Posts for: August, 2018
We’ve all had physical ailments that were more irritating than serious. The problem of skin cracking at the corners of the mouth fits into that category.
Both dentists and dermatologists encounter this condition often and have a name for it: perleche, derived from the French word lecher, meaning “to lick.” The term arises from patients’ tendency to excessively lick the broken skin to soothe the itching or burning.
Perleche most often arises from certain mouth conditions, although systemic problems like anemia or diabetes may also cause it. Children or younger adults, especially those with orthodontic braces or a tendency to drool as they sleep, often develop perleche; older adults with wrinkling around the mouth are also susceptible. Mouth dryness caused by reduced saliva flow may also irritate the skin and cause discomfort.
As the skin becomes irritated, the person may begin to lick the corners of the mouth to soothe them. This sets up conditions for an infection, most often caused by yeast known as candida albicans. The infection may become more acute and begin to affect the entire inside of the mouth or throat.
If you’ve developed perleche, our primary treatment goal is to reduce any infection with the aid of oral or topical antifungal drugs. One drug, Nystatin, is often taken as a lozenge that dissolves in the mouth and works its way from there through the rest of the body. You can also apply antifungal ointments several times a day to the corners of the mouth, often in combination with steroid ointments that reduce redness and swelling. You can also apply antifungal zinc oxide paste to the cracked skin, which also serves as a barrier between the skin and outer contaminants.
To reduce the chance of future outbreaks, we may recommend you rinse with Chlorhexidine, as well as replace missing teeth or refit loose dentures — these too are contributing factors to erupting yeast infections. You might also need to undergo dermatologic treatment for wrinkles if they’ve proven to be a factor in developing perleche.
Although not a major problem, perleche can be exceedingly uncomfortable and embarrassing. Thanks to a number of treatment options, you don’t have to put up with that discomfort for long.
If you would like more information on perleche (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 magazine article “Cracked Corners of the Mouth.”
On the big screen, Australian-born actress Margot Robbie may be best known for playing devil-may-care anti-heroes—like Suicide Squad member Harley Quinn and notorious figure skater Tonya Harding. But recently, a discussion of her role in Peter Rabbit proved that in real life, she’s making healthier choices. When asked whether it was hard to voice a character with a speech impediment, she revealed that she wears retainers in her mouth at night, which gives her a noticeable lisp.
“I actually have two retainers,” she explained, “one for my bottom teeth which is for grinding my teeth, and one for my top teeth which is just so my teeth don't move.”
Clearly Robbie is serious about protecting her dazzling smile. And she has good reasons for wearing both of those retainers. So first, let’s talk about retainers for teeth grinding.
Also called bruxism, teeth grinding affects around 10 percent of adults at one time or another, and is often associated with stress. If you wake up with headaches, sore teeth or irritated gums, or your sleeping partner complains of grinding noises at night, you may be suffering from nighttime teeth grinding without even being aware of it.
A type of retainer called an occlusal guard is frequently recommended to alleviate the symptoms of bruxism. Typically made of plastic, this appliance fits comfortably over your teeth and prevents them from being damaged when they rub against each other. In combination with stress reduction techniques and other conservative treatments, it’s often the best way to manage teeth grinding.
Orthodontic retainers are also well-established treatment devices. While appliances like braces or aligners cause teeth to move into better positions, retainers are designed to keep teeth from moving—helping them to stay in those positions. After active orthodontic treatment, a period of retention is needed to allow the bite to stabilize. Otherwise, the teeth can drift right back to their old locations, undoing the time and effort of orthodontic treatment.
So Robbie has the right idea there too. However, for those who don’t relish the idea of wearing a plastic appliance, it’s often possible to bond a wire retainer to the back surfaces of the teeth, where it’s invisible. No matter which kind you choose, wearing a retainer can help keep your smile looking great for many years to come.
If you have questions about teeth grinding or orthodontic retainers, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Teeth Grinding” and “The Importance of Orthodontic Retainers.”
The dental implant is the closest thing in modern dentistry to a natural tooth. This is because an implant replaces more than the visible crown — it also replaces the root, thanks to a metal post imbedded in the bone.
But what if you have a metal allergy — are you out of luck replacing a tooth with an implant? Before answering this question, let's take a closer look at metal allergies.
An allergy is an overreaction of the body's immune system to a particular foreign substance. This response can be as inconsequential as a minor rash or as life-threatening as a shutdown of the body's organ systems. You can be allergic to anything, including metals.
Usually, these allergies are to specific kinds of metals. For example, about 17% of women and 3% of men are allergic to nickel, while smaller percentages are allergic to cobalt or chromium. Most allergic reactions to metal occur from external contact with jewelry or similar metal items that create rashes or other anomalies on the skin. On a more serious note, an allergy to metal in a body replacement part could result in the body rejecting it.
Metals have also played an important role in dental care, particularly dental amalgam used for tooth fillings. Dental amalgam is a mixture of a precious metal like gold or silver with other metals like copper, tin and, in small amounts, mercury. While dental amalgam has been used safely for decades, there have been rare cases of inflammation or rashes.
This brings us to dental implants and the most common metal used in them, titanium. The commercial version of this metal is highly prized in medical and dental applications because it has a special affinity with bone. Bone cells readily grow and adhere to the metal, which strengthens the bond between the implant and the jawbone.
Even if you have a rare allergy to certain metals, it's even rarer that would include titanium. In one particular study of 1,500 implant patients less than 1% reported any reaction at all.
If you're concerned, you can undergo testing to see if you react to titanium. More than likely, though, you'll be able to join the millions of other patients who have successfully restored their smiles with dental implants.
If you would like more information on dental implants as a tooth replacement option, 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 “Metal Allergies to Dental implants.”