Posts for: August, 2018
Among the “to-do” items on your pre-dive checklist like “Pack wetsuit” or “Fill scuba tanks,” be sure to add one other: “Check my dental health status.”
While that may seem like an odd concern, the changes in atmospheric pressure you encounter while diving (or flying, for that matter) could amplify oral sensitivity and intensify pain if you have pre-existing teeth or jaw problems.
The reason for this is the effect of basic physics on the body. All anatomical structures, including organs, bones and muscles, equalize external pressures the body encounters. We don’t notice this at normal atmospheric pressure, but when we encounter an extreme — either lower pressure during air flight or higher pressure during a scuba dive — we may feel the effects of the pressure on any structure with a rigid-walled surface filled with either air or fluid. These structures can’t equalize the pressure as fast as other areas, resulting in pain or discomfort. This is known medically as “barotrauma,” or more commonly as a “squeeze.”
One structure in particular could have an effect on your upper teeth and jaws: the sinus cavities of the skull, particularly the maxillary sinuses just below the eyes. Their lower walls are right next to the back teeth of the upper jaw and, more importantly, share the same nerve pathways. It’s quite possible, then, for pain from one area to be felt in the other, commonly known as “referred pain.” A toothache could then be felt in the sinus region, and vice-versa.
During a squeeze, then, pain levels from existing problems in the teeth and jaws that were previously tolerable (or even unnoticed) may well become amplified as the pressure from the sinus cavity impinges upon the jaw. That dull toothache you’ve been having may suddenly become excruciating at 30,000 feet — or 30 meters under the surface.
That’s why it’s important to see us if you’ve experienced any signs of tooth decay, gum disease or TMD, including pain, before your next dive or air flight. And, if you encounter any significant pain while flying or diving, be sure you consult with us as soon as possible when you return. Taking action now could help you avoid a miserable, and potentially dangerous, flying or diving experience in the future.
If you would like more information on pressure changes and dental health, 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 “Pressure Changes can Cause Tooth and Sinus Pain.”
Fans of the primetime TV show The Middle were delighted to see that high school senior Sue, played by Eden Sher, finally got her braces off at the start of Season 6. But since this popular sitcom wouldn’t be complete without some slapstick comedy, this happy event is not without its trials and tribulations: The episode ends with Sue’s whole family diving into a dumpster in search of the teen’s lost retainer. Sue finds it in the garbage and immediately pops it in her mouth. But wait — it doesn’t fit, it’s not even hers!
If you think this scenario is far-fetched, guess again. OK, maybe the part about Sue not washing the retainer upon reclaiming it was just a gag (literally and figuratively), but lost retainers are all too common. Unfortunately, they’re also expensive to replace — so they need to be handled with care. What’s the best way to do that? Retainers should be brushed daily with a soft toothbrush and liquid soap (dish soap works well), and then placed immediately back in your mouth or into the case that came with the retainer. When you are eating a meal at a restaurant, do not wrap your retainer in a napkin and leave it on the table — this is a great way to lose it! Instead, take the case with you, and keep the retainer in it while you’re eating. When you get home, brush your teeth and then put the retainer back in your mouth.
If you do lose your retainer though, let us know right away. Retention is the last step of your orthodontic treatment, and it’s extremely important. You’ve worked hard to get a beautiful smile, and no one wants to see that effort wasted. Yet if you neglect to wear your retainer as instructed, your teeth are likely to shift out of position. Why does this happen?
As you’ve seen firsthand, teeth aren’t rigidly fixed in the jaw — they can be moved in response to light and continuous force. That’s what orthodontic appliances do: apply the right amount of force in a carefully controlled manner. But there are other forces at work on your teeth that can move them in less predictable ways. For example, normal biting and chewing can, over time, cause your teeth to shift position. To get teeth to stay where they’ve been moved orthodontically, new bone needs to form around them and anchor them where they are. That will happen over time, but only if they are held in place with a retainer. That’s why it is so important to wear yours as directed — and notify us immediately if it gets lost.
And if ever you do have to dig your retainer out of a dumpster… be sure to wash it before putting in in your mouth!
If you would like more information on retainers, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “The Importance of Orthodontic Retainers” and “Why Orthodontic Retainers?”
A critical part of effective, daily oral hygiene, flossing removes bacterial plaque from between teeth that can’t be accessed with brushing. Unfortunately, it’s often neglected — string flossing requires a bit more dexterity than brushing and can be difficult to do properly.
It can be even more difficult for people with implants or who wear orthodontic appliances. For brace wearers in particular, getting access to areas between teeth with string floss is next to impossible; the metal brackets and tension wire also have a tendency to catch and retain food debris that’s difficult to remove with brushing alone.
Water flossing, using a device called an oral irrigator, is an effective alternative that addresses many of these difficulties. First available for home use in the 1960s, an oral irrigator delivers pulsating water at high pressure through a handheld applicator that forcefully flushes material from between teeth.
There’s no question that string flossing is effective in plaque removal between teeth — but what about oral irrigators? A 2008 study looked at a group of orthodontic patients with braces who used oral irrigators and compared them with a similar group that only brushed. The study found that five times as much plaque was removed in the group using the oral irrigators as opposed to the group only brushing.
Oral irrigators may also be effective for people who’ve developed periodontal (gum) disease. In fact, oral irrigators coupled with ultra-sound devices are routinely used by dental hygienists to remove plaque and calculus (hardened plaque deposits) in periodontal patients. As with regular oral hygiene, though, it’s important for patients with gum disease to include water flossing with daily brushing (at least twice a day) and regular cleaning sessions at the dentist to ensure removal of all plaque and calculus.
If you’re interested in using an oral irrigator, be sure to consult with us at your next appointment. Not only can we recommend features to look for in equipment, but we can also instruct you on the techniques to make water flossing an effective plaque remover.
If you would like more information on water flossing, 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 “Cleaning Between Your Teeth.”