimes to access and remove the disease.
Achieving the best treatment outcome with gum disease often depends on finding the infection early. Periodontal probing helps to make that discovery more likely.