Lip-Tie and the Front Teeth Gap in Children

Quick answer

A lip tie can cause a gap between the front teeth, known as a diastema, when a thick or tight labial frenulum attaches too low on the gum and physically prevents the teeth from closing together. A lip tie is a condition where the band of tissue (frenulum) connecting the upper lip to the gums is unusually thick, tight, or restricts normal movement. While not all gaps are caused by a lip tie, an evaluation by a pediatric dentist or orthodontist can determine if a frenectomy—a minor surgical release of this tissue—is needed to allow for natural tooth alignment or as part of orthodontic treatment.

At a glance

• Prevalence: A noticeable gap between the two upper front teeth (median diastema) is present in an estimated 98% of children aged 6-8 years as the permanent teeth erupt, but most close naturally.
• Persistent Gap: Only about 2-4% of these gaps persist into adulthood without intervention.
• Surgical Code: A maxillary frenectomy is often billed under dental procedure code D7960.
• Typical Age for Evaluation: Orthodontists often assess the frenulum's role in a persistent gap around ages 8-11, once the permanent canine teeth begin to erupt.
• Healing Time: Post-frenectomy, the initial soft tissue healing typically takes 1-2 weeks.

What is a lip tie?

A lip tie, specifically a maxillary labial frenulum, is the band of soft tissue that connects the inside of the upper lip to the gum above the two front teeth. In some children, this frenulum is thicker, tighter, or attaches lower on the gum ridge than is typical. While often discussed in the context of infant feeding, its structure can also influence dental development, potentially creating a gap (diastema) by inserting between the central incisor teeth and preventing their natural closure.

How a lip tie causes a gap between front teeth

The two upper front teeth (central incisors) typically emerge with some space between them, which usually closes as the surrounding teeth, like the canines, erupt. However, when a prominent or low-attaching labial frenulum sits between these teeth and attaches to the gum's crest, it acts as a physical barrier. This tissue prevents the natural inward movement of the teeth, maintaining the space. This specific type of gap is called a "maxillary median diastema."

Lip tie gap vs. other causes of spacing

Not all gaps between the front teeth are due to a lip tie. It's important to distinguish the cause to guide appropriate treatment.

Cause of Gap	Description	Common Age Observed
Prominent Labial Frenulum (Lip Tie)	A thick, low-attaching frenulum physically blocks teeth from moving together.	Often noticed as permanent front teeth erupt (ages 6-8) and persists.
Normal Developmental Spacing	Natural space present as baby teeth fall out and permanent teeth erupt; often closes on its own.	Ages 6-10.
Missing or Peg-Shaped Lateral Incisors	The teeth next to the front teeth are absent or undersized, leaving excess space.	Becomes apparent after permanent lateral incisors should have erupted (by age 9).
Habit (e.g., Thumb Sucking)	Prolonged pressure from habits can push front teeth forward and apart.	Any age the habit is active.
Generalized Spacing	Overall spacing between all teeth due to small teeth or a large jaw arch.	Any age after permanent teeth are in.

Symptoms and signs of a problematic lip tie in children

Beyond the visible gap, a lip tie that may require attention can present with other signs:

• A visible, thick, or pale band of tissue connecting from the lip to the gum between the front teeth.
• Inability to fully flange or lift the upper lip, which can sometimes complicate oral hygiene.
• The gum tissue between the front teeth may blanch (turn white) when the lip is pulled upward.
• Persistent gap remains after the eruption of the permanent canine teeth (usually around ages 10-12).
• Associated gum recession or notching on the front teeth due to excessive frenulum pull.

When is a frenectomy recommended for a gap?

A frenectomy is not always the first step. The decision is typically made by a dentist or orthodontist and depends on timing and other factors:

1. Observation First: Most gaps in young children (ages 6-8) are observed, as they may close naturally.
2. Permanent Canine Eruption: If the gap persists as the permanent canine teeth begin to come in (around ages 10-12), the frenulum's role is re-evaluated. These teeth provide natural inward pressure to close the space.
3. Orthodontic Planning: A frenectomy is often recommended before or during orthodontic treatment with braces or aligners to close the gap. If the tissue isn't released, the gap is very likely to reopen after braces are removed.
4. Gum Health: It may be recommended if the frenulum attachment is contributing to gum recession or hygiene challenges.

The frenectomy procedure for a lip tie

A maxillary frenectomy is a minor oral surgery to release the restrictive tissue. The goal is to detach the frenulum from its low position on the gum, allowing it to sit higher and remove the barrier between the teeth.

• Methods: The procedure is commonly performed with a soft-tissue dental laser or sterile surgical scissors. Laser procedures often result in less bleeding and discomfort.
• Setting: It is routinely done in a dental or orthodontic office.
• Anesthesia: Local anesthesia (numbing gel and/or an injection) is used to ensure the child feels no pain during the procedure, which usually takes only a few minutes.
• Aftercare: Stitches may or may not be used, depending on the technique. Detailed aftercare instructions for frenectomy recovery are provided.

What to expect after a lip-tie frenectomy

Recovery is generally straightforward, especially in children who heal quickly.

• Immediate Aftermath: The area will be numb for 1-2 hours. Minor bleeding or oozing is normal for the first day.
• Discomfort: Over-the-counter children's pain relievers (as directed by your provider) can manage any soreness for a few days.
• Healing Appearance: A white or yellowish tissue forms over the wound site within a day or two; this is normal healing tissue, not an infection.
• Diet: Soft, cool foods are recommended for the first 1-3 days. Avoid crunchy, spicy, or hot foods.
• Oral Hygiene: Gentle brushing can continue, avoiding the surgical site directly for the first day or as advised.
• Stretches: The provider may or may not recommend gentle stretching exercises to prevent frenectomy reattachment and promote ideal healing.

Steps to take if you suspect a lip tie is causing a gap

If you are concerned about a persistent gap in your child's front teeth, follow these steps:

1. Schedule an Evaluation: Make an appointment with a pediatric dentist or orthodontist for a professional assessment.
2. Discuss History: Share your observations about the gap, any feeding history in infancy, and any oral habits (like thumb sucking).
3. Ask About Timing: Inquire if the gap is likely to close on its own or if intervention will be needed, and when the ideal time for that would be.
4. Explore Options: If a frenectomy is suggested, discuss the technique (e.g., laser vs. scissors), the rationale for timing, and what the recovery entails.
5. Coordinate Care: If your child is or will be in orthodontic treatment, ensure the dentist and orthodontist communicate about the plan and timeline for the frenectomy relative to braces.

Frequently Asked Questions

Does every gap between front teeth need a frenectomy?

No. Many gaps in young children close naturally as other permanent teeth erupt. A frenectomy is typically considered only if the gap persists due to a restrictive frenulum, usually evaluated around ages 10-12 or as part of orthodontic treatment.

At what age is a lip-tie frenectomy done for a gap?

The procedure is most commonly performed on children between ages 8 and 12, often timed just before or during orthodontic treatment. It is rarely an urgent procedure in older children and can even be done in adults if needed.

Will the gap close on its own after a frenectomy?

Not automatically. The frenectomy removes the physical barrier. To actually close the space, orthodontic treatment (braces or aligners) is usually required. The frenectomy prevents the gap from reopening after orthodontics.

Is a frenectomy for a gap covered by insurance?

Coverage varies widely. Some dental insurance plans may cover part of the cost (often under code D7960) if deemed medically necessary, while others consider it elective. It's best to check with your specific provider. Learn more about frenectomy cost factors.

What happens if a lip tie causing a gap isn't treated?

The gap will likely remain permanently. If orthodontic treatment closes the gap without a prior frenectomy, the risk of the gap reopening after braces are removed is very high. The frenulum's persistent pull can also contribute to gum recession over time.

Can a general dentist perform a frenectomy for a gap?

Yes, many general dentists, pediatric dentists, oral surgeons, and periodontists are trained to perform this common procedure. An orthodontist may diagnose the need for it but often refers to a colleague for the surgical component.

References

1. American Academy of Pediatric Dentistry. (Policy on Oral Habits). Guidance on management of oral habits and their dental effects.
2. American Association of Orthodontists. (Public Information). Resources on diastema and common causes of spacing between teeth.
3. NHS UK. (Clinical Overviews). Patient information on gaps in teeth and available treatments.
4. Mayo Clinic. (Patient Care & Health Information). Overview of oral surgery procedures, including frenectomy.
5. Cochrane Oral Health Group. Systematic reviews on interventions for oral soft tissue conditions.

Medical disclaimer

This article is for informational purposes only and is not medical advice. It does not establish a doctor-patient relationship. For diagnosis and treatment of any oral health condition, including lip tie, consult a qualified healthcare provider such as a pediatric dentist or orthodontist. Reviewed by the frenectomyguide.com editorial team · Last updated 2026-10-31.