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Why Cortical Bone Reduction Matters in Modern Jaw Contouring Surgery?

Illustration comparing traditional aggressive mandibular angle reduction and modern cortical bone reduction techniques in jaw contouring surgery
Illustration comparing the traditional aggressive mandibular angle reduction technique with the modern contour-focused approach using cortical bone reduction. Modern jaw contouring emphasizes preservation of natural mandibular structure, smoother contour refinement, and improved frontal slimming while maintaining a more harmonious side profile.

 

 

 

Introduction

In the past, jaw contouring surgery often focused on aggressively reducing the mandibular angle.

While this approach could create a slimmer frontal appearance, excessive angle reduction sometimes resulted in:

  • An unnatural side profile
  • Over-resection of bone
  • A sharp or artificial appearance

A More Modern Philosophy

Today, modern jaw contouring surgery focuses less on removing large amounts of bone and more on refining the overall contour.

Instead of aggressively cutting the mandibular angle, we aim to:

  • Preserve the natural mandibular structure
  • Create smoother facial lines
  • Improve frontal slimming through cortical bone reduction

The goal is not simply “smaller,” but more harmonious and natural.

Why Cortical Bone Reduction Is Important

Cortical bone reduction allows surgeons to refine the outer contour of the mandible while maintaining structural balance.

This approach can provide:

  • A smoother jawline
  • Improved frontal contour
  • More natural-looking results
  • Better preservation of the side profile

Rather than creating an abrupt angle change, the transition becomes softer and more elegant.

3D CT comparison of mandibular contour before and after cortical bone reduction surgery
Three-dimensional CT comparison showing the preoperative anatomy (left), a simulated result without cortical bone reduction (center), and the actual postoperative result with cortical bone reduction (right). The comparison demonstrates how cortical bone reduction contributes to improved frontal slimming and smoother mandibular contour while preserving overall structural harmony.
Preoperative and 6-month postoperative frontal photographs after modern jaw contouring surgery with cortical bone reduction
Preoperative and 6-month postoperative photographs following jaw contouring surgery with cortical bone reduction. The postoperative result demonstrates a smoother jawline, improved frontal contour, and preservation of a natural side profile without an excessively sharp mandibular angle.

Does the Bone Grow Back?

This is one of the most common questions patients ask.

In most cases, the reduced cortical bone does not grow back in a clinically significant way.

Because:

  • The bone is removed in a controlled and stable manner
  • The remodeled contour remains consistent over time

We often confirm long-term stability during plate removal procedures months or years later.

Sequential postoperative CT scans showing stable mandibular contour after cortical bone reduction
Preoperative, immediate postoperative, and 6-month follow-up CT scans. The mandibular contour remains stable over time without significant bone regrowth.

 

 

Final Thoughts

Modern jaw contouring is no longer about removing the maximum amount of bone.

It is about understanding facial balance and removing the right amount in the right place.

Natural structure preservation, refined contour, and harmony are now the true goals of modern facial contouring surgery.

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