Adult Tooth Behind Baby Tooth

Ever noticed a second tooth creeping up behind a baby tooth that hasn’t fallen out yet? It might look a little alarming, but don’t panic just yet. This is a relatively common dental situation in children... and yes, there’s a name (and a plan) for it.

In this My Teeth and Me guide, we’ll unravel everything you need to know about tooth growing behind baby teeth, how to identify it, when to worry, and what pediatric dental services can help.

Understanding the Phenomenon

What Does It Mean When a Permanent Tooth Grows Behind a Baby Tooth?

In simple terms, this condition occurs when the adult (permanent) tooth doesn't wait for the baby tooth to make room and begins erupting behind it.

Is It Considered Normal?

Though it may seem unusual, it's not rare. This condition often corrects itself—but sometimes intervention is needed to guide proper alignment.

Medical Term for the Condition

What Is “Shark Teeth”?

The official (and fun) nickname for this dental quirk is “shark teeth.” Just like sharks, some children can develop two rows of teeth temporarily.

Why It's Called That

Sharks are born with multiple rows of teeth, and when a child’s permanent teeth come in before the baby teeth fall out, it can look similar.

When Does It Usually Happen?

Typical Age Range for Tooth Transition

Most cases occur between ages 5 and 7, particularly during the first stage of permanent tooth eruption.

Early vs. Late Eruption Patterns

Some kids are early bloomers; others take their time. If the timing feels off, it’s worth checking with a dentist.

Signs Your Child Has a Tooth Growing Behind a Baby Tooth

Visual Clues

• A second row of teeth appearing behind the baby teeth
• The baby tooth hasn’t budged
• Crowded appearance in the front lower or upper teeth

Complaints of Discomfort or Pressure

Kids might mention feeling like something is “pushing” inside their mouth—sometimes even before you spot the issue.

Which Teeth Are Most Affected?

Lower Front Teeth

These are the most common culprits for tooth growing behind baby teeth—especially the mandibular incisors.

Upper Front Teeth

Less frequent, but still possible. Look out for crowding or overlapping.

Molars and Less Common Cases

Rarely, molars or canines might grow behind their predecessors, often indicating more complex alignment issues.

Causes of Tooth Growing Behind Baby Tooth

Delay in Baby Tooth Falling Out

If a baby tooth’s root doesn’t dissolve fast enough, it lingers longer than it should, blocking the permanent tooth.

Crowding or Misalignment

Sometimes, there’s simply not enough room... and the new tooth has to go rogue.

Genetics and Oral Anatomy

Yes, it can run in families. If you had it, your child might too.

Is It a Dental Emergency?

If pain persists, or the tooth remains misaligned after a few weeks, call your pediatric dentist.

If the baby tooth is slightly loose and the new tooth looks healthy, give it some time. Nature may take its course.

Teething Rashes and Fever

As a child’s teeth begin to emerge, the teething process can sometimes bring along uncomfortable side effects such as teething rashes and mild fevers.

While these symptoms can be alarming to parents, they are typically temporary and part of the natural process of tooth eruption. 

Natural Shedding vs. Extraction

Gentle wiggling at home—under supervision—can help the process along. If the baby tooth remains firm after several weeks, extraction ensures the permanent tooth gets a clear path.

Should You Wiggle the Baby Tooth?

Safe Techniques at Home

• Clean hands only
• Use gauze if needed
• Wiggle gently in all directions, not just side to side

When to Leave It to the Dentist

If there's pain, swelling, or bleeding—hands off. Let the experts at My Teeth and Me handle it.

Role of X-Rays in Diagnosis

A simple pediatric X-ray will show whether the permanent tooth is erupting correctly or off-track. X-rays also help determine if extraction or orthodontic support is needed.

How a Dentist Evaluates the Situation

In-Office Examination

Your child’s dentist at My Teeth and Me will check mobility, alignment, and position of the baby and permanent teeth.

Factors They Consider Before Recommending Treatment

Age, tooth position, root health, and space availability all come into play.

Treatment Options for “Shark Teeth”

Watchful Waiting

For many children, "shark teeth" are a natural part of the tooth transition process. In cases where the baby tooth is simply a little slow in falling out, a watchful waiting approach is often recommended.

The dentist will monitor the situation over time to see if the baby tooth eventually loosens and falls out on its own. Often, the permanent tooth will gradually push the baby tooth out, and the eruption process will resolve itself naturally without any interference. 

Tooth Extraction

In some cases, the baby tooth may be too stubborn to fall out on its own. If this happens, and the permanent tooth continues to push through without any signs of the baby tooth loosening, a dentist might recommend extracting the baby tooth.

Orthodontic Consultation

For cases where tooth misalignment is a concern, an orthodontic consultation may be necessary. If the transition from baby teeth to permanent teeth leads to crowding or shifting that could affect future dental development, a dentist may refer the child to an orthodontist. 

Aftercare Post Extraction

Pain Management

Children’s ibuprofen or acetaminophen works well for soreness (as advised by your dentist).

Monitoring the Eruption of the Permanent Tooth

Keep an eye out—if the adult tooth doesn’t move into place, follow up is key.

Impact on Speech and Chewing

Short-Term Discomfort

Minor changes in speech or chewing habits may pop up, but usually correct themselves.

Long-Term Development

Prompt care minimizes future orthodontic challenges or speech concerns.

Can It Affect Adult Teeth Alignment?

Possibility of Crowding

If the baby tooth stays too long, it can disrupt the natural line of other incoming teeth.

Orthodontic Prevention Strategies

Early detection and intervention reduce the need for braces down the line.

Role of Space Maintainers

When They’re Needed

If a tooth is extracted early, a space maintainer holds the spot open.

How They Help Permanent Teeth Grow Correctly

They ensure the new tooth erupts in the correct position, avoiding overlap or crowding.

What If It Happens to Multiple Teeth?

Patterned Growth Issues

When multiple teeth grow out of order, full-mouth evaluation is important.

Full-Mouth Assessment

Dentists will check eruption sequences and plan orthodontic solutions if necessary.

Emotional Effects on Children

Embarrassment or Anxiety

Some children may worry about how their teeth look—especially at school.

Parental Reassurance and Support

Reassure your child that it’s common and treatable. Confidence goes a long way.

Tips for Parents at Home

Keep Up With Dental Hygiene

Even “double” teeth need proper brushing and flossing.

Encourage Gentle Tooth Movement

Daily wiggles help loosen baby teeth naturally.

Use Non-Medicated Oral Pain Relief If Needed

Cool compresses or ice pops (sugar-free!) can offer relief.

Regular Dental Visits Are Key

Preventive Monitoring

Routine pediatric check-ups at My Teeth and Me catch issues before they become problems.

Early Detection of Oral Development Issues

Dentists can flag spacing or timing concerns early, ensuring smoother transitions.

Difference Between Normal and Problematic Eruption

Alignment Patterns

A straight erupting adult tooth is less concerning—even if it's behind a baby one.

Timing and Tooth Shape

Odd shapes or too-long delays call for a professional opinion.

Timeline for Permanent Teeth to Move into Position

Once the baby tooth is out, the adult tooth usually shifts forward within a few weeks. Crowding, impaction, or space issues may prevent proper movement.

Foods to Avoid During Tooth Transition

Hard Candies and Chewy Snacks

They can loosen teeth too quickly or cause unnecessary pain.

Better Alternatives for Kids with Loose Teeth

Soft fruits, yogurt, pasta... comfort food for growing smiles!.

What to Expect at the First Dental Visit for Shark Teeth

X-Rays and Visual Exams

Dentists confirm whether treatment is necessary or if nature will take over.

Discussion of Extraction or Monitoring

Together, you and your dentist will create a plan based on your child’s unique case.

Differences Between Primary and Permanent Teeth

Feature	Primary (Baby) Teeth	Permanent Teeth
Appearance	Smaller, whiter	Larger, darker enamel
Durability	Meant to fall out	Long-lasting
Purpose	Hold space	Functional for life

How Orthodontics May Help Later

Interceptive Braces

Early intervention with braces can prevent severe alignment issues.

Retainers for Alignment Maintenance

After correcting placement, retainers help preserve the results.

Insurance and Cost Considerations

Coverage for Pediatric Extractions

Most dental plans cover necessary baby tooth extractions.

Orthodontic Screening Costs

Consultations may be partially or fully covered—check your policy!

Pediatric Dental Guidance at My Teeth and Me

Located in the heart of the Upper East Side, My Teeth and Me is New York’s trusted home for pediatric smiles.

Led by Dr. Liora Benichou, our patient- and family-centered dental home provides expert care for tooth growth behind baby teeth, shark teeth, and every stage of your child’s oral development.

At My Teeth and Me, we follow the American Academy of Pediatric Dentistry guidelines to ensure every child receives personalized, preventive, and therapeutic dental care in a warm and caring environment. Contact us or book an appointment today.

Conclusion

Spotting a tooth growing behind baby tooth might throw you off for a moment... but with the right knowledge, it’s totally manageable. Whether you monitor it at home, schedule a dental checkup at My Teeth and Me, or explore orthodontic options, you’re on the right path.

Stay calm, stay observant—and when in doubt, visit your pediatric dentist.