Book Online

All health funds accepted · Payment plans available, humm from $0 deposit · CDBS bulk billing

All health funds accepted · Payment plans available, humm from $0 deposit · CDBS bulk billing

Book online

Dentist talking with a patient in the treatment chair

ADULT ORTHODONTICS

Jaw expansion for adults

planned from a 3D scan.

MARPE widens a narrow upper jaw using small titanium anchors in the palate, placed under local anaesthetic. In many adults it avoids surgery.

Where your expansion is planned

These photos were taken at our clinic in Melrose Central.

Dentist talking with a patient before treatment

Consult and 3D imaging

We tell you whether expansion suits you and what it can realistically achieve.

3D X-ray unit at Lumi Dental

CBCT planning

Where each TAD goes

Treatment room with dental chair at Lumi Dental

A short procedure

About 30 minutes, local anaesthetic

Dentist showing a patient her 3D scan on screen

What comes next

Braces or aligners move the teeth into the new space

Sterilisation room with autoclaves at Lumi Dental

Sterilisation room

Instruments sterilised after every patient

Waiting lounge at Lumi Dental

Waiting lounge

Room to settle in first

Consult room at Lumi Dental with a desk, chairs and timber cabinetry

Consult room

Time to talk through your options

Reception desk and illuminated logo at Lumi Dental Melrose Park

Reception

Where you check in

Clinical photography area at Lumi Dental

Clinical photos

Used to plan and check your treatment

Dentist talking with a patient before treatment
3D X-ray unit at Lumi Dental
Treatment room with dental chair at Lumi Dental
Dentist showing a patient her 3D scan on screen
Sterilisation room with autoclaves at Lumi Dental
Waiting lounge at Lumi Dental
Consult room at Lumi Dental with a desk, chairs and timber cabinetry
Reception desk and illuminated logo at Lumi Dental Melrose Park
Clinical photography area at Lumi Dental

How it works

What happens during treatment

1

Consult and 3D imaging

We assess your jaw, airway and bite, and explain whether expansion is suitable and what it can realistically achieve.

2

Fitting the appliance

The TADs are placed under local anaesthetic in about 30 minutes, then the appliance is fitted and we show you how to use it.

3

Reviews

Regular visits to track progress. Braces or aligners then move the teeth into the new space.

5.0

Average Google rating for Lumi Dental, Melrose Park.

Read the reviews on Google

Before you book

Suitability

We tell you whether expansion suits you and what it can realistically achieve.

Planning

Each TAD is planned on a CBCT scan.

Procedure

TADs are placed under local anaesthetic in about 30 minutes.

Next

Braces or aligners then move the teeth into the new space.

Dr James Tran

The clinicians who do this treatment

Meet the team

What a narrow jaw actually means

The upper jaw, or maxilla, forms the roof of your mouth and the floor of your nasal cavity. When it is too narrow, the nasal cavity above it is compressed, increasing resistance to airflow. The result can be chronic nasal obstruction, mouth breathing, snoring, and in some cases obstructive sleep apnoea. The dental consequences include crowding, posterior crossbite, and a high arched palate.

In children, the mid-palatal suture is still open and responds well to conventional expansion. By the mid-teens this suture begins to fuse, and by the early twenties it is typically interlocked. Adults were historically told that expansion was only possible surgically. Miniscrew-Assisted Rapid Palatal Expansion (MARPE) changed that.

How MARPE works

MARPE uses small titanium screws called TADs (temporary anchorage devices), placed in the palate under local anaesthetic. They hold an expansion appliance to the bone rather than the teeth. When the appliance is turned, the force goes into the bone instead of tipping the teeth outward, which is why adults can be expanded without surgery.

No surgery required

In many adults MARPE widens the jaw itself, without surgically assisted expansion (SARPE) or a Le Fort osteotomy.

Bone-anchored stability

Because the force goes into the bone, the jaw widens rather than the teeth tipping. That tends to give a more stable result.

CBCT guided planning

A CBCT scan shows the palate, bone thickness and suture in 3D. We plan where each TAD goes from that scan before the appliance is made.

Nasal breathing

Widening the palate also widens the floor of the nose. Some patients notice easier nasal breathing, though this varies from person to person.

A short procedure

The TADs are placed under local anaesthetic in about 30 minutes.

Combines with braces or aligners

MARPE creates the width. Braces or aligners then move the teeth into the new space. We offer Damon braces and clear aligners for this stage.

Are you a candidate?

MARPE may suit adults with a narrow upper jaw, a crossbite at the back, or crowding caused by jaw width. It is also considered where a narrow upper jaw may be adding to a blocked nasal airway. It does not suit everyone, so we check the palate, bone and suture on a CBCT scan before recommending it.

If you were told in the past that you needed jaw surgery for a narrow bite, MARPE may be an alternative. We will tell you what it can and cannot do in your case.

Adult jaw expansion FAQs

Can adults really have jaw expansion without surgery?

Yes. MARPE (Miniscrew-Assisted Rapid Palatal Expansion) delivers true skeletal expansion in many adults using small titanium screws placed in the palate, avoiding the need for surgical jaw procedures.

What problems does jaw expansion treat?

A narrow upper arch, a crossbite at the back, crowding caused by jaw width, and in some cases a restricted nasal airway.

Is it painful?

The TADs are placed under local anaesthetic in about 30 minutes. You can expect some pressure while the appliance is being turned.

How long does it take?

Active expansion typically runs 3-6 months, followed by a consolidation period of 6-12 months before the appliance is removed and orthodontic treatment begins.

Am I a suitable candidate?

It depends on your palate, bone and suture. We check these on a CBCT scan at your consult and tell you what MARPE can do for your case.

Related reading

More about jaw growth and airway

All jaw growth articles
What to expect

What to expect with jaw expansion

We begin with a consult and 3D imaging to assess your jaw, airway and bite. We explain clearly whether expansion is suitable for you and what it can realistically achieve.

If we go ahead, you are fitted with an appliance and shown how to use it. We see you for regular reviews to track progress and keep everything comfortable.

We work through the plan at a steady pace and keep you informed at every stage, with the timeframe and costs set out from the start.

Areas we serve

We are at Melrose Central in Melrose Park, with free undercover parking. Most of our patients come from the suburbs below.

Ryde, Eastwood and Epping

Melrose Park, Ermington, West Ryde, Meadowbank, Ryde, Putney, Gladesville, Tennyson Point, Denistone, Denistone East, Denistone West, Eastwood, East Ryde, North Ryde, Marsfield, Macquarie Park, Rydalmere, Dundas, Dundas Valley, Telopea, Oatlands, Carlingford, Epping, Cheltenham and Beecroft.

Parramatta and the west

Parramatta, North Parramatta, Harris Park, Rosehill, Camellia, Granville, South Granville, Clyde, Westmead, Northmead, Wentworthville, Holroyd, Merrylands, Guildford, Toongabbie, Old Toongabbie, Winston Hills, Constitution Hill and Baulkham Hills.

Olympic Park, Concord and Canada Bay

Wentworth Point, Newington, Sydney Olympic Park, Rhodes, Liberty Grove, Concord, Concord West, Breakfast Point, Cabarita, Mortlake, Abbotsford, Canada Bay, Rodd Point, Russell Lea, Wareemba, Five Dock, Drummoyne, Homebush, Homebush West, North Strathfield, Strathfield, Silverwater, Auburn, Lidcombe, Berala, Regents Park and Chester Hill.

Inner West

Burwood, Croydon, Croydon Park, Enfield, Belfield, Ashfield, Haberfield, Summer Hill, Leichhardt, Balmain, Marrickville and Campsie.

Hunters Hill and the lower North Shore

Hunters Hill, Henley, Woolwich, Lane Cove, St Leonards, Crows Nest, Artarmon, Chatswood and Willoughby.

Adult jaw expansion

Book an expansion assessment

We take a CBCT scan, explain your options and tell you what expansion can achieve for you. There is no obligation to go ahead.

Open Monday to Saturday, and until 9pm on Thursdays. Free undercover parking at Melrose Central.

Lumi Dental dentists and oral health therapists at reception
Sabrina Tran, oral health therapistJennifer Nguyen, oral health therapistDr James TranDr Audrey YeeDr Minh Thu Cao XuanDr Anita To

Dentists and oral health therapists

5.0

Google rating