Posts for: January, 2020
Besides their life-likeness, implants are also prized for their high success rate. More than ninety-five percent of implants continue to function effectively after ten years.
Implants’ advanced technology explains some of their reliability and longevity—they’re as close to natural teeth as we’re now able to achieve. But their impressive success rate also owes to the detailed protocols that dentists follow to install them. One critical part of these protocols is ensuring a patient has enough bone in their jaw to support and precisely situate the implant for the best functional and aesthetic outcome.
Unfortunately, there are situations where a patient doesn’t have enough bone to achieve a satisfactory result. This often happens if there’s been months or years between losing the tooth and considering an implant. The reason why relates to the nature of bone as living tissue.
Like other cellular tissues in the body, bone has a life cycle: Older, worn-out cells die and are absorbed by the body, and new cells form to replace them. The growth cycle in the jaw receives stimulation from the forces generated when we chew, which travel up through the teeth to the bone.
However, this stimulation stops after tooth loss for the related area of bone, which can slow new bone growth. Over time, the volume and density of the bone around a missing tooth gradually decreases, enough eventually to make an implant impractical.
Insufficient bone volume, though, doesn’t necessarily mean an implant is out of the question. We may be able to address the problem by attempting to regenerate the bone through grafting. This is a procedure in which we insert graft material into the affected area of the jawbone. The graft then becomes a scaffold upon which bone cells can grow. After several months, we may have enough regenerated bone to support an implant.
If there’s been too much bone loss, we may still need to consider another form of restoration. But if we can successfully build up the bone around your missing tooth, this premier restoration for replacing lost teeth could become a reality for you.
Bright, naturally white teeth are a key component in a beautiful smile. But the opposite is also true: nothing diminishes an otherwise attractive smile more than stained or discolored teeth.
There is good news, however, about tooth staining: it can be greatly reduced with the right whitening technique. But before taking action we need to first uncover the cause for the staining — whether from the outside or inside of the tooth, or a combination of both.
If it’s an external cause — known as extrinsic staining — our diet is usually the source. Foods and beverages that contain tannins, like red wine, coffee or tea fall in this category, as do foods with pigments called carotenes as found in carrots and oranges. Besides limiting consumption of stain-causing foods and maintaining daily oral hygiene, you can also diminish extrinsic staining with a bleaching application.
There are two basic ways to approach this: with either a professional application at our office or with a home kit purchased at a pharmacy or retail store. Although both types use similar chemicals, the professional application is usually stronger and the whitening effect is obtained quicker and may last longer.
Discoloration can also occur within a tooth, known as intrinsic staining, and for various reasons. It can occur during tooth development, as with childhood overexposure to fluoride or from the antibiotic tetracycline. Poor development of enamel or dentin (the main sources of natural tooth color), tooth decay, root canal treatments or trauma are also common causes of intrinsic discoloration.
There are techniques to reduce the effects of intrinsic staining, such as placing a bleaching agent inside the tooth following a root canal treatment. In some cases, the best approach may be to restore the tooth with a crown or porcelain veneer. The latter choice is a thin layer of dental material that is permanently bonded to the outer, visible portion of the tooth: it’s life-like color and appearance covers the discoloration, effectively renewing the person’s smile.
If you’ve been embarrassed by stained teeth, visit us for a complete examination. We’ll recommend the right course of action to turn your dull smile into a bright, attractive one.
If you would like more information on treatments for teeth staining, 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 “Teeth Whitening.”
The reason for extracting a tooth may be all too obvious — the tooth is too decayed or damaged to attempt saving. The reason for extracting a wisdom tooth, on the other hand, may not be so apparent: from the perspective of pain or reduced function, you may not notice a thing. Our recommendation to remove a wisdom tooth is based primarily on what may be occurring out of view below the gum line and its potential threat to adjacent teeth.
Teeth grow and develop below the gum line in the jaw, and then push their way through the gums as they appear in the mouth (eruption). After a normal eruption, the enamel-covered crown is visible above the gum line; the remaining tooth root (about two-thirds of the tooth’s length) resides below the gum line. Because wisdom teeth, or third molars, erupt rather late between ages 17 and 25, they may lack the room to erupt properly due to crowding from other teeth that have already erupted. This can cause the wisdom tooth not to erupt fully through the gums, leaving the crown trapped below the gum line, a condition known as impaction. For the tooth, impaction increases the chances of infection, cyst formation and gum disease around it.
An impacted wisdom tooth can also cause problems for the adjacent teeth as well. The impacted tooth may begin to press against the roots of other teeth; the resulting pressure can damage the other roots, increasing the risk for disease or future tooth loss. A person may not even know they have this problem since there’s often little to no noticeable pain or symptoms.
It may seem counterintuitive, but the best time to remove a wisdom tooth is when it’s not causing immediate problems. There will be, however, signs found during examination (particularly x-rays or CT scan) that future problems are in the making. By extracting an impacted wisdom tooth at the appropriate time, we can avoid more serious problems in the future and improve oral health.
If you would like more information on wisdom teeth and your 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 “Removing Wisdom Teeth.”
Osteoporosis is a major health condition affecting millions of people, mostly women over 50. The disease weakens bone strength to the point that a minor fall or even coughing can result in broken bones. And, in an effort to treat it, some patients might find themselves at higher risk of complications during invasive dental procedures.
Over the years a number of drugs have been used to slow the disease’s progression and help the bone resist fracturing. Two of the most common kinds are bisphosphonates (Fosamax) and RANKL inhibitors (Prolia). They work by eliminating certain bone cells called osteoclasts, which normally break down and eliminate older bone cells to make way for newer cells created by osteoblasts.
By reducing the osteoclast cells, older bone cells live longer, which can reduce the weakening of the bone short-term. But these older cells, which normally wouldn’t survive as long, tend to become brittle and fragile after a few years of taking these drugs.
This may even cause the bone itself to begin dying, a relatively rare condition called osteonecrosis. Besides the femur in the leg, the bone most susceptible to osteonecrosis is the jawbone. This could create complications during oral procedures like jaw surgery or tooth extractions.
For this reason, doctors recommend reevaluating the need for these types of medications after 3-5 years. Dentists further recommend, in conjunction with the physician treating osteoporosis, that a patient take a “drug holiday” from either of these two medications for several months before and after any planned oral surgery or invasive dental procedure.
If you have osteoporosis, you may also want to consider alternatives to bisphosphonates and RANKL inhibitors. New drugs like raloxifene (which may also decrease the risk of breast cancer) and teriparatide work differently than the two more common drugs and may avoid their side effects. Taking supplements of Vitamin D and calcium may also improve bone health. If your physician still recommends bisphosphonates, you might discuss newer versions of the drugs that pose less risk of osteonecrosis.
Managing osteoporosis is often a balancing act between alleviating symptoms of the disease and protecting other aspects of your health. Finding that balance may help you avoid future problems, especially to your dental health.
If you would like more information on osteoporosis and dental care, 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.”
During your latest dental cleaning and checkup, your dentist notices a skin rash around your mouth. You sigh—it’s been going on for some time. And every ointment you’ve tried doesn’t help.
You may have peri-oral dermatitis, a type of skin rash dentists sometime notice during dental treatment. It doesn’t occur often—usually in only 1% of the population—but when it does, it can be resistant to common over-the-counter ointments.
That’s because peri-oral dermatitis is somewhat different from other facial rashes. Often mistaken as acne, the rash can appear as small red bumps, blisters or pus-filled pimples most often around the mouth (but not on the lips), nostrils or even the eyes. Sometimes the rash can sting, itch or burn.
People with peri-oral dermatitis often try medicated ointments to treat it. Many of these contain steroids that work well on other skin conditions; however, they can have an opposite effect on peri-oral dermatitis.
Because the steroids cause a constriction in the tiny blood vessels of the skin, the rash may first appear to be fading. This is short-lived, though, as the rash soon returns with a vengeance. Prolonged steroid applications can also thin the affected skin, making it more susceptible to infection and resistant to healing.
Peri-oral dermatitis requires a different treatment approach. The first step is to stop using any kind of steroidal cream, as well as moisturizers, ointments and both prescription and non-prescription medications. Instead, you should only use a mild soap to wash your face.
You may find the rash looking worse for a few days but be patient and continue to avoid ointments or creams. Your healthcare provider may also prescribe oral antibiotics, usually of the tetracycline family. It may take several weeks of antibiotic treatment until the skin noticeably clears up.
For most people, this approach puts their rash into permanent remission. Some, though, may see a reoccurrence, in which case it’s usually best to repeat treatment. With a little patience and care, though, you’ll finally see this persistent rash fade away.