Posts for tag: gummy smile

By Steven D. Dunning DDS
August 13, 2015
Category: Dental Procedures
Tags: gummy smile  
ImprovingaGummySmileDependsonitsCause

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.”

By Steven D. Dunning DDS
May 06, 2014
Category: Oral Health
Tags: gummy smile  
TreatingaGummySmileDependsonitsCause

Something about your smile isn’t quite right. It’s too “gummy” — too much of the upper gum line is visible and it looks out of proportion to your teeth and lips. Most dentists identify a smile as too gummy if four millimeters or more (approximately an eighth of an inch) of the gum tissue is visible at a full smile.

Fortunately, there are ways to minimize this effect. It’s important, though, to first determine the true cause before we embark on any treatment plan.

Your teeth may be the actual cause. As we mature, teeth “erupt” through the gums and the supporting bone and appear in the mouth. They continue to erupt until meeting their “antagonists,” the opposing teeth from the opposite jaw. In addition, the gums go to the proper position where the root meets the enamel of the teeth around late adolescence. The normal result is a length of the crown (the visible portion of the tooth) of approximately 10 mm.

If the teeth don’t erupt fully or the gums don’t go to their proper position, the teeth appear shorter and the gums more prominent. Using a surgical technique called crown lengthening, we remove excess gum tissue and, if necessary, reshape the underlying bone to reveal the proper amount of tooth length. Teeth also shorten due to excessive wear; the teeth continue to erupt to compensate for the wear that occurs over time. The attached gum tissue follows with the tooth. This can be corrected with orthodontic treatment (for bite correction) and porcelain veneers.

Two more causes of a gummy smile are when a person has a hyper-mobile upper lip — the upper lip can raise too much lift when smiling — and an upper jaw length that appears too long for the face. If lips rise higher than the normal 6-8 mm when we smile, too much of the gum line appears. This can be treated temporarily with Botox injections to reduce the mobility of the muscles, or there is a surgical procedure that reduces the mobility of the upper lip. For an elongated upper jaw, orthognathic (“to straighten the jaw”) surgery relocates the jaw to a more upward position that diminishes the amount of gum tissue that shows during smiling.

Treatments for a gummy smile range from simple techniques to more complex surgical procedures. Only a thorough dental exam will reveal the best treatment path to follow.

If you would like more information on treatments for “gummy” smiles, 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.”



Belton
561 North Scott Ave. Suite A
Belton, MO 64012
(816) 331-4333
fax: (816) 318-8178

Adrian
20 E. Main St.
Adrian, MO 64720
(816) 297-2297




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