A “gummy” smile, in which the upper gums are too prominent, is a common condition. There are several causes for gummy smiles — determining which one is the first step to having your appearance changed.
Although perceptions vary from person to person, most dentists agree a gummy smile shows 4 mm or more of gum tissue, and the amount is out of proportion with the length of the crown (the visible tooth). Teeth normally erupt through the gums during childhood and continue development until early adulthood, shrinking back from the tooth until stabilizing in place.
This typically produces a crown length of about 10 mm, with a “width to length” ratio of about 75-85%. But variations can produce differences in the relationship between teeth and gums and the width to length ratio of the teeth. The teeth may appear shorter and the gums more prominent. Worn teeth, caused by aging or grinding habits, may also appear shorter.
If tooth to gum proportionality is normal, then the cause may be upper lip movement. When we smile, muscles cause our lips to retract 6-8 mm from the lip’s resting position. If the amount of movement is greater (meaning the lip is hypermobile), it may show too much of the gums. The upper jaw can also extend too far forward and cause the gums to appear too prominent.
There are a number of ways to improve gummy smiles, depending on the cause. Periodontal plastic surgery known as crown lengthening removes and reshapes excess gum tissue to reveal more of the tooth. Lip hypermobility can be reduced with Botox injections (to paralyze the muscles) or in some cases with surgery to reposition the muscle attachments. Orthognathic surgery can be used to surgically reposition an overextended upper jaw. Other cosmetic enhancements such as orthodontics, bonding or porcelain restorations can also prove effective.
The first step is to obtain an accurate diagnosis for your gummy smile. From there, we can devise the best treatment approach to bring your smile back into a more attractive proportion.
If you would like more information on minimizing a gummy smile, 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 “Gummy Smiles.”
For anyone else, having a tooth accidentally knocked out while practicing a dance routine would be a very big deal. But not for Dancing With The Stars contestant Noah Galloway. Galloway, an Iraq War veteran and a double amputee, took a kick to the face from his partner during a recent practice session, which knocked out a front tooth. As his horrified partner looked on, Galloway picked the missing tooth up from the floor, rinsed out his mouth, and quickly assessed his injury. “No big deal,” he told a cameraman capturing the scene.
Of course, not everyone would have the training — or the presence of mind — to do what Galloway did in that situation. But if you’re facing a serious dental trauma, such as a knocked out tooth, minutes count. Would you know what to do under those circumstances? Here’s a basic guide.
If a permanent tooth is completely knocked out of its socket, you need to act quickly. Once the injured person is stable, recover the tooth and gently clean it with water — but avoid grasping it by its roots! Next, if possible, place the tooth back in its socket in the jaw, making sure it is facing the correct way. Hold it in place with a damp cloth or gauze, and rush to the dental office, or to the emergency room if it’s after hours or if there appear to be other injuries.
If it isn’t possible to put the tooth back, you can place it between the cheek and gum, or in a plastic bag with the patient’s saliva, or in the special tooth-preserving liquid found in some first-aid kits. Either way, the sooner medical attention is received, the better the chances that the tooth can be saved.
When a tooth is loosened or displaced but not knocked out, you should receive dental attention within six hours of the accident. In the meantime, you can rinse the mouth with water and take over-the-counter anti-inflammatory medication (such as ibuprofen) to ease pain. A cold pack temporarily applied to the outside of the face can also help relieve discomfort.
When teeth are broken or chipped, you have up to 12 hours to get dental treatment.Â Follow the guidelines above for pain relief, but don’t forget to come in to the office even if the pain isn’t severe. Of course, if you experience bleeding that can’t be controlled after five minutes, dizziness, loss of consciousness or intense pain, seek emergency medical help right away.
And as for Noah Galloway:Â In an interview a few days later, he showed off his new smile, with the temporary bridge his dentist provided… and he even continued to dance with the same partner!
If you would like more information about dental trauma, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Trauma & Nerve Damage to Teeth” and “The Field-Side Guide to Dental Injuries.”
If you press your tongue against your teeth, unless something is badly wrong they won't budge. In fact, your teeth are subjected to a fair amount of pressure each day as you chew and eat, and yet they remain firmly in place.
But there's a deeper reality—your teeth do move! No, it's not a paradox—the gum and bone tissues that hold your teeth in place allow for slight, imperceptible changes in the teeth's position. Their natural ability to move is also the basis for orthodontics. Here are 3 more facts you may not know about your teeth's natural ability to move.
Teeth are always on the move. Teeth are held firmly within the jawbone by an elastic gum tissue called the periodontal ligament and a thin layer of bony-like material called cementum. In response to pressure changes, though, the bone dissolves on the side of the teeth in the direction of pressure and then rebuilds behind it, solidifying the teeth's new position, a process that happens quite slowly and incrementally. And it will happen for most of us—some studies indicate more than 70% of people will see significant changes in their bite as they age.
Orthodontics works with the process. Orthodontic appliances like braces or clear aligners apply targeted pressure in the direction the orthodontist intends the teeth to move—the natural movement process does the rest. In the case of braces, a thin metal wire is laced through brackets bonded to the front of the teeth and then anchored, typically to the back teeth. The orthodontist incrementally tightens the wire against its anchors over time, encouraging tooth movement in response to the pressure. Clear aligners are a series of removable trays worn in succession that gradually accomplish the same outcome.
Watch out for the rebound. That nice, straight smile you've gained through orthodontics might not stay that way. That's because the same mechanism for tooth movement could cause the teeth to move back to their former positions, especially right after treatment. To avoid this outcome, patients need to wear a retainer, an appliance that holds or "retains" the teeth in their new positions. Depending on their individual situations and age, patients may have to wear a retainer for a few months, years or from then on.
If you would like more information on orthodontic treatment, 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 Importance of Orthodontic Retainers.”
At any given time some 4 million teens and pre-teens are wearing braces or other orthodontic appliances to correct a malocclusion (poor bite). While most cases are straightforward, some have difficulties that increase treatment time and cost.
But what if you could reduce some of these difficulties before they fully develop? We often can through interceptive orthodontics.
This growing concept involves early orthodontic treatment around 6 to 10 years of age with the goal of guiding the development of a child’s jaws and other mouth structures in the right direction. These early years are often the only time of life when many of these treatments will work.
For example, widening the roof of the mouth (the palate) in an abnormally narrow upper jaw takes advantage of a gap in the bone in the center of the palate that doesn’t fuse until later in adolescence. A device called a palatal expander exerts outward pressure on the back teeth to influence the jawbone to grow out. New bone fills in the gap to permanently expand the jaw.
In cases with a developing overbite (the upper front teeth extending too far over the lower teeth when closed), we can install a hinged device called a Herbst appliance to the jaws in the back of the mouth. The hinge mechanism coaxes the lower jaw to develop further forward, which may help avoid more extensive and expensive jaw surgery later.
Interceptive treatments can also be fairly simple in design like a space retainer, but still have a tremendous impact on bite development. A space maintainer is often used when a primary (“baby”) tooth is lost prematurely, which allows other teeth to drift into the empty space and crowd out the incoming permanent tooth. The wire loop device is placed within the open space to prevent drift and preserve the space for the permanent tooth.
To take advantage of these treatments, it’s best to have your child’s bite evaluated early. Professional organizations like the American Association of Orthodontists (AAO) recommend a screening by age 7. While it may reveal no abnormalities at all, it could also provide the first signs of an emerging problem. With interceptive orthodontics we may be able to correct them now or make them less of a problem for the future.
If you would like more information on orthodontic treatments, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Interceptive Orthodontics.”
Families of children with chronic conditions face many challenges. One that often takes a back seat to other pressing needs is the prevention of tooth decay. But although difficult, it still deserves caregivers’ attention because of the dental disease’s potential long-term impact on oral health.
Chronically ill children are often at higher risk for tooth decay, most commonly due to challenges in practicing effective oral hygiene. Some conditions create severe physical, mental or behavioral impairments in children’s ability to brush and floss: for example, they may have a heightened gag reflex to toothpaste in their mouth or they may not be able to physically perform these tasks on their own.
Some children may be taking medications that inhibit salivary flow as a side effect. Saliva is critical for disease prevention because it both neutralizes mouth acid (which can erode tooth enamel) and is a first line of defense against disease-causing bacteria. And a child’s diet, while designed to support treatment of their chronic condition, may conversely not be the best for supporting their dental health.
It’s best if caregivers and their dentists develop a strategy for decay prevention, which should include the following:
- Regular dental visits beginning at Age One. Besides monitoring dental health, dental visits also provide cleanings and other preventive measures like topical fluoride or sealants;
- Brushing and flossing support. Depending on a child’s physical and mental capacities, caregivers (or an older sibling) may need to model brushing and flossing, or perform the tasks for the child;
- Medication and diet changes. If medications are causing dry mouth, caregivers can speak to their physicians about possible alternatives; likewise, they should see if modifications can be made to their diet to better support dental health.
- Boosting salivary flow. It’s especially important with children who have dry mouth to drink more water or use aids (like xylitol gum or candies) to boost salivary flow.
Although it requires extra effort and time to give attention to a chronically ill child’s dental health, it’s well worth it. By working to prevent tooth decay early in life, these children will be more likely to enjoy good dental health in the future.
If you would like more information on dental care for children with special needs, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Managing Tooth Decay in Children with Chronic Diseases.”
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