What causes white spots on kids' teeth?
Five causes account for almost every white spot we see: early tooth decay, dental fluorosis, enamel hypoplasia or MIH, post-braces demineralization, and dental trauma. Telling them apart matters, because two are warning signs you can reverse and three are cosmetic. The old advice to "just watch it" is wrong when the spot is early decay.
Early tooth decay
A chalky white patch along the gumline is often the first visible stage of a cavity, before any hole forms. The enamel is losing minerals but hasn't broken down yet. Caught here, it's reversible with a remineralization plan and better brushing. It takes about six months for a cavity to fully form on a baby tooth, so this window is real. Ignore it and it turns brown, then needs a filling.
Enamel hypoplasia and MIH
Creamy-white to yellow-brown patches on the first permanent molars and front teeth point to molar incisor hypomineralization (MIH): enamel that didn't mineralize properly as it formed. It affects roughly 13 to 15 percent of children (about 1 in 7), more common than most parents are told. MIH enamel is softer, more sensitive, and more prone to decay, so these te
Dental fluorosis
Faint white lacy patches or streaks across several teeth usually mean fluorosis: too much fluoride swallowed while the adult teeth were forming under the gums, generally before age 8. Common sources are swallowed toothpaste, supplements given without testing the water first, or well water. Arvada's treated tap water is an unlikely cause. Mild fluorosis doesn't weaken the tooth.
White spots after braces
Bright white outlines where brackets sat are demineralization from plaque that got trapped around the hardware. They show up the day the braces come off. Because they're shallow and sit on the outer enamel, they respond well to ICON after orthodontic treatment.
Dental trauma
A knock to a baby tooth can disturb the permanent tooth forming above it, leaving a white or cream mark on the adult tooth that erupts years later. Even minor falls count. There's no way to prevent the mark after the injury, but ICON or microabrasion can usually blend it once the adult tooth is in.
How we treat white spots
We start with the least-invasive option that fixes the problem, and only move up the ladder if we have to. For many kids that means a remineralization plan and nothing more.
The ladder, from gentlest to most involved:
1. Remineralization first. For early decay and mild spots, fluoride varnish and prescription-strength MI Paste rebuild the enamel surface. Often that's the whole treatment.
2. Curodont for early lesions. A self-assembling peptide that rebuilds early white spots from the inside over several months. It doesn't stain, which makes it a good non-staining alternative to silver diamine fluoride for front teeth.
3. ICON resin infiltration. A thin resin fills the porous enamel and blends the spot in one painless, no-needle visit. Best for shallow, cosmetic white spots and mild brown marks.
4. Microabrasion or bonding. For spots too deep for ICON alone, we gently polish away a thin layer or add tooth-colored composite.
5. Silver diamine fluoride (SDF). Stops active decay, but it turns the treated spot dark, so we use it on back teeth only and never on a visible front tooth.
6. Crowns for severe MIH. When a molar's enamel is crumbling, a crown protects the tooth. Masking isn't enough at that stage.

Does ICON actually work?
For shallow white spots and mild brown marks, yes, usually in one visit. In recent pediatric studies, ICON matched the color of healthy enamel better than fluoride varnish alone, and the improvement held at six months. Deeper or darker yellow-brown spots are less predictable and sometimes need a second pass or bonding.
That honesty matters. Marketing language tends to promise every spot disappears. The reality is that ICON is excellent for the shallow, cosmetic spots and only fair for the deep, dark ones, which is exactly why we check the depth before recommending it.


When ICON isn't the right choice
ICON only works on the outer enamel, so it won't help in four cases, and we'll tell you when your child is one of them.
It's the wrong call when the spot is an active cavity with a hole, when the discoloration runs deep into the tooth, when it's on a baby tooth that's about to fall out anyway, or when MIH has left the enamel severely broken down and the molar needs a crown. Recommending ICON in those situations wastes your money and delays the treatment that would actually help.
Is Arvada's water causing the spots?
Almost certainly not. Arvada's treated tap water runs at or just below the CDC's optimal 0.7 ppm fluoride. The city's published report shows treatment-plant averages of roughly 0.42 and 0.59 ppm, inside the range designed to prevent cavities without causing fluorosis.
So if your child has fluorosis, the tap water is a red herring. The usual sources are a toddler swallowing fluoride toothpaste, a supplement prescribed without testing the water first, or well water at a relative's home outside city limits. The fix is simple: a rice-grain smear of toothpaste under age 3, a pea-size amount after 3, and a quick check of any well water your child drinks regularly. If you're unsure, we'll help you read your water report and build a prevention plan.

What to expect at your child's ICON visit
The visit is painless, needle-free, and usually finished in under an hour.
There's no needle and no drill. If your child is nervous, we offer nitrous oxide (laughing gas) to help them relax. We etch the spot to open the enamel pores, apply the resin so it soaks into the porous enamel, cure it with a light, and polish the tooth smooth. While we work, your child picks from more than 70 movies and chooses their own flavor for polishing paste. Most white spots are handled in a single visit.
Why Arvada families choose Mini Miners
A pediatric specialist, not a general dentist
Dr. Alison Grover completed her pediatric dental residency at UCLA, is a board-certified Diplomate, holds a child-psychology degree from Wellesley College, and is a parent herself. White spots on kids are her daily work, not an occasional add-on.
Built so kids stay calm
Over 70 movies, flavor menus for paste and fluoride, small instruments sized for little mouths, and every room plumbed for nitrous. We offer all levels of sedation, mild, moderate, and deep, for kids who need more support.
Easy from Arvada
Many of our families come from Arvada, roughly 25 minutes up US-287. We're in Erie Commons at Briggs Street and Erie Parkway, with easy parking right out front.
Clear on cost
We accept all major private insurance and offer the Mini Miners Membership Plan for families without dental insurance. You get a written estimate before treatment, every time.
FAQs
Are white spots on my child's teeth permanent?
Not always. Early-decay white spots can be reversed with a remineralization plan if caught before a cavity forms. Fluorosis, hypoplasia, and post-braces spots are usually permanent without treatment, but ICON can lighten or erase most of them in a single visit.
Does insurance or Colorado Medicaid cover it?
Medicaid and CHP+ cover fluoride varnish, sealants, and standard fillings. They don't have a clear code for ICON when it's purely cosmetic. If ICON is documented as arresting an early, non-cavitated lesion, it may qualify under a restorative code; fluorosis and hypoplasia spots are almost always out-of-pocket. We verify your benefits first.
How long do ICON results last?
The resin fills the treated spot for good. Studies commonly report stable color for at least six months, and many patients go years without the spot returning. Good brushing keeps new spots from forming nearby.
Will the white spots come back after treatment?
The treated spot doesn't come back, but new spots can form if the cause isn't addressed. That's why we pair treatment with a prevention plan covering brushing, diet, and the right amount of fluoride.
Is my child old enough for ICON?
ICON is used on permanent teeth, so it's typically for kids whose adult front teeth or molars have come in. We confirm suitability at the exam.
How do I know if it's a cavity or just cosmetic?
An exam, and sometimes an X-ray, tells us whether the enamel is actively losing minerals (early decay) or the spot is a stable cosmetic mark. This changes the treatment, which is why we diagnose before we treat.
Is Arvada's tap water causing the spots?
Almost certainly not. Arvada's treated water runs at or just below the CDC's optimal 0.7 ppm fluoride. Fluorosis usually comes from swallowed toothpaste, supplements, or well water instead.
Do you treat kids from Arvada?
Yes. Many of our families drive in from Arvada to our Erie office, roughly 25 minutes* away by US-287.

Monday 8 AM–5 PM
Tuesday 8 AM–5 PM
Wednesday 8 AM-5 PM
Thursday 8 AM–5 PM
Friday 8 AM–3:30 PM
Saturday Closed
Sunday Closed
Copyright © 2025 Mini Miners Pediatric Dentistry. All rights reserved.
Mini Miners Pediatric Dentistry
61 Erie Pkwy, Unit 101
Erie, CO 80516
Phone: (303) 500-3202
Text: (720) 734-5890
Email: MiniMinersPD@gmail.com
Fax: (303) 552-3700

