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TU DENTAL CLINIC

The Difference in Beauty That 99% Miss

Where Does the Difference in Beauty Begin? In “Proportion.”

When shape, size, spacing, and flow come together,

we naturally perceive beauty.

Even with the same elements,

the overall balance and impression change depending on the proportion.

So, when did “proportion” become

a language for understanding beauty?

An Interesting History of Proportion

In Ancient Greece, the Golden Ratio (1 : 1.618)

was regarded as a harmonious proportion.

During the Renaissance, Leonardo da Vinci

studied human proportions through mathematics.

This perspective continues to influence

aesthetic design for facial and dental analysis today.

The Golden Ratio represents harmony between the whole and its parts,

while symmetry and proportion create a stable impression.

So, what hidden proportions lie within the face?

Every Beautiful Face Has a Hidden Formula.

Facial Proportion Analysis

Measurement AreaRatio/Value
Total Face Height to Width Ratio1.618 : 1
Vertical Facial Thirds (Forehead, Mid-face, Lower-face)1 : 1 : 1
Horizontal Eye Spacing (Eye width, Intercanthal distance, Eye width)1 : 1 : 1

Diagram Key

  • 1: Total facial width measurement
  • 2: Vertical facial division into equal thirds
  • 3: Horizontal eye and bridge of nose proportions
  • 1.618: Golden ratio applied to total facial height relative to width

Proportions of a Beautiful Face in Frontal View

① The Golden Ratio

Face Width : Height = approx. 1 : 1.618

It is widely known as the ideal facial proportion.

② Facial Rule of Thirds

When dividing the face into Forehead–Eyebrows / Eyebrows–Nose Tip / Nose Tip–Chin,

a 1 : 1 : 1 ratio across these three sections is considered ideal.

Recently, a 1 : 1 : 0.7–0.8 ratio with a slightly shorter lower face

has gained attention as a trend for a beautiful impression.

③ Eye Spacing

When the distance between the eyes matches the width of one eye

—at a 1 : 1 ratio—it is considered the most natural.

Just as Frontal Proportions Matter,
Side Profile Proportions Also Shape Facial Beauty.

번호항목수치
1, 3이상적인 안면 볼록각165~175°
2이상적인 비순각90~110°

Proportions of a Beautiful Face in Side Profile

① Ricketts’ E-Line

A line connecting the nose tip and chin.

Lips aligned with or slightly behind the E-line are evaluated as an ideal side profile.

② Nasolabial Angle

The angle between the nose and upper lip.

Generally, a range of 90–110°

is considered an ideal side profile proportion.

③ Facial Convexity Angle

The angle connecting the forehead, nose base, and chin.

Generally, a range of 165–175°

is used as the standard for a beautiful facial outline.

Even a Beautiful Smile Has a Hidden Formula.

Smile Analysis Points

  • 1
  • 2
  • 3
  • 4

A Beautiful Smile Is Complete
When the Teeth, Lips, and Gums Harmonize Together

① Smile Arc

The harmony between the curve of the upper teeth and the lower lip line

② Buccal Corridor

The harmony between the curve of the upper teeth and the lower lip line

③ Lip Shape

The extent of visible teeth and the shape of the lips

④ Gingival Zenith

The height and symmetry of the gum line

There Are Teeth That Suit a Beautiful Face and Smile

Different faces and smiles

call for different tooth sizes and shapes.

Even the same tooth design

can look natural or unnatural, depending on one’s face.

Face Shape & Tooth Size

Face Shape & Tooth Shape

Teeth are the key element

that enhances a truly beautiful face and smile.

Teeth Have Hidden Proportion Formulas, Too.

번호설명수치
1이상적인 비율75~80%
2중절치 너비 비율1.618
3측절치 너비 비율1

Just Like the Face, Teeth Also Have
Various Proportions that Help Define Beauty.

① Width-to-Length Ratio

A width-to-length ratio of 75–80% for the front teeth

is considered the ideal shape.

② Golden Proportion

A ratio of 1.618 : 1.0 : 0.618

among the central incisors, lateral incisors, and canines

is known as the ideal proportion.

③ RED Proportion

This standard evaluates whether the visible width of adjacent teeth

continues in a consistent ratio.

Tooth design considers the ratio that harmonizes with the face,

rather than relying on a single formula.

Does a Perfect Proportion Really Exist?

The proportions introduced above

are just one perspective of viewing beauty.

Since every face, smile, and tooth shape is unique,

what feels like the ideal ratio differs for everyone.

What matters is not a single formula,

but finding the proportion that looks most beautiful on you.

Ideal Beauty Begins with Detailed Analysis.

The harmony of the face, smile, and teeth is carefully examined,

and multiple elements are evaluated together.

  • Facial Proportions & Three-Dimensional Harmony

  • Smile Line & Lip Shape

  • Tooth Size & Proportions

  • Tooth Shape, Color & Translucency

ZERONATE Designs Beauty Tailored to You.

ZERONATE Designs Beauty Tailored to You.

Through X-rays, panoramic imaging, oral scans, and face scans,

we analyze the harmony between the face and teeth.

Designing a smile that naturally suits each individual—

this is the aesthetic design that ZERONATE pursues.

Beauty Does Not Begin with the Same Proportion for Everyone.
It Begins with the Proportion That Suits You.

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