Expansion Orthodontics
Expansion orthodontics creates more space for the teeth by gradually widening a narrow upper jaw or dental arch. Unlike approaches that rely on tooth extraction to create space, expansion aims to develop the available space where clinically suitable, providing a foundation for better tooth alignment and bite function.
At kohe™ Dental, we offer expansion options for children, teens and adults, including Traditional Palatal Expanders (RPE), Invisalign Palatal Expanders and MARPE. Our dentists will assess your teeth, bite, jaw structure and stage of development to determine the best approach for your orthodontic needs.

Expansion Orthodontics Quick Summary
- 17+ Years of Combined Experience
- Experience Managing Complex & Severe Orthodontic Cases
- Non-Extraction Approach
- Orthodontic Care from Childhood to Mature Adulthood
- 300+ Braces Cases Per Year
- Open 6 Days a Week
Transparent and Affordable Expansion Orthodontics Costs
At kohe™ Dental, we keep treatment fees clear and transparent, so that you know exactly what to expect before you begin treatment.
Our packages include a consultation, necessary X-rays, 3D intraoral scans, and review visits, unless otherwise stated. We also do not charge for disposables and consumables.
CHILDREN
UNDER 12 YEARS
Traditional Palatal Expander (RPE)
ONE-TIME PAYMENT
$1,680
$1,831.20 INCLUSIVE OF 9% GST
Package Inclusions
- Consultation
- X-rays
- 3D scans
- 3D facial scans
- 3D treatment planning
- Traditional Palatal Expander
- Review visits
CHILDREN
UNDER 12 YEARS
ONE-TIME PAYMENT
$1,928
$2,101.52 INCLUSIVE OF 9% GST
Package Inclusions
- Consultation
- X-rays
- 3D scans
- 3D facial scans
- 3D treatment planning
- Traditional Palatal Expander
- Review visits
TEENS AND ADULTS
12 YEARS & ABOVE
MARPE
ONE-TIME PAYMENT
$3,528
$3,845.52 INCLUSIVE OF 9% GST
Package Inclusions
- Consultation
- X-rays
- 3D scans
- 3D facial scans
- 3D treatment planning
- Traditional Palatal Expander
- Review visits
Expansion Orthodontics At a Glance
Expansion orthodontics is a specialised approach that uses expansion appliances to create space within the dental arches. It addresses concerns such as crowding, crossbites and compromised airway function.
Rather than relying on extractions to create space, expansion orthodontics focuses on widening the dental arches where clinically appropriate to support alignment while preserving the natural teeth.
Patients of various ages can benefit from expansion orthodontics. Younger patients whose jaws are still developing may be suitable for a Traditional Palatal Expander (RPE) or Invisalign Palatal Expander. In contrast, adult patients may need more advanced options, such as MARPE (Mini-screw Assisted Rapid Palatal Expansion), because their palates have already fused.

Benefits of Expansion Orthodontics
Expansion orthodontics takes a more holistic approach to creating space for teeth, with benefits that extend beyond alignment.
Creates space without extractions
When the dental arch is too narrow to accommodate all the teeth, crowding occurs.
Expansion orthodontics uses appliances such as palatal expanders or MARPE to widen the upper arch and create more space for the teeth.
Supports proper tooth eruption
In growing children, a narrow dental arch can limit the space available for adult teeth to erupt.
Expansion can create additional room for developing teeth to erupt in more favourable positions, which may reduce crowding as the child grows.
Improved airway and breathing
A narrow jaw may be associated with reduced nasal airway space, mouth breathing, snoring and disrupted sleep.
By widening the upper jaw, expansion orthodontics creates more space for the tongue to rest in a healthy position, which can support nasal breathing and overall airway function.
Enhanced facial balance and smile aesthetics
A narrow upper dental arch may result in a constricted smile, where the teeth look crowded and the smile lacks fullness.
By widening the upper arch, dentists can create a broader, more proportionate smile that supports the lips and cheeks.
Better bite and jaw alignment
A narrow upper jaw can cause a crossbite or uneven bite pressure, which may affect long-term oral health.
By addressing the underlying structure, expansion can create a more balanced bite that benefits both function and aesthetics.
Long-term, stable orthodontic results
When the dental arch is too narrow to accommodate the teeth, expansion can create additional space for better alignment.
This may reduce the need for extractions and support long-term orthodontic stability, along with appropriate retainer wear.
Types of Expansion Devices
There are many types of expansion devices available in Singapore.
Here are some of them that are available at kohe™ Dental:
$1,680 ($1,831.20 with 9% GST)
Traditional Palatal Expander (RPE)
An RPE is a fixed orthodontic device that gradually widens the upper jaw. A small screw in the centre of the appliance is turned at regular intervals, gently expanding the palate.
Pros: Effective in growing children, as their palatal suture is still responsive to expansion.
Cons: The device may temporarily affect pronunciation, chewing and swallowing.


$1,928 ($2,101.52 with 9% GST)
An Invisalign Palatal Expander uses a series of custom-made, removable expanders to gradually widen the upper palate in growing children.
Pros: A removable device that makes eating and oral hygiene easier.
Cons: Patients have to wear and change the expanders according to their dentist’s instructions.
$3,528 ($3,845.52 with 9% GST)
MARPE (Mini-Screw Assisted Rapid Palatal Expansion)
MARPE uses mini screws placed on the roof of the mouth to anchor an expansion device. The appliance gradually applies pressure to the two sides of the upper jaw, encouraging them to separate. New bone then forms in the space as the area heals and stabilises.
Pros: Provides expansion for older teens and adults who may not be suitable for traditional expansion.
Cons: It is more invasive as miniscrews are placed in the palate to support the expansion device.

Expansion Orthodontics Treatment Journey at kohe™ Dental
When you take up Expansion Orthodontics treatment at kohe™ Dental, you can expect complete cost and treatment transparency with no bill shocks.
Our treatment coordinators have been trained to ensure that you are aware of all our dental treatment costs before you enter the dental clinic. We believe that cost transparency empowers you to decide whether the budget makes sense for you.
Our exclusive partnerships with brands and suppliers have allowed us to come up with a competitive pricing structure for expansion orthodontics treatment. The reduced costs are passed on as cost savings to patients like yourself.
Expansion orthodontics requires careful assessment, treatment planning and regular monitoring to ensure that your upper jaw and teeth are responding appropriately to treatment. Depending on your age, oral development and orthodontic needs, your dentist may recommend a Traditional Palatal Expander (RPE), Invisalign Palatal Expander or MARPE.
It is necessary to return to the dental clinic for review appointments throughout your expansion treatment so that your dentist can monitor your progress and make adjustments where required.
During the active expansion phase, you will also receive instructions on how to care for your appliance and, where applicable, how and when to activate it. If your appliance becomes loose, damaged or uncomfortable, you may need to return to the clinic for an assessment.
Expansion orthodontics may form the first phase of a broader orthodontic treatment plan. Depending on your individual needs, your dentist may recommend braces or clear aligners after expansion to align your teeth and refine your bite.
At kohe™ Dental, we work with both local and international patients from Malaysia, Brunei, Cambodia, Myanmar, Indonesia, the Philippines, Thailand, Korea, Japan, the UAE, USA, UK and Sweden.
Here is what you can expect when you visit kohe™ Dental for expansion orthodontics treatment:
1st Visit: Initial Consultation
Your journey at kohe™ Dental begins at our clinic located along Orchard Road. During your first consultation, your dentist will start by understanding your concerns, goals and lifestyle. You share what bothers you about your teeth and bite and what you hope to achieve from treatment.
Next, your dentist will conduct a clinical examination of your teeth, gums and bite. Your dentist will also observe your face from the front and side, evaluate how your lips rest and move, and assess your tongue posture and breathing pattern.
This helps your dentist to understand both your teeth and facial structure.
1st Visit: Scans and Imaging
Next, you will undergo a three-dimensional intraoral scan that captures the exact shape and position of your teeth. This is more comfortable than traditional impression techniques and allows for precise digital planning.
Afterwards, your dentist will take photographs of your smile, lips, and profile. X-rays, such as an orthopantomogram (OPG) and a lateral cephalometric image (Lat-Ceph), show your jaw relationships and bone levels. In some cases, your dentist may recommend cone beam imaging to study the airway space and root positions.
Together, these records give your dentist a complete picture of your oral health and help them design a treatment plan that is tailored to your needs.
1st Visit: Diagnosis and Treatment Planning
Your dentist carefully reviews your scans, photographs, and records to form a comprehensive diagnosis. During this discussion, you will gain a clear understanding of your oral health condition and the treatment options available to you. Your dentist will also explain how traditional orthodontics differs from expansion orthodontics, including the benefits, limitations and expected outcomes of each approach.
At the end of the appointment, you will be given an estimated treatment duration, an outline of the main phases, and a written quotation.
2nd Visit: Pre-Treatment Cleaning and Preparation
Before your expansion treatment begins, you will be scheduled for a pre-orthodontic scaling and polishing or Guided Biofilm Therapy session with our Oral Health Therapist. This preparatory step is crucial as it ensures that the structures surrounding your teeth are strong enough to support your treatment.
3rd Visit: Placement of Expander
Once your mouth is prepped and ready for treatment, you will be scheduled for your fitting appointment. Your dentist will carefully attach the expansion device to your upper palate. This process is precise but generally straightforward, and your dentist will ensure that the appliance feels secure before you leave the clinic.
You will be given detailed instructions on how the appliance works and what to expect over the next few days. Your dentist will also brief you on appropriate oral hygiene, eating habits and managing the initial sensitivity.
Activation Phase
The activation phase is when expansion begins. Depending on your chosen expansion appliance, you may be instructed to turn a small screw located within the appliance at specific intervals, often once daily. Each activation phase applies gentle, controlled pressure that gradually widens the upper jaw over time.
During this period, you may feel some tightness or pressure across your upper jaw, especially during the first few days. However, as your mouth gets used to the device, the pain will subside. You may also notice a gap forming between your front teeth. This is a good sign as it means your palate is expanding.
Follow-Up Visits: Monitoring and Adjustment
During your follow-up appointments, your dentist will assess how your teeth, bone and tissues are responding to the treatment. Depending on your body’s natural response, adjustments may be made.
Final Phase: Stabilisation and Teeth Alignment
Once your dentist achieves the planned expansion, they will stop activating the appliance and leave it in place for a period of time to allow the new bone and surrounding tissue to stabilise.
Depending on your treatment plan, you may then move on to braces or clear aligners to straighten your teeth within the newly created space. Your dentist will guide you through the next stage based on your individual treatment goals.
Expansion Treatment Duration
The duration of expansion orthodontics varies between patients, depending on age, case complexity, individual needs, and the type of orthodontic appliance.
On average, the expansion phase takes:
- 6-9 months for young patients whose palate has not fully fused
- 9-12months for teenage or adult patients whose palate has already fused
If you have chosen braces, it would take:
- 12-18 months for mild cases
- 18-24 months for moderate cases
- 24-36+ months for severe cases
If you have chosen clear aligners, it would take:
- 6-12 months for mild cases
- 12-18 months for moderate cases
- 18-24+ months for severe cases
Expansion Orthodontics Cost in Singapore
Expansion orthodontics at kohe™ Dental starts at $1,680 ($1,831.20 with 9% GST) for a Traditional Palatal Expander (RPE). An Invisalign Palatal Expander costs $1,928 ($2,101.52 with 9% GST), while MARPE costs $3,528 ($3,845.52 with 9% GST).
These fees cover the expansion phase of your treatment. If you require braces or clear aligners after expansion, your dentist will discuss the recommended treatment with you and provide a separate quotation.
To view the breakdown of fees for expansion orthodontics at kohe™ Dental, please refer to the table below:
| Age Group | Cost | Cost with 9% GST | |
|---|---|---|---|
| Traditional Palatal Expander | Under 12 Years | $1,680 | $1,831.20 |
| Invisalign Palatal Expander | Under 12 Years | $1,928 | $2,101.52 |
| MARPE | 12 Years & Above | $3,528 | $3.845.52 |
Financing Expansion Orthodontics
If you are considering kohe™ Dental for Expansion Orthodontics, there are a few ways to finance your braces treatment to make it more wallet-friendly.
Baby Bonus
Use your CDA Baby Bonus for orthodontic treatment at kohe™ Dental.
kohe™ Dental is a Baby Bonus-certified dental institution.
All Major Banks
We accept interest-free instalment payments from all major banks.
Get up to 12 months interest-free instalments with your credit card. Please take note that for all transactions done with credit/debit cards, we charge a 3.4% + $0.20 surcharge (that Stripe charges us).
Dental and Corporate Insurance
We work with multiple dental and corporate insurance panels like Henner, Cigna International to provide more accessible orthodontic dental care to you.
Please take note that should you wish to use your dental insurance for dental or orthodontic treatments at kohe™ Dental, we will write a claims letter for you which you can then use to claim from your insurer.
Why Choose Expansion Orthodontics at kohe™ Dental?
- Affordable orthodontic treatment options
- Conveniently located on Orchard Road
- Child-friendly clinic
- Orthodontic-focused dentists who treat patients from childhood to mature adulthood
- Open on weekdays and weekends
- Extended opening hours until 7pm
- Experienced in managing complex orthodontic cases
- Prioritises non-extraction approaches where clinically suitable


Expansion Orthodontics: Frequently Asked Questions
What is expansion orthodontics?
Expansion orthodontics creates more space in the upper jaw by gradually widening it with an expansion device. Depending on your age, skeletal development and orthodontic needs, your dentist may recommend a Traditional Palatal Expander (RPE), Invisalign Palatal Expander or MARPE.
What is the best age for expansion orthodontics?
Expansion treatment is often easier while a child is still growing because the bones of the upper jaw have not fully matured. However, there is no single ideal age for every patient. Older teens and adults may also undergo expansion using approaches such as MARPE. Your dentist will assess your growth, jaw structure and orthodontic needs before recommending treatment.
How do I know if my child needs a palatal expander?
Signs may include: crowding, a narrow upper dental arch, certain crossbites or insufficient space for permanent teeth. Your dentist will assess your child’s teeth, bite, jaw development and growth to determine whether expansion is appropriate.
Can adults undergo expansion orthodontics?
Yes, adults may be suitable for certain expansion treatment. However, the approach is different because the upper jaw has finished growing. MARPE uses miniscrews to provide additional skeletal anchorage and may be suitable for older teens and adults.
What are the different types of palatal expanders?
The common options include Traditional Palatal Expanders (RPE), Invisalign Palatal Expanders and MARPE. RPE and Invisalign Palatal Expanders are generally used for growing patients, while MARPE may be suitable for older teens and adults.
Does expansion orthodontics hurt?
You may experience some pressure, tightness or mild discomfort when you first start treatment or after activating your expander. This usually improves as your mouth adjusts to the device.
How long does expansion orthodontics take?
The exact treatment duration depends on the appliance, your age and the amount of expansion required. The active expansion phase may take several weeks or months, followed by a stabilisation period to allow the bone and surrounding tissues to adapt.
Can expansion orthodontics prevent the need for extractions?
Expansion creates additional space for crowded teeth and may reduce the need for extractions in suitable cases. However, some patients may still require extractions depending on their jaw structure, degree of crowding and overall orthodontic needs.
Will I still need braces or clear aligners after expansion?
In most cases, yes. This is because expansion is only the first part of the treatment. Once sufficient space is created, braces or clear aligners can help to realign the teeth and refine the bite. Your dentist will advise whether you require orthodontic treatment after expansion.
Can I use MediSave or insurance for expansion orthodontics?
MediSave generally cannot be used for routine orthodontic treatment. However, eligibility may differ if your treatment involves a claimable surgical procedure. Insurance coverage varies between policies, so check with your insurer about your orthodontic benefits before starting treatment.