Posts for: May, 2018
Eating disorders cause more than psychological harm. The binge-purge cycle of bulimia or the self-starvation patterns of anorexia can also injure the physical body, especially the mouth.
For example, nine in ten people with bulimia will experience tooth enamel erosion from stomach acid entering the mouth from induced vomiting. Although purging is less frequent with anorexic patients, one in five will also develop erosion.
An eating disorder isn't the only reason for enamel erosion: you can have high acid levels from over-consuming sodas, energy drinks or certain foods, or not properly brushing and flossing every day. But erosion related to an eating disorder does produce a distinct pattern in the teeth. When a person vomits, the tongue moves forward and presses against the bottom teeth, which somewhat shields them from acid contact. This can create less erosion in the lower front teeth than in others.
Eating disorders can cause other oral effects. Stomach acid contact can eventually burn and damage the mouth's soft tissues. The salivary glands may become enlarged and cause puffiness along the sides of the face. The use of fingers or other objects to induce gagging can injure and redden the back of the throat, the tongue and other soft tissues.
It's important to stop or at least slow the damage as soon as possible. To do so requires both a short– and long-term strategy. In the short-term, we want to neutralize mouth acid as soon as possible after it enters the mouth, especially after purging. Rather than brushing, it's better to rinse out the mouth with water or with a little added baking soda to neutralize the acid. This will at least help reduce the potential damage to enamel.
In the long-term, though, we need to address the disorder itself for the sake of both the person's overall well-being and their oral health. You can speak with us or your family physician about options for counseling and therapy to overcome an eating disorder. You may also find it helpful to visit the website for the National Eating Disorders Association (nationaleatingdisorders.org) for information and a referral network.
If you would like more information on how eating disorders can affect 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 “Bulimia, Anorexia & Oral Health.”
For generations, dentures have helped people avoid the dire consequences of total teeth loss. Now, implant technology is making them even better.
Composed of life-like prosthetic teeth fixed within a plastic or resin gum-colored base, dentures are manufactured to fit an individual patient’s mouth for maximum fit, comfort and performance. But dentures also have a critical drawback—they can’t stop bone loss in the jaw.
Bone is constantly regenerating as older cells dissolve and then are replaced by newer cells. In the jawbone, the forces generated when we chew travel through the teeth to the bone and help stimulate this new cell growth. When teeth are missing, though, the bone doesn’t receive this stimulus and may not regenerate at a healthy rate, resulting in gradual bone loss.
Dentures can’t transmit this chewing stimulus to the bone. In fact, the pressure they produce as they rest on top of the gums may actually accelerate bone loss. Over time then, a denture’s once secure and comfortable fit becomes loose.
In the past, most patients with loose dentures have had them relined with new dental material to improve fit, or have new dentures created to conform to the changed contours of the jaws. But implant technology now offers another alternative.
Implants are in essence a tooth root replacement. Dentists surgically implant a titanium metal post directly into the jawbone that naturally attracts bone cells to grow and adhere to it over time (a process called osseointegration). This not only creates a secure and lasting hold, it can also stop or even reverse bone loss.
Most people know implants as single tooth replacements with a porcelain crown attached to the titanium post. But a few strategically placed implants can also support either removable or fixed dentures. Removable dentures (also called overdentures) usually need only 3 or 4 implants on the top jaw and 2 on the bottom jaw for support through built-in connectors in the dentures that attach to the implants. A fixed bridge may require 4-6 implants to which they are permanently attached.
There are pros and cons for each of these options and they’re both more expensive than traditional dentures. In the long run, though, implant-supported dentures could be more beneficial for your bone health and hold their fit longer.
Mention “bacteria” and people begin looking for the germicide. The truth is, though, only a few strains cause disease — the rest are benign or even play a beneficial role.
This may shock you, but your body both inside and out is home to around 100 trillion single-celled organisms, exceeding the number of your native cells by 10 to 1. You won't notice them, though: bacteria are so small they only make up 1 to 3% of your total body mass. And each of us has a unique “microbiome” of micro-organisms: they influence a variety of processes like digestion and metabolism, and some even “teach” our immune systems to distinguish between helpful and harmful bacteria.
Of the 10,000 or more species of bacteria that inhabit the body, perhaps the most studied and understood are in the mouth. We even have a database that catalogs the gene sequences of oral bacteria. And what we've learned has enlarged our understanding of dental disease and how to prevent or treat it.
This new knowledge, for example, confirms that many of our modern lifestyle habits adversely affect oral health. For example, researchers have found higher concentrations of Streptococcus mutans, the bacteria most responsible for tooth decay, in current samples of biofilm than in those from preindustrial eras. The culprit seems to be the modern diet rich with carbohydrates like sugar that bacteria eat. Cigarette smoking can also make the mouth friendlier to disease-causing bacteria.
On the bright side, our growing knowledge of oral bacteria is helping us devise better prevention and treatment strategies. One example is the use of antibiotics to reduce the populations of disease-causing oral bacteria.
The broad, traditional approach kills not only malevolent bacteria, but beneficial strains as well. The approach may also be helping bad bacteria become resistant to common antibiotics. A newer approach targets specific bacteria with custom-designed antibiotics that won't kill other bacteria. There's also increased focus on ways to re-balance a person's normal microbiome if it's become skewed.
As we come to understand bacteria better — both good and bad species — these and other dental care efforts will benefit. With our increasing knowledge of these microorganisms that surround us the future looks bright for better oral health.
If you would like more information on the role of bacteria in oral 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 “New Research Shows Bacteria Essential to Health.”