What Is The ‘Divine Proportion’?
The Divine Proportion results from the division of a straight line in such a way that the longer part is to shorter part as the whole is to the longer part. Each ratio equals 1.618.
Obviously, the Divine Proportion is not the only parameter that defines harmony and therefore beauty. However, numerous studies and experiments have demonstrated that this surface division creates an aesthetic appeal, independently from ethnic or civilization factors.
Divine And Dental Proportions
The width of the central incisor is in Divine Proportion to the width of the lateral incisor (as seen from the front), which in turn is in Divine Proportion to the part of the canine that is visible from the front.
The distance between the corners of the mouth and the outer surface of the canines during a smile (blue line 1.0) is in divine Proportion with one half of the width of the upper anterior segment (blue line 1.618) in this area there should be teeth showing. If not this is called a negative space. Though the negative space escapes the attention of the public, it cannot be ignored. It creates a balance between cohesive and segrative forces in a smile and provides a harmonious relationship between the smile and other facial features. This example indicates that some fundamental principles are more easily perceived than others.
The presence of a lateral negative space gives a narrow slim smile, while its absence displays exuberance and brilliance paired with functional health.