Many parents frequently ask this question to Dentajoy’s admin team. So today, Dentajoy is here to clear up the confusion for you.
Let’s get to know Invisalign First, the clear aligners designed specifically for children.

What is Invisalign First?
Invisalign First is one of the products from Invisalign, the world-renowned clear aligner brand from the United States.
The treatment typically takes around 18 months. Afterward, the orthodontist will schedule follow-up appointments to monitor overall changes in your child’s dental structure.
However, if additional problems remain, Invisalign First can smoothly transition into the next phase of orthodontic treatment without delay.
If everything looks good, no further orthodontic treatment may be necessary.
At What Age Can Children Start Invisalign First?
Children can start Invisalign First treatment between the ages of 6–10.
The requirements are:
- The first permanent molars must have already erupted (which normally happens around age 6).
- There should not be more than two consecutive missing teeth in the child’s mouth.
Why is Invisalign First Suitable for Kids?
Invisalign First was designed specifically for children to deliver predictable results while providing a comfortable and positive experience.
It can effectively correct multiple dental issues, including crowding, spacing, and narrow jaws.
Invisalign First is considered Phase 1 treatment, which helps with the following:
- Prevent existing bite problems from getting worse
- Correct current dental issues
- Improve your child’s smile during growth years
- Make Phase 2 treatment (if needed later) shorter an
When Should You Take Your Child to the Dentist?
- First visit: When the first baby tooth erupts or by the age of 1.
- After that: Every 6 months for regular check-ups to prevent cavities and other dental problems.
If you notice signs that your child may need orthodontic treatment, consult an orthodontist early to create a proper treatment plan.
Signs Your Child May Need an Orthodontic Check-up
- Abnormal tooth eruption: crowding, spacing, irregular or misplaced teeth
- Bite problems: open bite, protruding teeth, or underbite
- Chewing issues: difficulty chewing or unusual sounds when eating
- Mouth breathing: frequent mouth breathing or snoring at night
- Swallowing problems: tongue thrusting or unusual swallowing sounds
- Premature baby tooth loss: teeth falling out too early or too late
- Jaw issues: jaw locking, shifting, or difficulty opening the mouth
- Other concerns: thumb sucking, cheek biting, or prolonged pacifier use
Why Choose Dentajoy for Invisalign First?
Dentajoy is the first dental clinic in Thailand to introduce Invisalign treatment. With over 9,000 Invisalign cases successfully treated and a team of highly experienced orthodontists, Dentajoy has become the trusted leader in clear aligner treatment. We also have extensive experience with Invisalign First for kids, ensuring your child’s smile is in expert hands.Plus, with 7 convenient locations, Dentajoy is always near you and ready to care for your family’s smiles.
Denta-joy, a leader in orthodontic innovation and aesthetic dentistry.
“Start your day right—with a smile.”
Get your gum and dental check-up today at Denta-joy, available at all branches.
Click to view each branch location:
Thonglor Branch (Fifty-Fifth Plaza Building)
Seacon Square Branch (Srinakarin – near Suan Luang, On Nut, Pravet)
Pinklao Branch (serving the Thonburi area)
Pattaya Branch (for customers in the eastern region)
Ramindra Branch (serving the expressway–Minburi area)
Bangna Branch (near the end of Sukhumvit, Samut Prakan)
Chaengwattana Branch (serving Nonthaburi–Pathum Thani)