Golden Ratio in Smile Design

During the Renaissance, mathematicians began to observe the beings around them in nature. From the seashell patterns to the veins in the leaves, there was a fixed size ratio. Italian mathematician Leonardo Fibonacci used this knowledge to develop ...

During the Renaissance, mathematicians began to observe the beings around them in nature. From the seashell patterns to the veins in the leaves, there was a fixed size ratio. Italian mathematician Leonardo Fibonacci used this knowledge to develop a series of numbers related to the golden ratio of 1.618. After this ratio emerged, assets naturally began to be more attractive to the human eye.

Da Vinci, for example, made many beautiful paintings based on it, including the Mona Lisa. Today, this “magic” ratio is used in many other disciplines such as design, architecture and photography.

 

The golden ratio, also known as the golden section or divine ratio, or the Greek letter Phi (φ), is also applied in smile design. When the image of the teeth and the size of the teeth comply with this rule, the smile is thought to be symmetrical and attractive. Since every patient has a different dental arch structure, lip anatomy, and face ratio, it may seem impossible to fully reproduce the golden ratio rule in aesthetic dentistry, however, dentists try to achieve the best result for each patient. Because an important part of aesthetic dentistry is to associate the successive width/length of the anterior teeth with the golden ratio.

 

Dentists use photographs and models of teeth to recreate the smile in aesthetic proportions that suit the patients’ lips and face shape. Furthermore, they use the interpupillary line and the midline of the face as guides, or landmarks, to locate the dental midline and flatten the structure of the anterior teeth.

 

Today, digital developments allow dentists to transform the smile they design into the patient by looking in a virtual mirror. The procedure called digital smile design is a chain of protocols that enables the correct determination of the elements that can be developed regarding the smile design of the patient with digital techniques and deciding what can be done for treatment. Final expectations for the desired smile design may vary from patient to patient. This method allows the patient to "test drive", so to speak. In short, thanks to technological tools, it determines the best treatment option for patients and ensures that everyone has a correct and healthy smile.

 

19.08.2021