How to Classify Your Smile: Critical When Deciding on Cosmetic Dentistry, including Porcelain Veneers, Bridges, and Dental Implants

What’s in a smile? It’s all in how it’s defined. Below are some examples, as detailed in my book, A Guide to the Perfect Smile, for your reading pleasure. I trust it will serve you well in your quest for the perfect, cosmetic smile.

Smile Patterns

As mentioned above, there are millions of different smiles – essentially as many as there are individuals – three basic smile patterns have been identified. Plastic surgeons given the task of rehabilitating smiles have identified three neuromuscular smile patterns, the commissure, cuspid, and the complex patterns.

Commissure Smiles

The commissure smiles is the most common pattern, seen in approximately 67% of the population. In this smile, typically thought of as a Cupid’s bow, the corners of the mouth are first pulled up and outward, followed by the levators (muscles) of the upper lip contracting to show the upper teeth. The lowest incisal edge of the maxillary (upper) teeth are the central incisors. From this point, the convexity continues superiorly with the maxillary first molar being 1 to 3 mm higher than the incisal edge of the centrals. A spontaneous commissure smile results in a maximum of movement of the commissure from 7 to 22 mm. likewise, the average direction of movement of the commissure is 40 degrees from the horizontal (range 24 to 38 degrees).

For personalities with recognizable commissure smiles, think of Sienna Miller, Paris Hilton, Drew Barrymore, and Jennifer Lopez.

Cuspid Smiles

The cuspid smile is found in approximately 31% of the population. In this smile, the shape of the lips is commonly visualized as a diamond. This smile pattern is identified by the dominance of the levator labii superioris. They contract first, exposing the cuspid teeth. Then the corners of the mouth contract secondarily to pull the lips upward and outward. The corners do not move as much as they do in the commissure smile. The corners of the mouth are often inferior to the height of the lip above the maxillary cuspids.

Often, in this smile pattern, there is a similar inferior turn of the maxillary premolars as opposed to the continuous convexity of a commissure smile, this “gull wing” effect is silhouetted by the gingival tissues, which correspondingly mimic the shape of the upper lip.

In cuspid smiles the maxillary morals are often at or below the incisal edge of the central incisors. Celebrities with this pattern include Eva Longoria, Angelina Jolie, Tom Cruise, and Jennifer Aniston.

Complex Smiles

The complex smiles is found in only about 2% of the population. Both upper and lower lip are actively pulled during smiling. The levators of the upper lip, the levators of the corners of the mouth, and the depressors of the lower lip contract simultaneously, showing all of the upper and lower teeth concurrently.

The key characteristics of this smile is the strong muscular pull and retraction of the lower lip downward and back. In this pattern, both maxillary and mandibular occlusal planes are generally parallel, like two chevrons.

For celebrated personalities with complex smiles, consider Julia Roberts, Oprah Winfrey, Cameron Diaz, and Britney Spears.”

Edward S. Philips, D.D.S.

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