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Gum Contouring & Crown Lengthening for Gummy Smiles

Transforming a Gummy Smile with Crown Lengthening

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A beautiful smile is not just about the teeth themselves — the shape and symmetry of the gum tissue play an equally important role. Excessive gum display, uneven gum lines, or "short-looking" teeth can make a smile appear disproportionate even when the teeth are healthy.

Gum contouring and crown lengthening are cosmetic periodontal procedures designed to improve the balance between the teeth and gums by carefully reshaping excess gum tissue and, when necessary, the underlying bone structure. The goal is to create a more natural, symmetrical, and aesthetically pleasing smile.

At Centerport Cosmetic & Implant Dentistry, treatment is carefully planned around facial aesthetics, tooth proportions, and long-term gum stability to achieve results that look natural rather than overdone.

Before & After

Gummy smile with excessive gum tissue and short upper teeth before crown lengthening in Portland
Before: excessive gum tissue and crestal bone coverage hiding natural tooth proportions.
Balanced smile after crown lengthening gum lift procedure at Centerport Dental in Portland
After: crown lengthening revealed more natural tooth structure and created an even, symmetrical gum contour.

What Is a Gummy Smile?

A "gummy smile" refers to excessive gingival display when smiling. In many cases, the teeth themselves are normal in size, but excess gum tissue partially covers the teeth, making them appear short, square, or uneven.

Patients commonly seek treatment because they feel their smile:

  • Shows too much gum tissue
  • Looks "short" or "stubby"
  • Appears uneven or asymmetrical
  • Lacks proper tooth display when smiling
  • Feels less balanced compared to their facial features

The ideal smile requires harmony between the "white" (teeth) and the "pink" (gum tissue). Even beautiful teeth can appear disproportionate if the gum contour is uneven or excessive.

Gum Contouring vs Crown Lengthening

Not all gummy smiles are treated the same way.

Some patients only require soft tissue reshaping to remove excess gum tissue. This is commonly referred to as gum contouring or gingivectomy.

However, in other cases, the underlying bone structure sits too close to the visible portion of the teeth. Simply trimming the gum tissue alone can lead to unstable healing or regrowth of the gums over time. In these situations, crown lengthening is required to properly reposition both the gum tissue and the underlying crestal bone.

This distinction is important because long-term cosmetic stability depends on properly respecting the biologic relationship between the gums and bone.

At Centerport Cosmetic & Implant Dentistry, careful diagnosis is performed to determine whether a patient requires simple gum contouring or a more comprehensive crown lengthening procedure for predictable and stable results.

How We Diagnose the Cause of a Gummy Smile

Proper diagnosis is critical before performing any cosmetic gum reshaping procedure.

A comprehensive evaluation may include:

  • Smile analysis and facial evaluation
  • Assessment of tooth proportions and symmetry
  • Periodontal probing
  • Bone sounding to evaluate crestal bone levels
  • Evaluation of gum thickness and biologic width
  • Digital photography and cosmetic smile analysis

These diagnostic steps help determine:

  • Whether the issue is caused by excess gum tissue alone
  • Whether excess bone is contributing to the gummy smile
  • How much tooth structure can be safely exposed
  • The ideal gum contour for natural smile aesthetics

This planning process allows treatment to be customized to the individual patient rather than using a one-size-fits-all approach.

Minimally Invasive Gum Contouring Procedure

Whenever possible, treatment is performed using minimally invasive techniques to improve comfort and reduce healing time.

Depending on the clinical situation, treatment may include:

  • Precise laser gum contouring
  • Conservative reshaping of excess gum tissue
  • Minor bone recontouring for crown lengthening
  • Flapless techniques when appropriate to minimize trauma

By carefully reshaping both the gums and supporting bone structure, the teeth can appear longer, more proportional, and better framed within the smile.

Most patients experience only mild post-operative discomfort and recover quickly following treatment.

Real Patient Example

This patient, a female in her mid-20s, had long been self-conscious about her gummy smile. Her upper front teeth appeared short and uneven due to excessive gum tissue and underlying crestal bone coverage.

Clinical evaluation confirmed that simple gum trimming alone would not provide a stable long-term result because the underlying bone levels also needed correction.

A minimally invasive crown lengthening procedure was performed using laser gum contouring combined with conservative bone reshaping. The procedure was completed without raising a surgical flap, helping minimize healing time and post-operative discomfort.

Following healing, the patient's smile appeared significantly more balanced and natural:

  • Increased tooth display
  • Improved symmetry of the gum line
  • Better overall smile proportions
  • Enhanced smile confidence

The final result created a cleaner and more harmonious relationship between the teeth and surrounding gum tissue while maintaining a natural appearance.

Why Gum Symmetry Matters in Cosmetic Dentistry

In cosmetic dentistry, the gums frame the teeth much like a picture frame surrounds artwork. Even small asymmetries in the gum line can significantly affect the appearance of a smile.

Proper gum contouring can help:

  • Improve tooth proportions
  • Create symmetry between the left and right sides
  • Enhance the appearance of veneers or cosmetic restorations
  • Reduce excessive gingival display
  • Create a more youthful and confident smile

The goal is not simply to remove gum tissue, but to create balance and harmony between the teeth, gums, lips, and facial aesthetics.

Concerned About a Gummy Smile?

If your teeth appear short, uneven, or hidden by excessive gum tissue, gum contouring or crown lengthening may help create a more balanced and confident smile.

Schedule a consultation with Dr. Wang to determine whether soft tissue contouring alone or a more comprehensive crown lengthening approach is appropriate for your smile and long-term goals. Most patients pay around $200/month at 0% APR. See your options in 60 seconds — no credit impact.

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