Posts for: July, 2018
As dentists, we often see other mouth problems besides those with teeth and gums. One of the most common is cracking around the corners of the mouth. Although usually not serious, it can be irritating and uncomfortable.
Medically known as angular cheilitis (literally “an inflammation of the angles of the lip”), it’s also called perleche, derived from the French lecher, “to lick.” The latter moniker aptly describes the tendency of sufferers to compulsively lick the sores to relieve irritation, which actually can make things worse.
Perleche has a number of possible causes, mostly from in or around the mouth (although systemic diseases or medications can cause it on rare occasions). It’s often found among younger people who drool during sleep or older people with deep wrinkles along the sides of the mouth that increase the chances of dryness and cracking. Long-term wind or cold exposure, ill-fitting dentures or a lack of back teeth (which help support facial structure) may also contribute to the condition.
Patients with perleche can also develop yeast infections from a strain called candida albicans. The infection can spread through the whole mouth, significantly increasing the chances of physical discomfort.
Treating perleche often involves topical ointments with inflammation-reducing steroids and zinc oxide, which has antifungal properties, to provide an environmental barrier during the healing process. If a yeast infection occurs, we may treat it with oral or topical antifungal medication like Nystatin for the whole mouth and chlorhexidine rinses, which has antibacterial properties.
It also helps to adopt a few preventive measures that can minimize the occurrence of perleche. If you wear dentures, for example, cleaning them often (including, if necessary, with chlorhexidine) and leaving them out at night reduces bacterial and fungal growth. We can also see if your dentures are fitting properly. Replacing missing teeth provides better facial support and could minimize wrinkling around the mouth. And, of course, keeping up daily brushing and flossing helps ensure a healthy and disease-free mouth.
If you’re experiencing cracked mouth corners, let us know at your next appointment. With our help and of other medical professionals we may be able to give you relief from this irritating condition.
If you would like more information on gaining relief from angular cheilitis, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Cracked Corners of the Mouth.”
The March 27th game started off pretty well for NBA star Kevin Love. His team, the Cleveland Cavaliers, were coming off a 5-game winning streak as they faced the Miami Heat that night. Less than two minutes into the contest, Love charged in for a shot on Heat center Jordan Mickey—but instead of a basket, he got an elbow in the face that sent him to the floor (and out of the game) with an injury to his mouth.
In pictures from the aftermath, Love’s front tooth seemed clearly out of position. According to the Cavs’ official statement, “Love suffered a front tooth subluxation.” But what exactly does that mean, and how serious is his injury?
The dental term “subluxation” refers to one specific type of luxation injury—a situation where a tooth has become loosened or displaced from its proper location. A subluxation is an injury to tooth-supporting structures such as the periodontal ligament: a stretchy network of fibrous tissue that keeps the tooth in its socket. The affected tooth becomes abnormally loose, but as long as the nerves inside the tooth and the underlying bone have not been damaged, it generally has a favorable prognosis.
Treatment of a subluxation injury may involve correcting the tooth’s position immediately and/or stabilizing the tooth—often by temporarily splinting (joining) it to adjacent teeth—and maintaining a soft diet for a few weeks. This gives the injured tissues a chance to heal and helps the ligament regain proper attachment to the tooth. The condition of tooth’s pulp (soft inner tissue) must also be closely monitored; if it becomes infected, root canal treatment may be needed to preserve the tooth.
So while Kevin Love’s dental dilemma might have looked scary in the pictures, with proper care he has a good chance of keeping the tooth. Significantly, Love acknowledged on Twitter that the damage “…could have been so much worse if I wasn’t protected with [a] mouthguard.”
Love’s injury reminds us that whether they’re played at a big arena, a high school gym or an outdoor court, sports like basketball (as well as baseball, football and many others) have a high potential for facial injuries. That’s why all players should wear a mouthguard whenever they’re in the game. Custom-made mouthguards, available for a reasonable cost at the dental office, are the most comfortable to wear, and offer protection that’s superior to the kind available at big-box retailers.
If you have questions about dental injuries or custom-made mouthguards, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “The Field-Side Guide to Dental Injuries” and “Athletic Mouthguards.”
One of the most widely used forms of dental imaging is the bitewing x-ray. So called because of the shape of the device that holds the exposable film a patient clenches between their back teeth, the bitewing x-ray is an effective means for detecting the earliest stages of tooth decay.
These early signs are small lesions on a tooth surface caused by mineral loss in the enamel. While we can identify them on front teeth through visual examination or bright lighting, they’re nearly impossible to see on the biting surfaces of back teeth. The bitewing x-ray solves this problem.
During the procedure, a narrow beam of x-rays is directed at the back teeth area. Since X-rays can transmit through solid matter, they pass through the teeth and gums to expose the film attached to the bitewing assembly.
X-rays pass through matter at different rates depending on the density of the tissue — a slower rate for harder tissues like teeth and bone and a faster rate for soft tissues like the gums. As a result, x-rays through teeth expose less of the film and appear as a lighter image than the gums. This difference is so precise even a tooth’s softer dentin appears slighter darker than its harder outer enamel.
This precision helps us identify decay lesions. Because the lesions on the enamel are less dense than the normal enamel, they’ll appear as dark spots. By detecting them at this stage we have a better chance for reversing the effects of decay or at least minimizing damage that’s already occurred.
Because x-rays emit radiation, there’s a natural concern about over-exposure and we go to great lengths to reduce it. Children may undergo a bitewing x-ray twice a year for developing teeth, while adults with healthy teeth are typically x-rayed just once a year. Advances in digital film and other technology have also helped lower the exposure rate.
Today’s standard 4-film bitewing x-ray produces about four days worth of what we receive on average from normal background radiation, so the health risk is quite negligible. The benefit, on the other hand, is much greater — the early detection of tooth decay could ultimately save a tooth.