Posts for: November, 2020
As far as your appearance goes, the most important teeth you have are those in the “smile zone.” These are the teeth most visible when you smile—and the ones that awkwardly stand out if they're chipped, worn or otherwise flawed. More than any other teeth, they determine how inviting your smile is to others.
You might think you'll need extensive cosmetic dental work to fix these kinds of dental defects. But that may not be necessary: We may be able to use a dental material known as composite resin to repair the defects in your “smile zone” teeth in one office visit.
Composite resins are a combination of ceramics and plastics that have been around for some time. They've only recently come into wide use, though, with the development of new techniques to bond them to tooth surfaces. They're ideal for chips, cracks, or decayed areas where front teeth make contact with one another. They may also be used occasionally to reshape irregular or misaligned teeth.
You'll first need a complete dental examination to determine if composite resin bonding is an appropriate approach for your situation. If so, we'll begin by preparing the tooth surface to better accept the resin material. We'll then apply the liquid form of the material in layers, along with other agents to increase the material's strength. Each layer is cured (hardened) before applying the next layer.
As the layers build up, we shape the material to achieve a normal tooth appearance. We'll also incorporate your individual color shadings, so that the prepared tooth blends well with surrounding natural teeth. In effect, the procedure requires as much artistry as technical skill to create a natural look.
Though not as strong as porcelain veneers or crowns, composite resins are durable if not subjected to heavy biting forces. And for a few hours in the dentist's chair with minimal tooth preparation, a composite resin treatment can create a dramatic and exciting change in your appearance.
If you would like more information on composite resin bonding, 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 “Artistic Repair of Front Teeth With Composite Resin.”
For over half a century now, community water systems have been adding fluoride to drinking water to help reduce the risk of tooth decay. Numerous long-term studies have demonstrated the soundness of this practice, prompting the U.S. Centers for Disease Control to call water fluoridation one of the ten most effective public health measures of the 20th Century.
In the 1960s, after years of study into the teeth-strengthening effects of fluoride, the U.S. Public Health Service recommended that drinking water utilities add fluoride at a rate of between 0.7 and 1.20 milligrams per liter (mg/L) or parts per million (ppm) of water. This recommendation held fast until 2015 when the service changed the recommendation to no more than 0.7 mg/L.
Why the change to guidelines that had been in place for over fifty years? The revision was in response to an increasing occurrence of dental fluorosis. This condition happens when the teeth absorb more fluoride than necessary, leading to discoloration of the surface enamel, creating effects like small white spots or brownish “mottling.”
Dental fluorosis is the only known health condition caused by fluoride. As such, it doesn't damage the tooth itself, and is mainly a cosmetic problem. But it can still be avoided if fluoride intake is kept at moderate levels.
The original recommendation was sound science when first introduced. Since then, though, the prevalence of fluoride in everyday life has grown, with the chemical commonly found in dental care products like toothpastes or mouthrinses, as well as many processed foods and beverages and even infant formula. Our society's overall intake of fluoride has been growing as a result.
The new recommendation came after several years of research to verify water fluoridation levels of 0.7 mg/L would still be effective in the fight against tooth decay while lowering the risk of dental fluorosis. With this adjustment, this important and safe measure for keeping your family's teeth protected against disease is safer than ever.
Ever have a paper cut or an irritated hangnail? They're not considered major health problems, but, boy, can they sting!
Something similar can occur in the corners of your mouth called angular cheilitis. It's also known as perleche, from the French word “to lick” (a common habit with this type of sore). It can occur at any age, with children or young adults developing it from drooling during sleep or orthodontic treatment.
Older adults, though, are more prone than younger people for a variety of reasons. Age-related wrinkling is a major factor, especially “marionette lines” that run from the mouth to the chin. Dried or thinned out skin due to exposure from cold, windy weather may also contribute to perleche.
Perleche can also develop from within the mouth, particularly if a person is experiencing restricted salivary flow leading to reduced lubrication around the lips. Poorly cleaned dentures, weakened facial supporting structure due to missing teeth, vitamin deficiencies and some systemic diseases can all lead to perleche. And if an oral yeast infection occurs around the cracked mouth corners, the irritation can worsen and prolong the healing process.
To clear up a case of cracked mouth corners, you should promptly see your dentist for treatment. Treatment will typically include some form of antifungal ointment or lozenge applied over a few days to clear up the sores and prevent or stop any infection. You might also need to apply a steroid ointment for inflammation and other ointments to facilitate healing.
To prevent future episodes, your dentist may ask you to use a chlorhexidine mouthrinse to curb yeast growth. If you wear dentures, you'll need to adopt a regular cleaning routine (as well as leaving them out at night). You might also wish to consider updated dental restorations or orthodontics to improve dental support, and help from a dermatologist if wrinkling might be a potential cause.
Cracked mouth corners won't harm you, but they can make for a miserable experience. Take steps to relieve the irritation and any future occurrence.
If you would like more information on angular cheilitis or similar oral conditions, 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.”