As a new permanent tooth develops, the roots undergo a process of breakdown and growth. As older cells dissolve (a process called resorption), they’re replaced by newer cells laid down (deposition) as the jaw develops. Once the jaw development ends in early adulthood, root resorption normally stops. It’s a concern, then, if it continues.
Abnormal root resorption most often begins outside of the tooth and works its way in, beginning usually around the neck-like (or cervical) region of the tooth. Also known as external cervical resorption (ECR), the condition usually shows first as pink spots where the enamel is being undermined. As these spots continue to erode, they develop into cavity-like areas.
While its causes haven’t been fully confirmed, ECR has been linked to excessive pressure on teeth during orthodontic treatment, periodontal ligament trauma, teeth-grinding or other excessive force habits, and bleaching techniques performed inside a tooth. Fortunately, ECR is a rare occurrence, and most people who’ve had these problems won’t experience it.
When it does occur, though, it must be treated as quickly as possible because the damage can progress swiftly. Treatment depends on the size and location of the resorption: a small site can often be treated by surgically accessing the tooth through the gum tissue and removing the offending tissue cells. This is often followed with tooth-colored dental material that’s bonded to the tooth to replace lost structure.
A root canal treatment may be necessary if the damage has extended to the pulp, the tooth’s interior. However, there’s a point where the resorption becomes too extensive to save the tooth. In these cases, it may be necessary to remove the tooth and replace it with a dental implant or similar tooth restoration.
In its early stages, ECR may be difficult to detect, and even in cases where it’s been diagnosed more advanced diagnostics like a CBCT scanner may be needed to gauge the extent of damage. In any case, it’s important that you have your teeth examined on a regular basis, at least twice a year. In the rare chance you’ve developed ECR, the quicker it’s found and treatment begun, the better your chances of preserving the tooth.
“Don’t panic” is your first priority when faced with a sudden mouth injury. Of course, that may be easier said than done when you or a family member has just experienced a chipped, fractured or even dislodged tooth.
It helps, therefore, to have some idea beforehand on what to do and, especially, when to do it. You should think in terms of immediate, urgent and less urgent injuries: a tooth completely knocked out of its socket requires immediate action — within 5 minutes of the injury; a tooth that’s moved out of its normal position but still in the socket is an urgent matter that needs professional attention within 6 hours; and a chipped tooth is less urgent, but still needs to be seen by a dentist within 12 hours.
As you may have gathered, the most important thing you can do when a dental injury occurs is to contact our office as soon as possible. If for some reason you can’t, you should visit the nearest emergency center.
There are also some actions you should take for a knocked-out permanent tooth because there’s a chance it can be replanted in the socket if you act within 5 minutes of the injury. First, rinse the tooth with cold, clean water (bottled or tap) if it’s dirty. Be sure to handle it gently, avoiding touching the root. Grasping the crown-end with your thumb and index finger, place the tooth into the empty socket and push it firmly into place. Apply light but firm pressure with your hand or a wad of wet tissue to make sure it doesn’t come out. Don’t worry about correct alignment — we can adjust that later during examination.
If the tooth is chipped or broken, try to locate the broken pieces — it may be possible to re-bond them to the tooth. You should store them in a container with milk or the injured person’s saliva (the same can be done for a knocked out tooth if reinserting it isn’t practical). The broken pieces should then be transported with the injured person to emergency treatment.
Taking these actions may not ultimately save a traumatized tooth, but they will certainly raise its chances for survival.
If you would like more information on preventing and treating dental injuries, 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 “The Field-Side Guide to Dental Injuries.”
Winter is the time for snowy landscapes, hot cocoa and flannel PJs, but for some 'tis the season for tooth trouble. What can you do to keep your teeth from becoming a pain this winter?
Tackle tooth sensitivity. Does crisp winter air on your teeth give you a jolt? A study published in the Journal of the American Dental Association found that 1 in 8 people (over 12%) suffer from tooth sensitivity, particularly to cold. Sensitivity can result from receding gums, erosion of tooth enamel, tooth decay or other dental problems. If you experience tooth sensitivity, use toothpaste that is specially formulated for sensitive teeth and breathe through your nose to protect your teeth from extreme cold. Most importantly, schedule a dental exam to determine why your teeth are sensitive.
Stay hydrated. In winter, we spend more time with the heat on and we tend to drink less water. A dry mouth can result, which can lead to bad breath, tooth decay and gum disease. Staying well hydrated keeps your gums and teeth moist and helps you produce more saliva, which is key to good oral health and fresh breath. Saliva helps wash away food debris and bacteria, neutralize decay-causing acid and repair weakened tooth enamel. For healthy teeth and gums, be sure to drink plenty of water this winter.
Safeguard your teeth on the slopes. Are you planning to hit the slopes this winter? Be sure to wear a mouthguard to help protect against injury. Beginning skiers and snowboarders are more likely to suffer falls that could result in dental injuries, while experts may fly over bumps and jumps, causing the upper and lower teeth to knock together with force. Even backyard sledders are at risk of dental injury. Mouthguards help protect against chipped, broken, or knocked-out teeth as well as soft tissue damage. So before you enjoy wintertime sports, make sure your teeth are protected. For the best fit and comfort, ask us about a custom mouthguard.
If you have questions about these or other dental issues, please contact us or schedule a consultation. You can learn more in the Dear Doctor magazine articles “Treatment of Tooth Sensitivity” and “Dry Mouth.”
When the multi-platinum recording artist, songwriter and TV personality Jason Derulo was recently asked about his ideal woman, his answer covered a remarkably broad spectrum. "There’s no specific thing," he said, "so I think it’s unfair to say what my ‘type’ is." But it turns out that there is one thing the So You Think You Can Dance judge considers essential: A beautiful smile.
"I’m not into messy teeth," Derulo said. "If the grill has spaces and different colors, it’s not my vibe."
As it turns out, he may be on to something: A number of surveys have indicated that a bright, healthy smile is often the first thing people notice when meeting someone new. Yet many are reluctant to open up that big grin because they aren’t satisfied with the way their teeth look. If you’re one of them, consider this: Modern cosmetic dentistry offers a variety of ways to improve your smile — and it may be easier and more affordable than you think.
For example, if your smile isn’t as bright as you would like it to be, teeth whitening is an effective and economical way to lighten it up. If you opt for in-office treatments, you can expect a lightening effect of up to 10 shades in a single one-hour treatment! Or, you can achieve the same effect in a week or two with a take-home kit we can custom-make for you. Either way, you’ll be safe and comfortable being treated under the supervision of a dental professional — and the results can be expected to last for up to two years, or perhaps more.
If your teeth have minor spacing irregularities, small chips or cracks, it may be possible to repair them in a single office visit via cosmetic bonding. In this process, a liquid composite resin is applied to the teeth and cured (hardened) with a special light. This high-tech material, which comes in colors to match your teeth, can be built up in layers and shaped with dental instruments to create a pleasing, natural effect.
If your smile needs more than just a touch-up, dental veneers may be the answer. These wafer-thin coverings, placed right on top of your natural teeth, can be made in a variety of shapes and colors — from a natural pearly luster to a brilliant "Hollywood white." Custom-made veneers typically involve the removal of a few millimeters of tooth enamel, making them a permanent — and irreversible — treatment. However, by making teeth look more even, closing up spaces and providing dazzling whiteness, veneers just might give you the smile you’ve always wanted.
If you would like more information about cosmetic dental treatments, please call our office to arrange a consultation. You can learn more in the Dear Doctor magazine article “Cosmetic Dentistry — A Time for Change.”
Tooth sensitivity can be disheartening: you’re always on your guard with what you eat or drink, and perhaps you’ve even given up on favorite foods or beverages.
The most common cause for this painful sensitivity is dentin exposure caused by receding gums. Dentin contains tiny open structures called tubules that transmit changes in temperature or pressure to the nerves in the pulp, which in turn signal pain to the brain. The enamel that covers the dentin, along with the gum tissues, creates a barrier between the environment and dentin to prevent it from becoming over-stimulated.
Due to such causes as aggressive over-brushing or periodontal (gum) disease, the gum tissues can recede from the teeth. This exposes portions of the dentin not covered by enamel to the effects of hot or cold. The result is an over-stimulation of the dentin when encountering normal environmental conditions.
So, what can be done to relieve painful tooth sensitivity? Here are 3 ways to stop or minimize the symptoms.
Change your brushing habits. As mentioned, brushing too hard and/or too often can contribute to gum recession. The whole purpose of brushing (and flossing) is to remove bacterial plaque that’s built up on tooth surfaces; a gentle action with a soft brush is sufficient. Anything more than two brushings a day is usually too much — you should also avoid brushing just after consuming acidic foods or liquids to give saliva time to neutralize acid and restore minerals to the enamel.
Include fluoride in your dental care. Fluoride has been proven to strengthen enamel. Be sure, then, to use toothpastes and other hygiene products that contain fluoride. With severe sensitivity you may also benefit from a fluoride varnish applied by a dentist to your teeth that not only strengthens enamel but also provides a barrier to exposed dentin.
Seek treatment for dental disease. Tooth sensitivity is often linked to tooth decay or periodontal (gum) disease. Treating dental disease may include plaque removal, gum surgery to restore receded gums, a filling to remove decay or root canal therapy when the decay gets to the tooth pulp. These treatments could all have an effect on reducing or ending your tooth sensitivity.
If you would like more information on the causes and treatments for sensitive 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 “Tooth Sensitivity.”
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