Principles of Beautiful Dentistry

Beauty is a principle that man has grappled with for centuries and some would argue, since the beginning of time. The concept of beauty and its interrelation with facial proportions has long been contemplated by Dr. Yuriy May during his extensive studies in “Beauty & Symmetry of Facial Dimensions”  during which time he understood that the forms of facial attractiveness, and indeed the form of beauty in general, to be composed of, or the result of, two ideal components: Symmetry and harmony.

Symmetry is defined as the mirror image of parts or components about an axis. By all accounts a beautiful face is symmetric.

Harmony can be defined as a recurring theme.

It is these very components, that Dr. May holds as a core principle, ensuring he integrates esthetics and beauty into every single procedure conducted for his patients. As a result, this approach to beauty in dentistry is the very defining feature which has made Dr. May a leading cosmetic and transformative holistic dentist across Connecticut, New England and winning national acclaim from professional organizations such as AACD. Dr. May along with other renowned  cosmetic dental practitioners research and analysis of the most beautiful smiles has revealed repeatable, objective principles that can be applied to evaluate and improve dental esthetics in all patients. While this may be thought to be controversial, Dr. May has dedicated years to studying ultimate smile design architecture and principles, ultimately leading to the practice and implementation of the “Golden Proportion” which has been implemented as a mathematical tool to assess proportions in the frontal view of the arrangement of the maxillary teeth.(1) After years of studies in enhanced cosmetic dentistry programs inclusive of academic structural and mathematical classes on proportions, and ultimately hundreds of smile reconstructions on on patients,  Dr. May has come be a proponent of the “Golden Principle”  among the various philosophies in cosmetic dentistry as to how to create and redefine facial beauty through optimizing smile design and maxilla positioning.

Golden Principle –  This golden proportion has been defined as the ratio that is most Fibonacci_Ratioattractive to the human eye and mind, and the Greek letter “Phi” (ø) is used to indicate the number 1.618. The ratio between two portions of a line, in which the lesser of the two is to the greater as the greater is to the sum of both. This ratio has also been referred to as the Fibonacci ratio or Divine ratio. The symbol of the golden proportion is the pentagon, which was the symbol of the Pythagorean School, which was deeply involved in the study of the golden proportion. The Golden Proportion is unique in that the ratio of the smaller length relative to the larger length is identical to the ratio of the larger length to the total length

The ratio of the golden proportion was also described by Leonardo de Pisa, Fibonacci, in his development of the mathematical sequence. The Fibonacci mathematical progression in which each number is the sum of the two immediately preceding it: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, and so on, which converges on the golden proportion as shown in Table 1.6

The same principles apply to the size and shape of teeth in the smile, with the ideal size of the centrals, laterals and canines corresponding to the golden proportion of 1.618, to 1, to 0.6, respectively, and the centrals to have a length-width ratio of 10 to 7.

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Dr. Yuriy May of Natural Dentistry is the Top Cosmetic Dentist in Connecticut and Hartford


Leonardo da Vinci (1452-1519) was intrigued with the Golden Proportion and wrote about the principles in 1509 and published the “Divine Proportion”.

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Golden Ratio in Nature 

The biologic implications of seeing many things in nature follow the principle of golden proportionality imply that the proportion is not only linked to growth but also that it relates to optimal function.7 Nature is abundant with examples of the Golden Proportion. From the double helical form of our DNA to flowers and insects, the golden proportion is readily evident all around us (Fig. 6).


“Personal beauty is a greater recommendation than any letter of reference.”- Aristotle (384-322 BC)




“Beauty is power; a smile is its sword.” – Charles Reade




(1) Esthetic Dentistry and the Golden Proportion, April 2004, By: Antonio Mancuso DDS, FAGD, FADI, FPFA