Posts for: September, 2021
Finding out you have a cavity isn't the best of news. But finding out it's a root cavity is even worse: if not treated, the decay can spread more rapidly than a cavity occurring in the tooth's crown surfaces.
Our teeth are basically composed of two parts: the crown, the visible tooth above the gum line, and the roots, the hidden portion beneath the gums. The root in turn fits into a bony socket within the jaw to help hold the tooth in place (along with attached gum ligaments).
A tooth crown is covered by an ultra-hard layer of enamel, which ordinarily protects it from harmful bacteria. But when acid produced by bacteria comes into prolonged contact with enamel, it can soften and erode its mineral content and lead to a cavity.
In contrast to enamel, the roots have a thin layer of material called cementum. Although it offers some protection, it's not at the same performance level as enamel. But roots are also normally covered by the gums, which rounds out their protection.
But what happens when the gums shrink back or recede? This often occurs with gum disease and is more prevalent in older people (and why root cavities are also more common among seniors). The exposed area of the roots with only cementum standing in the way of bacteria and acid becomes more susceptible to cavity formation.
Root cavities can be treated in much the same way as those that occur in the crown. We first remove any decayed tooth structure with a drill and then place a filling. But there's also a scenario in which the cavity is below the gum line: In that case, we may need to gain access to the cavity surgically through the gums.
If you have exposed root areas, we can also treat these with fluoride to strengthen the area against cavity formation. And, as always, prevention is the best treatment: maintain a daily schedule of brushing and flossing and regular dental cleanings to remove bacterial plaque.
Because decay can spread within a tooth, dealing with a root cavity should be done as promptly as possible. But if we diagnose and initiate treatment early, your chances of a good outcome are high.
If you would like more information on treating root cavities and other forms of tooth decay, 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 Cavities.”
Buffalo Bills wide receiver Stefon Diggs wrapped up the NFL regular season in January, setting single-season records in both catches and receiving yards. The Bills handily beat the Miami Dolphins, earning themselves the second seed in the AFC playoffs, and Diggs certainly did his part, making 7 catches for 76 yards. But what set the internet ablaze was not Diggs' accomplishments on the field but rather what the camera caught him doing on the sidelines—flossing his teeth!
The Twitterverse erupted with Bills fans poking fun at Diggs. But Diggs is not ashamed of his good oral hygiene habits, and CBS play-by-play announcer Kevin Harlan expressed his support with “Dental hygiene is something to take note of, kids! There's never a bad place to floss” and “When you lead the NFL in catches and yards, you can floss anytime you want.”
We like to think so. There's an old joke among dentists:
Q. Which teeth do you need to floss?
A. Only the ones you want to keep.
Although this sounds humorous, it is borne out in research. Of note, a 2017 study showed that people who floss have a lower risk of tooth loss over periods of 5 years and 10 years, and a 2020 study found that older adults who flossed lost an average of 1 tooth in 5 years, while those who don't lost around 4 teeth in the same time period.
We in the dental profession stress the importance of flossing as a daily habit—and Stefon Diggs would likely agree—yet fewer than 1 in 3 Americans floss every day. The 2016 National Health and Nutrition Examination Survey (NHANES), conducted by the CDC's National Center for Health Statistics, revealed that only 30% of Americans floss every day, while 37% floss less than every day and 32% never floss.
The biggest enemy on the football field may be the opposing team, but the biggest enemy to your oral health is plaque, a sticky film of bacteria and food debris that builds up on tooth surfaces. Plaque can cause tooth decay and gum disease, the number one cause of tooth loss among adults. Flossing is necessary to remove plaque from between teeth and around the gums where a toothbrush can't reach. If not removed, plaque hardens into tartar, which can only be removed by the specialized tools used in the dental office. Regular professional dental cleanings are also needed to get at those hard-to-reach spots you may have missed.
If Diggs can find time to floss during a major NFL game, the rest of us can certainly find a couple minutes a day to do it. While we might not recommend Diggs' technique of flossing from one side of the mouth to the other, we commend his enthusiasm and commitment to keeping his teeth and gums healthy. Along with good dental hygiene at home—or on the sidelines if you are Stefon Diggs—regular professional dental cleanings and checkups play a key role in maintaining a healthy smile for life.