Posts for: April, 2020
The final emergence of permanent teeth in late adolescence marks the end of a long process beginning in the womb with the formation of our primary or “baby” teeth. Permanent teeth form in a similar way as buds high in the jaw, continuing to grow until the primary teeth ahead of them fall away. The crowns of the new adult teeth eventually break through the gum tissue and emerge (erupt) into view.
At least, that’s normally what should happen; sometimes, though, a tooth may only erupt partially or not at all, a condition known as impaction. The crown remains partially or fully submerged below the gum line, causing the tooth to press against other teeth, potentially damaging them. It can also make periodontal (gum) tissues adjacent to the area more susceptible to disease. Wisdom teeth are especially prone to this kind of impaction, to the extent they’re often surgically removed (extracted) to avoid future problems to adjacent teeth or the bite.
Upper canines (the “eye teeth” normally located directly below the eyes) are also subject to impaction. But because of their highly visible position, extracting them could have an adverse impact on the patient’s smile. In this case, we often attempt instead to expose and ultimately save the tooth.
Before taking any action, however, an orthodontic examination is conducted first to pinpoint the exact position of the impacted tooth and determine how that position might affect moving teeth into a more desired alignment. If we find the impacted canine is in a workable position, the next step is to surgically uncover the tooth from the gum tissue (a minor procedure usually performed by an oral surgeon or periodontist). Once exposed, an orthodontic bracket with a small attached gold chain is bonded to the tooth. The gums are then sutured back into place with the chain exposed and allowed to heal.
At some future point an orthodontist will attach the chain to orthodontic hardware that will pull the impacted tooth into proper position over several months. As a result, the upper canine becomes “un-impacted”; the dangers to surrounding teeth and tissues are also reduced. And, just as important, we can preserve the tooth and with orthodontics achieve an attractive, normal smile.
If you would like more information on the effects and treatment of impacted teeth, 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 “Exposing Impacted Canines.”
An estimated 50,000 Americans are expected to be diagnosed this year with some form of oral cancer. Five years from now, if current survival rates still apply (57%), a little more than half will still be alive. That's why the Oral Cancer Foundation designates each April as Oral Cancer Awareness Month to call attention to this serious disease, and what you can do to lower your risk of contracting it.
Oral cancer has one of the lowest survival rates among known cancers, mainly because it easily goes undetected until its later stages when known treatments aren't as effective. Patients don't always have overt symptoms or they mistake cancerous lesions for everyday mouth sores. On the other hand, early detection and treatment dramatically improve survivability.
Here are some things you can do to reduce your risk for oral cancer or improve your odds for early detection.
Don't use tobacco. If you're a smoker, you're five to nine times more likely to develop oral cancer than a non-smoker. Using smokeless snuff or chewing tobacco is also risky—four times the risk of non-users. And preliminary evidence suggests that e-cigarettes increase the risk of cancer as well.
Make better food choices. A diet heavy in processed foods, especially nitrites used in curing meats and other products, can damage cellular DNA and lead to cancer. On the other hand, natural foods like fresh fruits and vegetables contain nutrients that lower cancer risk. A nutritious diet also contributes to healthier teeth and gums.
Practice safer sex. While older adults have traditionally accounted for most oral cancer cases, there has been a recent, unsettling rise among younger people. Most researchers tie this to the Human Papilloma Virus (HPV 16), which is sexually transmitted. You can reduce your risk for contracting HPV 16 and subsequent oral cancer by following safe sex practices.
Undergo oral cancer screenings. Your semi-annual dental visits to clean your teeth are also a prime opportunity to check for oral abnormalities, especially if you're older. During an oral cancer screening we visually inspect your face, neck, lips and the inside of your mouth for any suspicious sores or discolorations. Early detection leads to better outcomes.
You should also modify your alcohol consumption—moderate to heavy drinkers have three to nine times greater risk for oral cancer than light or non-drinkers. And, you can further lower your risk of lip cancers by limiting your exposure to the sun and wearing protective sunscreen.
Oral cancer is a dangerous condition that could threaten your life. Regular dental care and healthy lifestyle practices can help lower your risk for encountering this deadly disease.
If you know anything about dental disease, then you know bacteria ranks high on the Usual Suspects list. Tooth decay gets its start from acid produced by bacteria; periodontal (gum) disease is often triggered by bacteria that infect the gums.
But the particular strains of bacteria that can cause dental disease are a small percentage of the 10,000-plus species inhabiting your mouth. The rest, numbering in the millions, are fairly benign—and some, as recent research is now showing, play a sizeable role in protecting your teeth and gums against other malicious bacteria, fungi and viruses.
Dr. Aaron Weinberg, a dental researcher at Case Western Reserve University, has been investigating these protective bacteria for many years. His research began with a scientific conundrum: although the mouth has one of the highest densities of bacterial populations, wounds in the mouth tend to heal quickly.
The answer, he believes, originates with human beta defensins (hBDs), substances produced by cells in the lining of the mouth that are natural antibiotics against disease. He has found that certain bacteria actually help stimulate their production.
This isn't just an interesting fact about the body's defenses and immune system. During his research, Dr. Weinberg was able to identify the agent within the bacteria that triggered hBD production. This has opened up a new line of research: The possibility that harnessing this agent might help assist in our treatment of infection by boosting the body's defensive capabilities.
For example, researchers have proposed including a form of the agent in toothpaste. Over time, this might stimulate hBD production and guard the mouth against the development of dental diseases like gum disease.
These possibilities all come from our increasing knowledge and understanding of the microscopic world around us, especially in our mouths. Bacteria are much more complex than we may have realized—not all are our enemies, and some are definitely our friends. Learning more may open up new ways to keep our teeth and gums healthy.
Thanks to treatments like chemotherapy and radiation, your chances of surviving cancer are greater than ever. These treatments, however, often produce unwelcome side effects. Treating throat or oral cancer, for example, could damage your mouth's salivary glands or bone.
Saliva is essential to oral health, providing antibodies to curb the growth of disease-causing bacteria and neutralizing acid, which can erode enamel. But salivary glands damaged during cancer treatment may not be able to produce enough saliva. The resulting “dry mouth” creates an environment conducive to bacterial growth and elevated acid levels.
You can help reduce the effects of dry mouth during your treatment (and after, if the damage is permanent) by drinking more water or by using substances that stimulate saliva. Cutting back on acidic foods and beverages will also help lower your mouth's acidity. And be sure to keep up daily oral hygiene and regular dental visits.
The more ominous threat to oral health during cancer treatment, though, is osteoradionecrosis. This occurs when radiation targets specific areas of bone. The bone can lose blood supply and living cellular tissue, which inhibit its ability to heal or replenish itself. If this occurs in the jawbone of teeth that may be lost, the bone tissue could be adversely affected during healing.
Depending on your treatment needs, your risk for osteoradionecrosis might be unavoidable if teeth are to be lost. It's important we discuss that risk because it could impact future dental treatment. In the worst case, before cancer treatment, we may not be able to save affected teeth and your restorative options might be limited.
If your risk of osteoradionecrosis is minimal, though, we may be able to restore any resulting damaged or missing teeth with a wide range of options like dental implants or crowns before or after your cancer treatment.
As with other aspects of health, taking care of your teeth and gums while undergoing cancer treatment can be challenging; some problems may be unavoidable. But with a proper dental treatment plan during and after chemotherapy and radiation, we can minimize those problems and help to eventually restore your smile.
Chronic jaw pain can be an unnerving experience that drains the joy out of life. And because of the difficulty in controlling it patients desperate for relief may tread into less-tested treatment waters.
Temporomandibular disorders (TMDs) are a group of conditions affecting the joints connecting the lower jaw to the skull and their associated muscles and tendons. The exact causes are difficult to pinpoint, but stress, hormones or teeth grinding habits all seem to be critical factors for TMD.
The most common way to treat TMD is with therapies used for other joint-related problems, like exercise, thermal (hot and cold) applications, physical therapy or medication. Patients can also make diet changes to ease jaw function or, if appropriate, wear a night guard to reduce teeth grinding.
These conservative, non-invasive therapies seem to provide the widest relief for the most people. But this approach may have limited success with some patients, causing them to consider a more radical treatment path like jaw surgery. Unfortunately, surgical results haven't been as impressive as the traditional approach.
In recent years, another treatment candidate has emerged outside of traditional physical therapy, but also not as invasive as surgery: Botox injections. Botox is a drug containing botulinum toxin type A, which can cause muscle paralysis. Mostly used in tiny doses to cosmetically soften wrinkles, Botox injections have been proposed to paralyze certain jaw muscles to ease TMD symptoms.
Although this sounds like a plausible approach, Botox injections have some issues that should give prospective patients pause. First, Botox can only relieve symptoms temporarily, requiring repeated injections with increasingly stronger doses. Injection sites can become painful, bruised or swollen, and patients can suffer headaches. At worst, muscles that are repeatedly paralyzed may atrophy, causing among other things facial deformity.
The most troubling issue, though, is a lack of strong evidence (outside of a few anecdotal accounts) that Botox injections can effectively relieve TMD symptoms. As such, the federal Food and Drug Administration (FDA) has yet to approve its use for TMD treatment.
The treatment route most promising for managing TMD remains traditional physical and drug therapies, coupled with diet and lifestyle changes. It can be a long process of trial and error, but your chances for true jaw pain relief are most likely down this well-attested road.
If you would like more information on treating jaw disorders, 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 “Botox Treatment for TMJ Pain.”