This is the canonical Glisten Dental guide to children’s dentistry, written for parents in Gilbert, Mesa, Glendale, and the Phoenix metro. Every stage from pre-eruption oral care through the teenage wisdom-tooth years. What’s evidence-based, what’s marketing, what to do when your child is scared, and how to set up lifelong oral health habits. Last updated 2026.
Table of contents
- Ages and stages — quick reference
- The first dental visit — why age 1
- Baby tooth care (0-3)
- Toddler to preschool (3-6)
- Elementary years (6-12)
- Teenagers (12-18)
- Fluoride — doses, safety, controversies
- Sealants
- Orthodontic screening
- Wisdom teeth evaluation
- Dental emergencies in children
- Special needs and anxiety
- Cost, insurance, and AHCCCS for kids
- Frequently asked questions
1. Ages and stages — quick reference
Rough timeline of what’s happening in a child’s mouth and when:
- 6-10 months: first baby tooth erupts (usually lower central incisors)
- 12 months: first dental visit (AAPD standard)
- 2.5-3 years: all 20 baby teeth typically present
- 6 years: first permanent molars erupt behind last baby molars. First baby teeth start falling out. Permanent front teeth erupting shortly after.
- 7-8 years: permanent lateral incisors erupt. Mixed dentition (some baby, some permanent teeth).
- 9-12 years: baby canines and molars being replaced by permanent canines and premolars
- 12-13 years: all baby teeth typically gone. Second permanent molars erupt (around age 12).
- 16-20 years: wisdom teeth evaluation and possible extraction
- 17-18 years: jaw growth typically complete; permanent restoration decisions become appropriate
2. The first dental visit — why age 1
The American Academy of Pediatric Dentistry has recommended the first dental visit by age 1 or within 6 months of the first tooth erupting (whichever comes first) for over 20 years. The evidence has only strengthened. Why it matters:
- Early-childhood caries is startlingly common — affecting roughly 23% of children ages 2-5. Most of it is preventable with early parental education.
- Baby teeth decay has cascading consequences. Dental pain affects eating, sleep, speech development, and school readiness. Infected baby teeth can damage developing permanent teeth beneath them.
- Positive early experiences prevent lifelong dental anxiety. Children whose first visits are routine, pleasant, and non-threatening grow into adults without dental fear. Children whose first visit is a 4-year-old emergency filling often grow into anxious avoiders.
- Fluoride timing matters. Appropriate fluoride exposure during tooth development strengthens enamel; over-exposure causes fluorosis. Professional guidance individualizes the plan.
What a 12-month first visit looks like: 15-20 minute appointment. Lap exam (child in parent’s lap), quick visual inspection of erupting teeth, evaluation of bite development, discussion with the parent about brushing technique, bottle/cup habits, and diet. We don’t clean, X-ray, or fluoride-treat at the first visit unless there’s a specific indication — it’s about education and relationship-building.
3. Baby tooth care (0-3)
Before first tooth: wipe gums with a clean damp cloth after feedings. Gets infant used to oral care.
First tooth through age 3: brush twice daily with a soft-bristled infant brush. Rice-grain-sized smear of fluoride toothpaste starting when the first tooth erupts. Yes, fluoride — the AAP and ADA both updated this recommendation years ago. The decay-prevention benefit outweighs the minimal fluorosis risk at that quantity.
Bottle and sippy cup rules that matter:
- Never put an infant to bed with a bottle of anything but water. “Bottle rot” — severe decay of baby teeth from milk or juice pooling during sleep — is the most common serious pediatric dental problem and it’s 100% preventable.
- Transition to a regular cup by age 12-18 months.
- Sippy cups with sugary drinks used continuously throughout the day are functionally equivalent to a bottle.
- Water is the default beverage. Milk at mealtimes. Juice severely limited or eliminated.
First signs of decay: white chalky spots near the gum line, most commonly on the upper front teeth. Early white-spot lesions can sometimes be halted or reversed with fluoride varnish application and dietary changes. Brown or black spots indicate the decay has progressed.
4. Toddler to preschool (3-6)
Parents continue brushing for the child. Pea-sized fluoride toothpaste from age 3. Encourage spitting out excess, but don’t obsess — appropriate quantities are safe if swallowed.
Start flossing when any two teeth are in contact. Floss picks designed for children (not adult-style floss) make this manageable. Decay between baby molars is common in 3-6 year olds and is preventable with consistent flossing.
First cleaning and X-rays typically happen between ages 3-4, when the child can sit still for 15-20 minutes and trust the dental team. Bitewing X-rays once the posterior baby molars have contacts — usually by age 4-5.
Diet matters more than most parents realize. Frequency of sugar exposure is worse than total quantity — sipping a sippy cup of juice over 2 hours does more damage than chugging the same amount in 3 minutes. Fruit, cheese, vegetables, nuts, and water are dental-friendly snacks. Gummies, fruit leather, and raisins are deceptively sticky and acidic despite the “healthy” marketing.
Thumb-sucking and pacifier use typically self-resolve by age 4-5. Persistence past age 5-6 can cause open-bite and other orthodontic issues; addressing the habit earlier than later is easier.
5. Elementary years (6-12)
The first permanent molars erupt around age 6 — behind the last baby molars, sometimes confusing parents who think they’re seeing a baby tooth come in. These are the most cavity-prone teeth in the human mouth (deep grooves on the chewing surface). Sealants applied by your dentist protect them for 5-10 years. Apply as soon as the molar is adequately erupted; don’t wait.
Lost baby teeth and new permanent teeth: upper and lower central incisors first, around age 6-7. Lateral incisors next, then canines and premolars, then second molars. The sequence has individual variation but follows a predictable general pattern.
Electric toothbrush around age 6-7. Most kids this age enjoy the tech. Pressure sensors prevent over-scrubbing. Timers help them brush the full 2 minutes. Kids under 8 typically need parental supervision or re-brushing even with electric brushes — manual dexterity isn’t quite there yet.
Mouthguards for contact sports. Custom mouthguards ($150-$300 at our Gilbert office) reduce dental injuries substantially compared to boil-and-bite alternatives. For Arizona kids in soccer, flag football, martial arts, and hockey, they’re one of the single best dental investments you can make.
Orthodontic screening around age 7 per the American Association of Orthodontists recommendation. Not because most 7-year-olds need braces, but because a subset benefit from early interceptive treatment (expanders, limited braces for specific issues) that become harder or less effective after age 10-12.
6. Teenagers (12-18)
The hardest age group for dental care. Autonomy, busy schedules, social pressure, and not-yet-fully-developed judgment. Common teen-specific issues:
- Orthodontic treatment frequently happens in this window. Cleaning around braces or using aligners consistently requires effort many teens resist.
- Sports drinks and energy drinks consumed continuously during practice damage enamel at rates we haven’t historically seen. Talk to your teen about water for hydration.
- Vaping and smoking starts in this window for many teens. Oral consequences include dry mouth, nicotine staining, increased decay, higher gum disease risk, and oral cancer risk from long-term use.
- Wisdom teeth begin causing symptoms at 16-20. Annual panoramic X-rays during this window monitor development. See our wisdom tooth pain page.
- Eating disorders — bulimia specifically causes a characteristic pattern of enamel erosion on the tongue-facing side of upper teeth. Dentists sometimes identify eating disorders before anyone else. We handle these discoveries with care and confidentiality.
Honest conversations about vaping, sports drinks, and hygiene matter more than rules at this age. Teens respond better to direct evidence-based information than to reflexive prohibitions.
7. Fluoride — doses, safety, controversies
Fluoride is one of the best-studied substances in public health. The evidence for its decay-prevention effect is overwhelming. It’s also the subject of sustained activism against its use, some of which is rooted in real historical incidents (over-fluoridation causing fluorosis) and much of which is rooted in misinformation.
Our practical guidance:
- Fluoride toothpaste from first tooth. Rice-grain size until age 3, pea size after. Standard 1,000-1,500 ppm OTC toothpaste is appropriate.
- Professional fluoride varnish at dental cleanings 2x per year for moderate-to-high risk children. Optional for low-risk kids.
- Fluoride supplements (drops or tablets prescribed for children in non-fluoridated water areas) — we prescribe based on water source analysis and caries risk. Not needed for most children on municipal water.
- Water fluoridation — most Phoenix-metro municipal water is fluoridated at optimal levels. If you’re on well water, test fluoride content.
Fluorosis risk: real but manageable. Excessive fluoride during tooth development (ages 0-8, when permanent teeth are calcifying under the gums) causes mild white mottling of enamel. Severe fluorosis is rare in current practice. Mild fluorosis is cosmetic and typically not noticeable without close examination.
8. Sealants
Dental sealants are thin plastic coatings applied to the chewing surfaces of back teeth to fill in the deep grooves where decay starts. Reduce decay in sealed teeth by 80% for at least 2 years and by roughly 50% over 4-5 years. The single most cost-effective decay-prevention intervention in dentistry.
Application: 15-20 minutes per tooth, no drilling, no anesthesia. The tooth surface is cleaned, a mild acid prep is applied, then the sealant flows into the grooves and is cured with a blue light. Cost $40-$60 per tooth, typically 100% covered by dental insurance.
When to apply: as soon as the permanent first molars erupt (around age 6) and again when the permanent second molars erupt (around age 12). Sometimes applied to deeply-grooved baby molars in high-risk children.
Lifespan: 5-10 years before needing replacement. We check sealant integrity at every cleaning.
9. Orthodontic screening
Age 7 screening is the recommended timeline. Most 7-year-olds don’t need treatment. A subset benefit from early interceptive treatment for specific issues:
- Crossbite (upper and lower teeth misaligned laterally) — easier to correct with an expander during growth than later
- Severe crowding where early space management simplifies later comprehensive treatment
- Habits like persistent thumb-sucking causing open bite
- Trauma to permanent incisors requiring orthodontic repositioning
- Skeletal discrepancies where growth modification (headgear, functional appliances) is easier in the 7-10 age window
Comprehensive orthodontic treatment typically happens between ages 10-14 when most permanent teeth are erupted. Invisalign Teen is an option for motivated adolescents (see our Invisalign guide); traditional braces remain excellent for complex cases.
We perform orthodontic screening during routine exams and refer to orthodontists when treatment is indicated.
10. Wisdom teeth evaluation
Panoramic X-ray around ages 16-18 reveals wisdom tooth position. Current evidence-based approach:
- Asymptomatic, fully erupted, cleanable wisdom teeth: leave alone, monitor
- Symptomatic wisdom teeth (pain, recurring infection, decay): extraction
- Impacted wisdom teeth pressing on second molars: extraction before damage to second molar
- Impacted wisdom teeth with cyst formation: surgical removal
- Wisdom teeth in orthodontic patients: individualized decision; not automatic extraction anymore
The old practice of routinely extracting all wisdom teeth around age 18 has evolved. Extraction is indicated for specific clinical reasons, not by default.
11. Dental emergencies in children
See our dedicated blog post: What to Do if Your Child Chips a Tooth — A Gilbert Parent’s Guide, and our canonical emergency guide.
Quick references for parents:
- Knocked-out baby tooth: do not reimplant. Can damage developing permanent tooth. See us for evaluation.
- Knocked-out permanent tooth (child over 6-7): 30-60 minute reimplantation window. Same protocol as adults. Immediate emergency.
- Chipped tooth: save the fragment in milk, come in. Minor chips repaired with bonding.
- Severe toothache in a child: usually baby tooth with pulp involvement. Same-day treatment.
- Trauma with head or neck injury: concussion screening takes priority. ER first.
12. Special needs and anxiety
Children with dental anxiety, autism spectrum conditions, ADHD, sensory sensitivities, or specific medical complexity sometimes need specialized pediatric dental care. At Glisten Dental we handle moderate anxiety with behavior management techniques (tell-show-do, positive reinforcement, distraction) and nitrous oxide for cooperative kids with mild anxiety.
For children who need more than we can appropriately provide — severe anxiety, autism spectrum with significant sensory challenges, medical complexity requiring hospital-based care, or needs beyond routine — we refer to pediatric dentists with specialized training. The referral network is strong in the Phoenix metro and we coordinate follow-through.
13. Cost, insurance, and AHCCCS for kids
Most dental insurance covers pediatric care generously: preventive services 100%, basic services 80%, orthodontic coverage at 50% up to lifetime max ($1,500-$2,500 typical).
AHCCCS (Arizona Medicaid) pediatric dental is one of the better Medicaid dental programs in the country. Covers comprehensive dental care for enrolled children under 21 including cleanings, fluoride, sealants, fillings, crowns, extractions, and many orthodontic cases with medical necessity documentation. See our AHCCCS provider page (please confirm current network participation when scheduling).
TRICARE Dental covers active duty military family members at 100% preventive, 20% cost-share basic, 50% orthodontic up to $1,750 lifetime max per child. See our TRICARE guide.
Uninsured families can access our membership plan for discounted rates on preventive and basic care (see the membership page). Payment plans available for larger treatments.
14. Frequently asked questions
Does my child really need to go to the dentist at age 1? Yes. The visit is non-threatening (lap exam, 15 minutes) and establishes the foundation for lifelong dental health. Skipping is one of the most common root causes of preventable childhood decay.
Is fluoride safe for my child? At appropriate doses, yes — overwhelming evidence. Excessive doses during tooth development cause cosmetic mottling (mild fluorosis). We calibrate fluoride based on your water source, home care, and caries risk.
Should my child have a pediatric dentist or a general dentist? Either works well. Pediatric dentists have 2-3 years of additional training specifically in children’s dentistry, anxious or special-needs children, and hospital-based dentistry. General dentists see children routinely and handle most pediatric care well. For children with specific anxiety or complexity, pediatric dentists are a better fit. For routine care of cooperative children, general dentists with pediatric experience (like us) work well.
When should my child’s baby teeth fall out? First ones around age 6 (lower central incisors), last ones around age 10-12 (second baby molars). Individual variation is common. A baby tooth still present at 13 or a baby tooth lost years before expected warrants evaluation.
My child has bad breath all the time. Is that normal? No — persistent bad breath in a child usually indicates tonsil issues, nasal congestion (mouth breathing), or poor oral hygiene. Rule out medical causes; evaluate oral hygiene technique.
Do children need flossing? Yes, when any two teeth are in contact. Decay between baby teeth is common and preventable. Floss picks designed for kids are the most practical option.
What if my child is scared of the dentist? Very common and manageable. Early positive visits prevent most anxiety. For existing anxiety, we use tell-show-do technique, behavior management, and nitrous oxide for cooperative kids. For severe anxiety, pediatric dental specialists with sedation training are the right referral.
For children’s dental appointments in Gilbert, Mesa, or Glendale, call the practice nearest you: Gilbert 480-331-4955, Mesa 602-932-2555, or Glendale 480-630-4446. First visits for children age 1+ are welcome. We’ll set up the foundation for lifelong oral health.