Gregory E. Oxford, DDS, MS, PhD  &  Isabell G. Oxford, DMD
100 Whetstone Place, Suite 308, St. Augustine, FL 32086  (904) 810-2345

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By Oxford Dental Associates
March 06, 2021
Category: Oral Health
Tags: osteoporosis  
CertainDrugsforOsteoporosisCouldImpactYourDentalCare

Osteoporosis is a serious bone weakening disease in older adults that can turn a minor fall into a major bone fracture. But the condition could also impact dental treatment—triggered ironically by the drugs used to treat osteoporosis rather than the disease itself.

From the Latin for “porous bone,” osteoporosis causes bone to gradually lose mineral structure. Over time the naturally-occurring spaces between mineralized portions of the bone enlarge, leaving it weaker as a result.

Although there's no definitive cure for osteoporosis, a number of drugs developed over the last couple of decades can inhibit its progress. Most fall into two major categories, bisphosphonates and RANKL inhibitors.

These drugs work by inhibiting the normal growth cycle of bone. Living bone constantly changes as cells called osteoblasts produce new bone. A different type, osteoclasts, clear away older bone to make room for these newer cells. The drugs selectively destroy osteoclasts so that the older bone, which would have been removed by them, remains for a longer period of time.

Retaining older cells longer initially slows the disease process. But there is a downside: in time, this older bone kept in place continues to weaken and lose vitality. In rare instances it may eventually become detached from its blood supply and die, resulting in what is known as osteonecrosis.

Osteonecrosis mostly affects two particular bones in the body: the femur (the long bone in the upper leg) and the jawbone. In regard to the latter, even the stress of chewing could cause osteonecrosis in someone being treated for osteoporosis. It can also occur after tooth extractions or similar invasive procedures.

If you're taking a bisphosphonate or RANKL inhibitor, you'll want to inform your dentist so that the necessary precautions can be taken before undergoing dental work more invasive than routine cleanings or getting a filling or crown.  If you need major dental work, your dentist or you will also need to speak with your physician about stopping the drug for a few months before and after a dental procedure to minimize the risk of osteonecrosis.

Fortunately, the risk for dental problems while undergoing treatment for osteoporosis is fairly low. Still, you'll want to be as prepared as possible so that the management of your osteoporosis doesn't harm your dental health.

If you would like more information on osteoporosis and dental 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 “Osteoporosis Drugs & Dental Treatment.”

By Oxford Dental Associates
February 24, 2021
Category: Dental Procedures
HowAFVsAlfonsoRibeiroSavedHisTooth

Remembered fondly by fans as the wacky but loveable Carlton on The Fresh Prince of Bel-Air, Alfonso Ribeiro is currently in his fifth year hosting America's Funniest Videos. It's the perfect gig for the 48-year-old actor, who loves to laugh and make others laugh as well. This is quite the opposite experience from one he had a few years ago that he remembers all too well: a severely decayed tooth.

After seeing his dentist for an intense toothache, Ribeiro learned he had advanced tooth decay and would need root canal treatment. Ribeiro wasn't thrilled by the news. Like many of us, he thought the procedure would be unpleasant. But he found afterward that not only was the root canal painless, his toothache had vanished.

More importantly, the root canal treatment saved his tooth, as it has for millions of others over the last century. If you're facing a situation similar to Alfonso Ribeiro's, here's a quick look at the procedure that could rescue your endangered tooth.

Getting ready. In preparation for root canal therapy, the tooth and surrounding gums are numbed, often first with a swab of local anesthesia to deaden the surface area in preparation for the injection of the main anesthesia below the surface. A dental dam is then placed to isolate the infected tooth from its neighbors to prevent cross-contamination.

Accessing the interior. To get to the infection, a small access hole is drilled. The location depends on the tooth: in larger back teeth, a hole is drilled through the biting surface, and in front teeth, a hole is drilled on the backside. This access allows us to insert special tools to accomplish the next steps in the procedure.

Cleaning, shaping and filling. Small tools are used to remove the diseased tissue from the interior tooth pulp and root canals. Then the empty spaces are disinfected. This, in effect, stops the infection. Next, the root canals inside the tooth are shaped to allow them to better accept a special filling called gutta percha. The access hole is then sealed to further protect the tooth from future infection, and a temporary crown is placed.

A new crown to boot. Within a couple weeks, we'll cap the tooth with a long-lasting lifelike crown (or a filling on certain teeth). This adds further protection for the tooth against infection, helps strengthen the tooth's structure, and restores the tooth's appearance.

Without this procedure, the chances of a tooth surviving this level of advanced decay are very slim. But undergoing a root canal, as Alfonso Ribeiro did, can give your tooth a real fighting chance.

If you would like more information about root canal treatments, please contact us or schedule a consultation. To learn more, read the Dear Doctor magazine articles “A Step-By-Step Guide to Root Canal Treatment” and “Root Canal Treatment: How Long Will It Last?

By Oxford Dental Associates
February 14, 2021
Category: Dental Procedures
Tags: dental implants  
HowLongIstheImplantProcessItDependsonYourBoneHealth

If you're thinking about getting dental implants, you may be curious about how long it might take. The answer depends on the health of your supporting bone.

Bone is an integral part of implant functionality as bone cells gradually grow and adhere to the newly placed implant to give it its characteristic strength. The implant also requires an adequate amount of bone to accurately position it for the best appearance outcome.

If the bone is sufficient and healthy, we can proceed with the surgical placement of the implant. The most common practice following surgery is to allow a few weeks for the bone integration described previously to take place before finally attaching the crown. With an alternative known as a “tooth in one day” procedure, we install a crown right after surgery, which gives you a full smile when you leave.

There's one caveat to this latter method, though—because the implant still requires bone integration, this immediate crown is temporary. It's designed to receive no pressure from biting or chewing, which could damage the still integrating implant. We'll install the permanent crown after the implant and bone have had time to fully mesh.

So, if your supporting bone is sound, the complete implant process may only take a few weeks. But what if it's not—what if you've lost bone and don't have enough to support an implant? In that case, the length of process time depends on the severity of the bone loss and if we're able to overcome it. In some cases, we can't, which means we'll need to consider a different restoration.

But it's often possible to regenerate lost bone by grafting bone material at the implant site. If the bone loss is moderate, it may take 2 to 4 months of regrowth after grafting before we can perform implant surgery. If it's more significant or there's disease damage to the socket, it may take longer, usually 4 to 6 months. It largely depends on the rate of bone regeneration.

In a nutshell, then, the health of your jaw's supporting bone has a lot to do with whether the implant process will take a few weeks or a few months. Regardless of the time, though, you'll gain the same result—new, functional teeth and a more attractive smile.

If you would like more information on dental implant restorations, 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 “Implant Timelines for Replacing Missing Teeth.”

By Oxford Dental Associates
February 04, 2021
Category: Oral Health
Tags: gum disease  
LoveYourHeartLoveYourGums

This month there are hearts everywhere we look, so it's fitting that February is designated as American Heart Month. We join with the American Heart Association in the goal of spreading awareness of cardiovascular disease, the top cause of death around the world. And while we think about our heart health, let's talk about the connection between cardiovascular health and oral health.

Cardiovascular disease includes heart disease, high blood pressure and cerebrovascular disease (involving the blood vessels of the brain)—in short, diseases of the circulatory system that can lead to heart attacks and strokes. Periodontal disease, in contrast, attacks the gums and other tissues that hold the teeth in place. The two conditions, however, have more in common than you might think.

Both periodontal (gum) disease and cardiovascular disease are chronic and progressive, and both are linked to inflammation. Periodontal disease and cardiovascular disease share certain inflammation markers detected in the blood that can damage blood vessels. Furthermore, specific types of oral bacteria associated with periodontal disease have been found in plaque that builds up inside of blood vessels, constricting blood flow.

People with gum disease are twice as likely to have cardiovascular disease, and studies show that having advanced gum disease worsens existing heart conditions, increases the chances of having a stroke, and raises the risk of having a first heart attack by 28%. Untreated gum disease also makes hypertension (known as “the silent killer”) worse.

However, here's some encouraging news: Intensive treatment for gum disease was shown to result in significantly lower blood pressure. So, as you think about what you can do to take care of your heart health and overall health, don't forget your gums. Here are some tips:

Maintain a dedicated oral hygiene routine. A daily oral hygiene habit that includes brushing twice a day and flossing once a day is the best thing you can do to ward off gum disease.

Visit our office for regular dental checkups. Regular dental cleanings and checkups can keep you in the best oral health. Even with daily brushing and flossing, professional cleanings are needed to remove plaque and tartar from places a toothbrush can't reach, and regular checkups allow us to detect developing problems early.

Eat for good overall health. People who consume less sugar tend to have healthier teeth and gums as well as better overall health. An “anti-inflammatory diet” that is low in sugar and other refined carbohydrates and rich in whole grains, fiber and healthy fats can reduce inflammation throughout your body—and has been shown to greatly improve gum disease.

As a former Surgeon General once wrote, “You can't have general health without oral health.” So celebrate this month of hearts by showing love to your heart and your gums.

If you have questions about how to maintain good oral health, call us or schedule a consultation. You can learn more in the Dear Doctor magazine article “Good Oral Health Leads to Better Health Overall.”

By Oxford Dental Associates
January 25, 2021
Category: Dental Procedures
TopicalFluorideCouldBoostYourChildsAvoidanceofToothDecay

Tooth decay is perhaps the biggest danger your child's teeth can face. Not only can it rob them of primary teeth now, but the loss of teeth at this early age could also lead to future bite problems.

That's why it's important to reduce the risk of tooth decay through daily brushing and flossing and regular dental cleanings. You child may also benefit from another measure that enhances those other hygiene efforts—topical fluoride applied directly to tooth surfaces.

Fluoride is a naturally occurring chemical that's been demonstrated to strengthen tooth enamel against contact with acid, the main cause of tooth decay. Today, fluoride is added not only to toothpastes and other dental hygiene products, but also in minute amounts to drinking water supplies across the country.

Even if your child takes in fluoride through one or more of these sources, there may still be a benefit to a topical application. For one, topical applications are usually stronger than fluoride toothpaste or fluoridated water supplies and can have greater effect. And because fluoridated water is ingested first before traveling through the bloodstream to the teeth, directly applied fluoride can strengthen them much faster.

But are these stronger concentrations of topical fluoride safe? Studies have shown no long-term health risk, but there can be temporary side effects like stomach pain, vomiting or headaches if the patient accidently swallows too much of the solution during the application. These side effects, however, can be minimized through safety measures dentists put in place during the procedure.

One study by the Cochrane Oral Health Research Group seems to show that the long-term benefit of topical fluoride is well worth this minor risk of side effects. After reviewing several scientific studies involving thousands of patients, the group found an overall 28% reduction in decayed, filled or missing teeth over a number of years among those who received a topical fluoride treatment.

Because of these and other forms of evidence, fluoride applications in either gel, foam or varnish forms have become a routine part of preventive care for children. Discussing it with your dentist, you may find it could be an extra weapon for your child in fighting tooth decay.

If you would like more information on how to protect your child's teeth from decay, 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 “Fluoride Gels Reduce Decay.”





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