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Technical Strategies – Gummy Smile Correction Techniques

 

The gummy smile is a well known perioral appearance that occurs when too much of the gums (gingiva) shows when smiling. The interpretation of too much gingival show will vary amongst different people and their aesthetic sense. But the general aesthetic standard is that if more than a few millimeters shows when smiling it would be considered excessive.

There are a variety of causes of a gummy smile and can include vertical maxillary excess,  hyperactive lip elevators and even a short dental crown length. This leads to a variety of treatment strategies from dental crown lengthening to a maxillary impaction surgery. Selecting the best treatment depends on classifying the degree of gum exposure. If it is just a few millimeters of excess, crown lengthening may be considered. If excessive gum shows with the mouth at rest, maxillary impaction surgery would be best.

But the majority of gummy smiles are between these two extremes and neither crown lengthening or maxillary surgery are appropriate. The most common gummy smile surgery is the shortening or reversal vestibuloplasty. This is a lip repositioning procedure that drops down the height of the depth of the vestibule. By doing the attachment of the lip on the pre maxilla got a lower position the excursion of the upper lip is less when smiling and less or no gum shows.

It is important when doing a shortening vestibuloplasty that it is not placed too low. The absolute lower limit is at the level of the mucogingival margin. Trying to suture tissue lower than this level is difficult and also risks compromising the attached gingiva. The question is really how much higher should it be if at all?

This amount is determined by first measuring how much the upper lip elevates. This vertical measurement is taken from the incisal edge of the maxillary incisors when smiling and any tooth exposure when the lip is at rest subtracted. This number is then taken and is the vertical distance the vestibule needs to be lowered. This helps make markings on the alveolar and lip mucosa for the removal of the intervening tissue and the subsequent vestibular shortening.

One additional technique that I find useful in gummy smile surgery is the use of levator quadratus superioris muscle release. (myotomy) Once the mucous is removed the muscle can be directly accessed and released. This adds to the effect of the vestibuloplasty in decreasing upper lip elevation.

Dr. Barry Eppley

Indianapolis, Indiana


Dr. Barry EppleyDr. Barry Eppley

Dr. Barry Eppley is an extensively trained plastic and cosmetic surgeon with more than 20 years of surgical experience. He is both a licensed physician and dentist as well as double board-certified in both Plastic and Reconstructive Surgery and Oral and Maxillofacial Surgery. This training allows him to perform the most complex surgical procedures from cosmetic changes to the face and body to craniofacial surgery. Dr. Eppley has made extensive contributions to plastic surgery starting with the development of several advanced surgical techniques. He is a revered author, lecturer and educator in the field of plastic and cosmetic surgery.

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