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Corrective Jaw Surgery

In some situations, a surgical procedure may be considered as an option to facilitate or enhance your orthodontic treatment.

The team at Fine Orthodontist Sydney is committed to providing expert guidance and quality orthodontic care.

The Role of Surgery in Orthodontic Treatment

In some cases, to achieve full correction, a surgical procedure may be considered in combination with orthodontic treatment. Examples include:

  • Jaw surgery, also called ‘orthognathic surgery’ (or jaw straightening) surgery.

  • Oral surgeries, such as surgical exposure or removal of teeth that are otherwise trapped under the gums.

These treatments require a number of specialists working together. Dr Fine works closely with Oral & Maxillofacial Surgeons and Periodontists depending upon the type of surgery needed.

If you’re interested to learn more about oral surgeries that are generally related to individual teeth (such as surgical exposure), please check out our blog on oral surgery and orthodontics.

This guide is intended to provide some introductory information on a special branch of oral/facial surgery known as orthognathic surgery or jaw surgery.

Read on to learn more:

Orthodontic Jaw Surgery 

In some situations, full orthodontic correction cannot be achieved  conservatively (i.e. without surgery). In cases where the jaws are incorrectly aligned, jaw surgery (orthognathic surgery) may be discussed as an option in order to align the jaw bones.

This may be the case in patients with significant underbites, overbites and open bites. In these cases orthognathic surgery may be used to change the shape and/or position of the jaw bones to correct jaw alignment and the bite.

Why May Orthognathic Surgery Be Recommended?

Jaw surgery treatment involving combined orthodontic / orthognathic surgery is usually only undertaken in cases involving adults or older teens.

Parents of younger patients may be interested to learn that early orthodontic intervention can reduce the likelihood of jaw surgery being indicated at a later stage.

Orthognathic surgery may be considered for correction of:

  • A small or recessive lower jaw and/or weak chin

  • A lower jaw that is excessively large, or prominent

  • An upper jaw is too large or too far forward (protruding upper jaw)

  • A recessive upper jaw

  • Jaw and chin alignment issues and asymmetries, including an unbalanced facial appearance

  • Significant bite issues (such as severe overbites, underbites, open bites and deep bites)

  • To help provide improved soft tissue support

  • To assist with management of sleep apnea

  • A ‘gummy smile’ and lip closure issues (which may present with a ‘long face’).

  • Inadequate incisal display (which may be present with a ‘short face’)

Orthognathic sugery may also be considered in the following situations:

  • As part of an overall management plan in cleft lip and palate cases
  • To correct some of the effects of jaw joint disease
  • As part of restorative treatment following severe facial trauma

Orthognathic surgery is usually carried out in conjunction with braces or clear aligners. The surgery corrects the larger discrepancy, while the braces or aligners ‘fine-tune’ the teeth and the smile to function well in the context of the new jaw position/s.

What is Involved in Corrective Jaw Surgery?

Orthognathic Jaw Surgery Initial Consultation

Your first step in your othodontic / orthognathic jaw surgery journey will usually involve a consultation with a specialist orthodontist, who will undertake a detailed examination, and discuss potential orthodontic treatment options. Your options will vary depending on your unique needs, as well as your preferences and treatment goals.

If applicable in your case, the option of orthognathic surgery may be discussed for aesthetic and/or functional reasons. It is important to note that all types of surgery have potential risks, even when carried out by an appropriately qualified surgeon.

Should you wish to explore a surgical option, the next step will usually include an introduction to an appropriately qualified and experienced Oral and Maxillofacial surgeon. At Fine Orthodontist Sydney, Dr Fine has extensive experience working closely with some of Sydney’s top specialist jaw surgeons. We will connect you to a surgeon who has experience with cases similar to yours, and we will work closely with them to plan the required orthodontic / orthognathic surgery movements needed to achieve your treatment goals.

After discussing your options with us at Fine Orthodontist Sydney, if you are keen to consider orthognathic surgery as an option, you will attend a separate consultation with the surgeon, who will undertake their own examination and assessment, and is the best person to provide you with specific advice regarding the procedure.

The surgeon will be able to provide you with information regarding:

  • the procedure and associated risks,

  • anaesthesia and pain relief,

  • your expected length of hospital stay,

  • advice regarding arranging for time off work or school,

  • financial information,

  • other general information regarding what to expect before, during, and after the surgery and recovery period.

Your surgical consultation is a great opportunity to learn and ask questions, and can help you to decide if jaw surgery is the best option in your case, with regard to your individual circumstances.

Orthodontic Surgery Treatment Planning

Should you decide to go ahead with a combined orthodontic / orthognathic surgery plan, the treatment planning for orthognathic surgery is usually carried out using a multi-disciplinary approach involving your Orthodontist, your Oral and Maxillofacial Surgeon, and possibly other dental or medical professionals depending on your needs.

Your combined orthodontic / orthognathic surgery treatment will be informed by your preferences and concerns, as well as your clinical diagnosis. Your specialists will take a variety of records, including clinical examinations, photographs, 3D X-rays and scans to assist with this planning. 3D models are also used to assist with precise treatment planning in preparation for surgery.

Pre-Surgical Orthodontic Treatment

Most orthodontic surgery cases commence with some initial orthodontic treatment in preparation for the new jaw positions. This usually involves lining up the teeth (addressing dental alignment) and often also includes ‘de-compensating’ teeth which are in incorrect positions due to underlying skeletal issues.

Your orthodontist will let both you and your surgeon know once all the pre-surgical movements are nearing completion, and advise that it is time to go ahead with making a date for the jaw surgery.

Your orthodontist and surgeon will communicate closely leading up to your surgery, and as the date of surgery approaches, you’ll see the surgeon again for pre-surgical visits to ensure that all planned surgical movements are compatible with the new, improved alignment of your teeth.

Bimaxillary osteotomy


Types of Corrective Jaw Surgery

The specific type of corrective jaw surgery performed depends on the orthodontic and other anatomical issues present, as well as your desired results.

Some common types of jaw surgery performed in combination with orthodontic treatment are as follows:

Upper Jaw Surgery

May be considered in circumstances such as when the upper jaw is too far forward or back, to treat a skeletal asymmetry, or there are ‘vertical’ issues, e.g., a ‘gummy smile’.

Upper jaw surgery can also improve support for soft tissue, further enhancing facial aesthetics (e.g., in some cases, upper jaw surgery can provide better support under lips). Examples of upper jaw surgery include:

  • Maxillary Osteotomy – The upper jawbone (maxilla) may be moved forwards, backwards, downwards, or rotated.

If upper jaw expansion is indicated, the following procedure may be done instead (or in addition):

  • Surgically Assisted Maxillary Expansion – This may be performed to facilitate expansion of the upper jaw.

Lower Jaw Surgery

May be an option in cases such as where the lower jaw is too far back or forward, or where there is an asymmetry. This type of jaw surgery can also provide improved support and aesthetics for soft tissue (e.g., can correct or reduce a ‘double-chin’ in some cases). Lower jaw surgery is also known as:

  • Mandibular Osteotomy – The lower jawbone (mandible) can be lengthened, shortened or rotated.

    A mandibular advancement (lower jaw advancement) is a common type of lower jaw surgery, and may be used to address a recessive mandible.

    Whilst the lower jaw may also be set back (shortened) surgically in the case of “mandibular prognathism” (protrusive lower jaw), it is interesting to note that some cases it is actually the upper jaw which is recessive, and the lower jaw is not actually protrusive at all.

    In these cases, the results may look more pleasing with a maxillary advancement rather than a mandibular setback. Using an upper jaw advancement, rather than lower jaw setback can also improve soft tissue support.

    In some cases (especially where there are asymmetries and other considerations), a combined approach may be an option to provide optimal results:

Upper Jaw Surgery and Lower Jaw Surgery (together)
  • Bimaxillary Osteotomy – Both the upper and lower jaws are treated in coordination to maximise functional and aesthetic results.

Chin Surgery
  • Genioplasty – The chin can be moved forwards, backwards, vertically or rotated sideways to improve aesthetics and/or lip function. This procedure may be done in conjunction with upper or lower jaw surgery, or as a separate procedure. 

    A genioplasty is a little different to the other options listed above, as it won’t change the way your teeth bite together. This means that it can sometimes be considered as an option independently of orthodontic treatment (so, possibly no need to do at the same time as your braces or aligner treatment).

    For this reason, depending on their needs and preferences, some people consider having a genioplasty after, or even instead of having orthodontic treatment. It is sometimes done at the time of wisdom tooth removal.

Post-Surgical Orthodontic Treatment

Following your orthognathic surgery, additional months of post-surgical orthodontic treatment are usually required to fine-tune the bite and alignment. As with most other orthodontic treatments, retainer wear will be required once the active treatment has been completed.

Before and After Surgery Photos

Free* Orthodontic Assessment

At Fine Orthodontist Sydney, we are here ready to discuss your goals and needs. From your first visit, to the unveiling of your healthier, more radiant smile, we’ll be there to guide the way.

Get in touch with us with any questions regarding orthodontic treatment and orthognathic surgery, or schedule a visit with us to begin your journey:

Secure your free* assessment now!

Orthognathic surgery viewing x-ray and planning for orthodontics

Frequently Asked Questions (FAQs) About Orthodontic Jaw Surgery

Here are the most often asked questions about orthodontic surgery and surgical orthodontics in general.

What is orthodontic jaw surgery?

Orthodontic jaw surgery, also known as orthognathic surgery, is a procedure to correct conditions of the jaw and face related to structure, growth, sleep apnea, TMJ disorders, and more. This surgery reshapes or repositions the jaws and teeth to achieve proper alignment and function.

Why might someone need corrective jaw surgery?

Jaw surgery is recommended for several reasons, including correcting severe overbites or underbites, assisting with the treatment of obstructive sleep apnea, addressing facial asymmetry, improving facial balance with the appearance of the profile, and repositioning misaligned or missing teeth.

Are braces or aligners required in conjunction with surgery?

Yes, in the majority of cases, jaw surgery is usually carried out in conjunction with braces or aligners. While the surgery corrects the major discrepancy, braces or aligners fine-tune the teeth and smile. There are some exceptions to this (e.g., chin surgery may be considered independently of orthodontic treatment).

What are the different types of corrective jaw surgeries?

The specific type depends on the issue at hand. Common types of jaw surgeries include Maxillary Osteotomy (upper jawbone), Mandibular Osteotomy (lower jawbone), Bimaxillary Osteotomy (both jaws).

Are there potential risks associated with jaw surgery?

All surgery involves some risk, even when carried out by a fully-qualified, experienced surgeon. The best way to understand the risks, and how they relate to your specific case, is to speak with a surgeon prior to making a decision to proceed with surgery.

What is the role of 3D imaging in orthodontic jaw surgery?

3D imaging technology is beneficial for diagnosing and managing jaw and tooth issues, ensuring precise surgical planning and maximising results..

How does jaw surgery impact facial appearance?

Jaw surgery can improve facial aesthetics by correcting imbalances, achieving symmetry, and optimising alignment, resulting in a more balanced and proportional appearance.

Where can I see the potential results of the surgery?

Before-and-after photos of actual patients can provide an idea of the transformations possible with orthognathic surgery, showcasing improved balance, symmetry, and alignment.

If you’re considering orthodontic jaw surgery, it’s crucial to consult with qualified professionals to understand all aspects of the procedure, including potential risks and benefits.

*If orthodontic X-rays are required, a fee of $180 applies. See Terms and Conditions. Treatment may not be suitable for you.

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Written by Danielle Long, Writer

Danielle Long

Danielle Long is a writer at Fine Orthodontist Sydney. She holds graduate qualifications in English and Education and is an integral part of the team at Fine Orthodontist Sydney. Danielle Long has been assisting in the orthodontic care process at Fine Orthodontist Sydney for over fifteen years, working closely with the team to provide exceptional patient support, communication and coordination of treatment plans. As a writer and an orthodontic treatment coordinator, Danielle Long’s primary responsibilities include facilitating exceptional patient education and communication, ensuring seamless coordination of treatment plans, and providing support to the clinical orthodontic team at Fine Orthodontist Sydney.

Specialist Orthodontist Input by Dr Martin Fine BDS, MSc (Orthodontics)

Specialist Orthodontist Dr Martin Fine, BDS, MSc (Orthodontics), is based in Sydney’s Eastern Suburbs. With over 30 years’ experience in private practice, Dr Fine has expertise working with a wide variety of orthodontic appliances, including braces and Invisalign. He has presented at orthodontic conferences globally, and has taught postgraduate orthodontic students at the University of Sydney. Dr Fine is a member of both the AAO (American Association of Orthodontists) and the ASO (Australian Society of Orthodontists), and is a former president of the Alpha-Omega Dental Society’s Sydney Chapter.  

In the past, Dr Fine’s research has been featured in the Angle Orthodontist journal. Dr Fine is committed to providing outstanding patient care using the latest and most effective techniques. 
 

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