Custom 3D Laser Sintered Palatal Expanders for Kids in Decatur, GA
Medically reviewed by Dr. Noam Green, DMD and Dr. Lauren Gordon, DMD | Last updated September 2026
At Green Orthodontics, we spend a lot of time thinking about width. A child’s upper jaw grows on its own schedule, and there is a window, usually opening once the first adult molars arrive around age eight or nine, when a narrow palate is far easier to widen than it will ever be again. A custom 3D printed palatal expander is how we use that window.
At our office, Dr. Noam Green builds every expansion recommendation around one question: is this jaw narrow enough that waiting will cost your child options later? Sometimes the answer is no, and we say so. When it is yes, call or text our office to schedule an evaluation.
What Is a Custom 3D Laser Sintered Palatal Expander?
A custom 3D laser sintered expander is a digitally designed, fixed appliance that gently widens a child’s narrow upper jaw. Instead of choosing a metal band from a box of stock sizes and squeezing it onto the back molars, we have the band printed in metal from a precise digital scan of your child’s mouth.
That one change makes a real difference: the appliance fits better, feels more comfortable, and is easier to keep clean than a traditional one. We have used laser sintered custom expanders since 2015 and consider this the standard of care whenever a fixed expander is the right tool.
How Is It Different from a Traditional Palatal Expander?
The biggest difference is how it is made and how few appointments it takes. A traditional rapid palatal expander uses prefabricated steel bands that require separators, several try-in visits to size the bands, an impression, and a return trip to cement the appliance. That is three or four appointments before treatment even begins.
A digitally designed expander removes almost all of that. Because we already have a scan on file, the appliance arrives ready for a single, simple delivery. The advantages add up quickly:
- No separators and no messy impressions
- Two to three fewer appointments before treatment starts
- A rigid, bonded palatal expander that delivers more predictable jaw widening
- Better hygiene, since the appliance rests on the tooth surface instead of between teeth
- A more comfortable, better-fitting result for your child
The research backs this up. A systematic review on the accuracy of 3D printing in orthodontics supports what we see every day: digital scan based fabrication delivers a clinically accurate fit and avoids the trial and fit steps of stock bands. A 2025 review on the impact of 3D printing and CAD/CAM technology on orthodontic outcomes also found real gains in both accuracy and treatment efficiency.
Rigidity matters as well. A stock band can flex during widening, which can shift some intended skeletal expansion into tooth tipping. Current evidence on the vertical effects of bonded designs is still evolving, and we choose the appliance case by case.
What Problems Does an Expander Correct?
Expansion treats transverse problems, which means the upper jaw is too narrow compared to the lower jaw. It is not a fix for front-to-back issues like overbites, underbites, or front-tooth crossbites, which need different tools.
The situations we most often treat with a maxillary expander include:
- Posterior crossbite, where upper back teeth bite inside the lower teeth
- A narrow palate that leaves too little room for adult teeth to come in
- A functional shift, where a child bites off center to make the jaws fit
That last one is worth catching early. Children with a unilateral posterior crossbite show measurably more condylar asymmetry than children without one, and early functional correction has been shown to improve that asymmetry during the mixed dentition years. Waiting is not neutral. CBCT analysis published in AJODO found that adolescent and adult crossbite patients carry progressively greater condylar and ramal asymmetries than younger patients do.
A narrow upper jaw can also be linked to nasal and airway concerns. The evidence here is encouraging: a systematic review of 3D analyses of rapid maxillary expansion documents significant nasal cavity volume increases, and systematic reviews document significant increases in nasal cavity volume and upper airway dimensions after expansion in children. We are careful not to overpromise on this. When airway comes up, we coordinate with your pediatrician, ENT, or sleep specialist. Airway diagnosis is a team decision that may involve a sleep study, and as orthodontists we do not diagnose sleep-disordered breathing ourselves.
Part of the airway improvement measured after expansion also reflects normal growth in this age range, so we do not attribute it to the appliance alone.
Expansion is not the right tool for every case. It does not fix front-to-back problems like overbites, underbites, or anterior crossbites. For adults past sutural fusion, MARPE (mini-implant assisted rapid palatal expansion) or SARPE (surgically assisted rapid palatal expansion) are the right tools instead. And for very mild transverse deficiencies, we often handle expansion with light dental widening during comprehensive treatment rather than a fixed expander.
Is My Child the Right Age for Early Expansion?
Expansion works best during Phase 1, once the upper first adult molars have erupted, usually around age 8 or 9. Those molars act as the anchors that hold the appliance in place.
Waiting narrows the window. As the canines and premolars come in, the anchorage becomes less stable and the growth plate in the roof of the mouth fuses through a set of predictable maturational stages. Once that fusion is far enough along, non-surgical expansion stops being reliable. That is why the American Association of Orthodontists recommends a first orthodontic check by age 7, before the opportunity passes. This kind of Phase 1 orthodontic treatment is far more predictable in a younger child, and we avoid anchoring expansion on baby teeth.
What Happens at the Delivery Appointment?
Delivery is quick and comfortable, and most kids are surprised by how easy it is. We try the expander in, place a light-activated bond, and cure it with a curing light. That is the whole visit.
There are no separators and no bite sticks to test band sizes, the parts kids tend to dislike most. Because the appliance was built to fit your child, it seats cleanly the first time, and your child leaves ready to begin the gentle widening at home.
Common Parent Questions
Plan on about five to six months total in the mouth for a typical case. That breaks into a short active phase followed by a longer holding phase while the jaw stabilizes.
Here is how the timeline usually looks:
- Turning phase: each turn of the screw widens the appliance by 0.25 mm, and most cases need 20 to 30 turns, or about 7 to 8 mm
- At roughly one turn per day, active widening takes about a month
- Holding phase: the expander stays in for five to six months total so new bone can form and set
Sometimes we leave it in a little longer as an anchor for the rest of Phase 1, since it works well alongside braces. Long term stability of expansion depends on retention, which is why we build a retention plan before the appliance comes off.
An expander is not painful, though it feels new for the first few days. Children typically notice mild pressure after a turn and a short adjustment period with speaking and eating, all of which fade quickly.
Most kids adapt within about a week. We give every family clear instructions for those first days, and you can pull them up any time on our treatment and after-care instructions page.
Daily care is simple: keep it clean, follow the turning schedule we give you, and stick to expander-friendly foods. Because it bonds to the tooth surface instead of sitting between teeth, brushing around it is easier than with older banded designs.
Rather than repeat the full instructions here, we keep them current in one place. You can find turning steps, food guidance, and cleaning tips on our treatment and after-care instructions page, which is always the most up to date version.
The two most common calls we get are a loose expander or food caught under the framework, and both are handled the same way: call our office and we will bring your child in. There is nothing to repair at home.
Can It Be Combined with Braces or the Invisalign Expander?
Yes. A fixed expander is fully compatible with braces on the surrounding teeth, and it can serve double duty as an anchor during the rest of Phase 1.
We also offer the removable Invisalign Palatal Expander for families who prefer it. Both can be effective, and the right choice comes down to your child’s case, growth stage, and how much true skeletal widening we need. The laser sintered appliance is bonded in place, while the Invisalign version is removable and worn full time except for brushing. You can compare both on our early and specialty treatment options page.
How Much Does Treatment Cost?
The exact fee depends on your child’s case, so we confirm it at your consultation rather than quoting one number for everyone. Here’s a range to work from in the meantime.
A standalone expander, with no braces or Invisalign, typically runs between $1,500 and $2,000. When the expander is part of a Phase I plan alongside braces or Invisalign, the total usually falls between $4,000 and $5,000. The fee is the same either way, whether your child gets a 3D laser sintered metal expander or an Invisalign palatal expander.
Insurance can bring your out of pocket cost down from there. We file claims for any plan that includes orthodontic benefits, and we offer in-house, interest-free financing starting at $99 a month.
Your consultation includes a personalized fee breakdown, so you’ll leave knowing what your family is actually paying and how you’d like to pay it. No surprises later.
Why Choose Green Orthodontics for Custom 3D Laser Sintered Expansion
Families choose us because this digital workflow is a core strength of our practice, not an add-on. We have placed custom printed expanders since 2015, spending more than a decade refining the design for comfort, predictable fit, and ease of use.
A few reasons parents trust our team with early expansion:
- Every new patient receives a digital scan at intake, so a custom appliance is ready without extra scanning visits
- We run 3D printing in office for appliances like retainers and mouthguards, so this is everyday work for us
- Dr. Green is double board certified by both the American Board of Orthodontics (ABO) and the Royal College of Dentists of Canada (RCDC)
- Past faculty at the Georgia School of Orthodontics (Assistant Program Director and Professor), now mentoring orthodontists, dentists, and students who shadow at our practice
- A responsible, coordinated approach to airway concerns rather than overpromising
- Convenient before-school and after-school appointments for busy families
You can learn more about Dr. Noam Green and his background and see our full orthodontic treatment options to understand how expansion fits into the bigger picture. For background, it also helps to understand how a palatal expander widens a narrow upper jaw.
Book Your Child’s Consultation Online, by Call, or Text
If your child has a narrow jaw, a crossbite, or crowding, an evaluation is the best next step. Early answers give the widest range of options, and expansion is most predictable when we start at the right age.
Green Orthodontics is proud to care for growing smiles. Booking is easy: fill out our online form, or simply call or text us. Visit Green Orthodontics or reach our team to request a visit today, and let us give your child a confident, healthy foundation for years to come.