A new study published in JAMA Network Open on April 9, 2026 found that the children who need dental care the most are the least likely to receive it through free school-based programs. Researchers at NYU College of Dentistry tracked more than 63,000 Bronx children covered by Medicaid and found that kids with no record of a prior dental visit were about 18 percent less likely to enroll in the very programs built to reach them. The finding matters for every family heading into a new school year, because it shows that showing up, and signing the consent form, is often what separates a protected smile from an untreated cavity.
What did the new JAMA study actually find?
The study found a troubling paradox: the children most at risk of tooth decay were the ones least likely to take part in school dental prevention programs. Led by health economist Shulamite Huang, an assistant professor of epidemiology and health promotion at NYU College of Dentistry, the research team analyzed 63,217 Bronx children enrolled in Medicaid and looked at the 1,030 who participated in school-based caries prevention programs. Children who already had a history of dental visits were more likely to sign up, while children with no prior dental care, exactly the group at greatest risk, were roughly 18 percent less likely to participate.
In other words, programs designed to close the gap in children's oral health were quietly reinforcing it. The researchers estimated that reaching higher-need children more effectively could save New York State up to 2.4 million dollars a year in emergency department dental costs, money that is spent when preventable decay turns into a painful crisis.
Key facts and stats
- 63,217 Bronx children on Medicaid were analyzed, and only 1,030 took part in school caries prevention programs (JAMA Network Open, 2026).
- Children with no prior dental visit were about 18 percent less likely to participate in the programs (JAMA Network Open and NYU College of Dentistry, 2026).
- Better recruitment of high-need children could save New York State up to 2.4 million dollars a year in emergency dental costs (NYU College of Dentistry, 2026).
- An earlier NYU school program prevented roughly 80 percent of cavities with a single non-invasive treatment (NYU College of Dentistry, 2023).
Why do the highest-need children get left out?
The children get left out because of the everyday barriers that surround a school program, not because the treatment fails. The study points to gaps in outreach, consent forms that never make it home or back, and program designs that unintentionally favor families already connected to a dentist. A child whose parents have never navigated a dental office is also less likely to return the paperwork that a school clinic requires, so the family that would benefit most is often the one that never opts in.
This is a participation problem, not a treatment problem. The same families that face transportation hurdles, language barriers, or unpredictable work schedules are the ones a school-based program is meant to help, yet those same pressures make it harder to complete enrollment. The lesson for parents everywhere, including here in Abbeville, is simple: a free program only protects your child if your child is actually signed up and seen.
What is a school-based dental program and does it work?
A school-based dental program brings prevention directly into the classroom, and the evidence says it works very well when children take part. Instead of asking families to reach a clinic, trained providers visit the school and apply protective treatments such as dental sealants, fluoride varnish, and in some cases silver diamine fluoride, a liquid that can stop early decay without a drill. The NYU work grew out of the CariedAway trial, which compared silver diamine fluoride plus fluoride varnish against traditional sealants in schools and found both approaches similarly effective at preventing cavities.
The effectiveness is not in doubt. An earlier NYU College of Dentistry study reported in 2023 that a single, one-time, non-invasive treatment prevented roughly 80 percent of cavities in participating children. The problem the 2026 study identifies is upstream of the chair: if the highest-risk children never enroll, even an 80 percent success rate cannot reach them.
What does this mean for families in Abbeville right now?
For Abbeville families, the takeaway is to treat a family dentist as the safety net, not the school program alone. Not every community has a school-based clinic, and as this study shows, even where one exists it may not reach your child. The most reliable path is a regular dental home where your child is seen every six months, cavities are caught early, and sealants or fluoride can be applied on a schedule your dentist recommends. A local practice such as Abbeville Family Dental can provide that continuity of care from the toddler years through high school.
The timing also lines up with the calendar. As we covered in our guide to back-to-school dental checkups in 2026, the weeks before classes begin are the ideal window to catch and treat decay before it interferes with learning, eating, or sports. If your child qualifies for a school-based program, enroll, but pair it with a standing appointment at a family or pediatric practice so nothing slips through the cracks.
How can parents make sure their child does not fall through the cracks?
Parents can close the gap by acting on both fronts, the school and the dental office, before the school year gets busy. The table below compares what each option is best at, so families can use them together rather than relying on one alone.
| Feature | School-based program | Family or pediatric dentist |
|---|---|---|
| Cost to family | Usually free, often Medicaid billed | Insurance, Medicaid, or self pay |
| Requires enrollment or consent form | Yes, and this is where many miss out | No, you book directly |
| Services offered | Sealants, fluoride varnish, sometimes silver diamine fluoride | Full exams, cleanings, x-rays, fillings, sealants, referrals |
| Ongoing relationship | Limited to visits at the school | A lasting dental home every six months |
| Best used for | A convenient extra layer of prevention | The primary safety net for your child's teeth |
Return every consent form a school sends home, even if you are not sure your child needs it, because that single signature is often the deciding factor. Keep a standing twice-a-year appointment with a dentist, ask specifically about sealants for the back molars once they come in, and confirm whether your child qualifies for a school program in your district. If your family is on Medicaid, remember that children's dental benefits are a protected part of the program, a point we explained in our coverage of the Harvard study on Medicaid dental cuts.
What the researcher said
"Our study suggests that children who may need these services the most are the ones least likely to receive them." Shulamite Huang, assistant professor of epidemiology and health promotion at NYU College of Dentistry, in comments accompanying the 2026 study.
Frequently asked questions
Where was this study published and who conducted it?
The study was published in JAMA Network Open on April 9, 2026 and was led by Shulamite Huang, a health economist and assistant professor at NYU College of Dentistry. It analyzed 63,217 Bronx children enrolled in Medicaid.
Are school-based dental programs still worth joining?
Yes. When children take part, these programs are highly effective, and earlier NYU research found a single non-invasive treatment prevented about 80 percent of cavities. The concern raised by the 2026 study is that the highest-risk children often do not enroll, so parents should sign up and return every consent form.
My town does not have a school dental program. What should I do?
Rely on a family or pediatric dentist as your child's dental home. Regular checkups every six months, plus sealants and fluoride when your dentist recommends them, deliver the same protective treatments the school programs provide.
At what age should my child first see a dentist?
The American Academy of Pediatric Dentistry recommends a first dental visit by the child's first birthday or within six months of the first tooth appearing. Early visits build a routine of care that lowers the risk of decay later.
Updated July 2026. Primary sources: NYU College of Dentistry news release, News-Medical coverage of the JAMA Network Open study, and the American Academy of Pediatric Dentistry.
