Underbite Jaw Surgery: Correcting Misaligned Jaws for Improved Oral Function and Aesthetics

Underbite Jaw Surgery: Correcting Misaligned Jaws for Improved Oral Function and Aesthetics

Underbite jaw surgery, a significant yet transformative procedure, stands as a beacon of hope for many grappling with the challenges of an underbite. This condition, where the lower jaw protrudes beyond the upper, affects the alignment of teeth, the facial structure, and overall oral functionality.

In this comprehensive exploration, we delve into underbite jaw surgery, a solution that goes beyond mere dental correction to alter one’s quality of life. From understanding the intricacies of the condition to unraveling the complexities of the surgical process, we aim to provide a thorough guide on what to expect, the benefits, risks, and the transformative journey of this surgical intervention.

Join us as we navigate the path of underbite correction through jaw surgery, shedding light on how this procedure can bring about profound changes, both functionally and aesthetically. Stay tuned for an in-depth look into the world of underbite jaw surgery, where medical expertise meets transformative care.

What is the underbite jaw surgery

Underbite jaw surgery, medically known as orthognathic surgery, is designed to correct jaw misalignments, specifically targeting underbites.

The procedure improves the alignment of the teeth and bite, enhances facial symmetry, and positively impacts chewing, speaking, and breathing. Underbite jaw surgery is considered when less invasive treatments, like braces or aligners, are insufficient for correcting the misalignment.

Pre-surgical orthodontic treatment is usually required to prepare the teeth for the new jaw position. This surgery is a significant intervention but can offer lasting solutions to those with severe underbite issues.


Treatment options for underbite

Treatment options for underbite, where the lower jaw protrudes beyond the upper jaw, encompass various approaches to correct jaw misalignment and enhance facial appearance. Underbites can range from minor to severe, and the chosen treatment depends on the extent of the misalignment. One common and effective solution is orthognathic surgery, also known as corrective upper jaw surgery, performed by experienced oral and maxillofacial surgeons. This surgical procedure involves repositioning the upper and lower jaws for proper alignment.

Orthognathic Surgery:

  • Orthognathic Surgery for Underbites: This surgical procedure, commonly known as jaw surgery, is specifically targeted to treat severe underbites effectively.
  • Surgical Procedures Involved: It may involve maxillary osteotomy for adjusting the upper jaw and mandibular osteotomy for the lower jaw.
  • Use of Titanium Plates and Screws: The repositioned jaw bones are typically stabilized using plates and screws, often made of titanium, to facilitate the initial healing process.
  • General Anesthesia: The surgery is performed under general anesthesia to ensure patient comfort and safety.
  • Post-Surgery Diet: Following the surgery, patients are generally advised to follow a liquid diet for about six weeks to aid in the healing process.

Orthodontic Treatment:

  • Orthodontic appliances like braces may be used with jaw surgery to correct teeth overlap and improve bite problems.
  • An orthodontist plays a crucial role in the treatment plan, ensuring proper jaw movement and alignment of the teeth.

In conclusion, treatment options for underbite, particularly corrective jaw surgery, offer a comprehensive solution to address both functional and aesthetic concerns associated with jaw misalignment at an early age. The collaborative effort of oral and maxillofacial surgeons, orthodontists, and early intervention contributes to successful outcomes, providing patients with a corrected jaw position and an improved facial appearance.

Orthognathic jaw surgery procedure to correct severe underbite

maxillofacial surgeon work

Orthognathic jaw surgery, a substantial procedure conducted by oral and maxillofacial surgeons, is frequently recommended for rectifying a severe underbite. This condition, characterized by the lower jaw protruding beyond the upper jaw, can result in functional challenges related to chewing and speaking. Moreover, it may impact facial appearance, underscoring the significance of orthognathic jaw surgery in achieving both functional and aesthetic improvement. The surgery aims to realign the jaws for optimal function and aesthetics. Understanding the procedure, from pre-surgical orthodontic treatment to the post-surgery recovery phase, is crucial for patients considering this transformative journey.

Orthognathic Jaw Surgery Procedure to Correct Severe Underbite:

  • Pre-Surgical Orthodontic Treatment: Before surgery, orthodontic treatment, often involving braces, is typically required to align the teeth in preparation for the new jaw position.
  • Consultation with a Maxillofacial Surgeon: An experienced oral and maxillofacial surgeon evaluates the severity of the underbite, discussing the surgical plan and potential risks involved.
  • Surgical Procedure: The surgery is performed under general anesthesia. It usually involves cutting the bone in the lower jaw (mandibular osteotomy) and the upper jaw (maxillary osteotomy) to correct the alignment.
  • Repositioning the Jaw: The surgeon repositions the jaw bones, securing them in place with plates and screws. Double jaw surgery (both upper and lower jaws) may sometimes be necessary.
  • Recovery and Healing: Post-surgery, initial jaw healing typically takes about six weeks, with a total recovery period of several months. Patients may need to initially follow a liquid or soft diet and adhere to specific care instructions.
  • Post-Surgical Orthodontics: Following surgery, additional orthodontic treatment may be necessary to fine-tune the bite and teeth alignment.
  • Long-Term Results: The surgery aims for improved jaw function, corrected bite, and enhanced facial appearance. It can also alleviate sleep apnea, speech impairments, and chewing difficulties.

Orthognathic jaw surgery for severe underbite is a comprehensive process that requires a significant commitment from the patient. It involves collaboration between orthodontists and maxillofacial surgeons to ensure the best possible outcome. While the entire process can be extensive, the potential for improved quality of life and oral health makes it a valuable treatment option for those with severe underbite issues.

Conditions that require jaw surgery

Corrective jaw surgery, or orthognathic surgery, is a significant medical intervention typically performed by oral and maxillofacial surgeons to address various jaw structural and alignment issues. This type of surgery is not merely cosmetic; it’s often essential for improving basic functions such as chewing, speaking, and breathing. Understanding the conditions that necessitate such surgery is vital for those experiencing jaw-related difficulties, as it can greatly enhance both the functional and aesthetic aspects of the jaw and face. The decision to undergo corrective jaw surgery usually follows comprehensive evaluations and often involves a collaborative approach between surgeons, orthodontists, and sometimes other specialists.

Conditions That Require Corrective Jaw Surgery:

  • Severe Underbite or Overbite: The lower jaw protrudes significantly beyond the upper jaw (underbite) or vice versa (overbite) and cannot be corrected with orthodontics alone.
  • Open bite occurs when there’s a noticeable space between the upper and lower teeth while the mouth is closed.
  • Crossbite: A misalignment where some upper teeth sit inside the lower teeth when the mouth is closed.
  • Jaw Misalignment Due to Injury: Corrective surgery may be needed to realign the jaw following trauma or facial injury.
  • Birth Defects and Congenital Disorders: Conditions present from birth, affecting jaw development and alignment.
  • Chronic Jaw Pain and TMJ Disorders: For some patients with persistent jaw pain or temporomandibular joint disorders, surgery might be the best option for relief.
  • Difficulty Chewing, Swallowing, or Speaking: When misalignment severely impacts basic oral functions.
  • Sleep Apnea: In cases where jaw structure contributes to obstructive sleep apnea, surgery might improve breathing during sleep.
  • Facial Asymmetry: Significant asymmetry of the face due to jaw discrepancies may require surgical correction.
  • Protruding Jaw: A noticeably protruding or receding jaw can be repositioned through surgery.

Benefits of underbite jaw surgery

Undergoing jaw surgery to address an underbite, a condition where the lower jaw protrudes beyond the upper jaw, offers many benefits beyond cosmetic improvements. Corrective jaw surgery, under-chin or orthognathic surgery, is a comprehensive treatment option performed by experienced oral and maxillofacial surgeons. Underbite jaw surgery’s benefits encompass functional and aesthetic enhancements, addressing issues related to jaw misalignment, and providing a lasting solution for patients.

  • Improved Facial Appearance:
    • One of the primary benefits is enhancing facial appearance, as underbite jaw surgery repositions the upper and lower jaws, achieving a harmonious facial profile.
  • Correction of Jaw Misalignment:
    • Orthognathic surgery corrects bone development and skeletal structure, ensuring proper alignment of the jaw bones and reducing the severity of the underbite.
  • Enhanced Functionality:
    • Functional benefits include improved jaw movement and a corrected bite, which can alleviate difficulties associated with eating, speaking, and other oral functions.
  • Orthodontic Integration:
  • Prevention of Complications:
    • Early intervention through jaw surgery helps prevent potential complications associated with a severe underbite, including speech impairments and ongoing oral health issues.
  • Individualized Treatment Plans:
    • Experienced oral and maxillofacial surgeons collaborate with orthodontists to create individualized treatment plans, considering factors such as the patient’s age, the severity of the underbite, and specific aesthetic goals.
  • Long-Term Solutions:
    • Underbite jaw surgery’s long-term benefits are providing patients with a permanent solution to jaw misalignment and its associated functional and aesthetic concerns.

In conclusion, the benefits of underbite jaw surgery extend beyond cosmetic improvements, offering patients a comprehensive solution to correct jaw misalignment, enhance facial appearance, and improve overall functionality. The collaborative efforts of oral and maxillofacial surgeons and orthodontists ensure individualized treatment plans that result in lasting positive outcomes for patients seeking to address the challenges associated with an underbite.

Drawbacks of undergoing corrective jaw surgery

upper teeth overlap

Corrective jaw surgery, recognized for its effectiveness in addressing severe jaw misalignments, comes with its considerations and drawbacks. Delivered by skilled oral and maxillofacial surgeons, this significant medical procedure demands careful deliberation due to its complexity and potential impact on a patient’s life.

Both the immediate recovery period and the long-term effects necessitate thoughtful consideration. Acknowledging the potential drawbacks is essential for individuals contemplating this surgery, facilitating a well-informed decision-making process and preparing for the challenges that may arise throughout the journey towards improved jaw function and enhanced facial aesthetics.

Drawbacks of Undergoing Corrective Jaw Surgery:

  • Extended Recovery Time: The recovery process can be lengthy, often taking several weeks to months, during which patients may experience significant discomfort and lifestyle disruptions.
  • Dietary Restrictions: Post-surgery, patients typically need to adhere to a liquid or soft diet for an extended period, which can be challenging and affect nutrition.
  • Pain and Discomfort: Pain, swelling, and bruising are common after surgery and can be significant in the initial weeks, requiring pain management strategies.
  • Risk of Complications: As with any major surgery, risks include infection, bleeding, or nerve damage, which can lead to numbness or altered sensation.
  • Need for Orthodontic Treatment: Corrective jaw surgery is often part of a larger orthodontic treatment plan, requiring braces or other appliances before and after surgery, extending the overall treatment duration.
  • Speech and Chewing Difficulties: Initially, patients may experience difficulties with speech and chewing, which typically improve over time but can be frustrating in the short term.
  • Psychological Impact: The changes in facial appearance and the recovery process can have a psychological impact, necessitating a period of adjustment and sometimes affecting mental well-being.
  • Financial and Time Commitment: Corrective jaw surgery can be costly and requires a significant time commitment for both the surgery and follow-up appointments, impacting personal and professional life.

While corrective jaw surgery can offer life-changing results for many patients, weighing these drawbacks against potential benefits is crucial. A thorough consultation with an experienced oral and maxillofacial surgeon, along with discussions about expectations and recovery, will help ensure that patients are well-prepared for the surgery’s challenges and transformative outcomes.

Is underbite corrective jaw surgery painful?

Underbite corrective jaw surgery typically involves postoperative discomfort rather than severe pain. While patients may experience some discomfort, advancements in surgical techniques and anesthesia make the procedure relatively painless during the surgery itself.

Most individuals report manageable pain levels during the initial healing period, which may involve swelling, tenderness, and difficulty eating. Pain management strategies, including prescribed medications and guidelines for postoperative care, are provided to minimize any discomfort. The pain varies among individuals, and adherence to the recommended recovery plan significantly contributes to a more comfortable healing process.

With appropriate pain management measures, the discomfort associated with underbite corrective jaw surgery is generally tolerable.


In conclusion, underbite jaw surgery, performed by experienced oral and maxillofacial surgeons, offers lasting solutions for cosmetic and functional concerns related to jaw misalignment. This transformative procedure addresses bone development, enhances facial appearance, and improves overall functionality, including jaw movement and bite correction. While some postoperative discomfort is normal, effective pain management ensures a smoother healing process. With individualized treatment plans and modern techniques, underbite jaw surgery emerges as a comprehensive solution for individuals looking to overcome the challenges of jaw misalignment.


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Correction of Underbite


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