Gap teeth treatment cost
How to fix a gap in teeth: cost & options in 2026
Updated April 30, 2026
8–10 min read
Sources: ADA · AAO
Bottom line: Closing a gap in teeth (diastema) costs $300–$9,000 depending on the method. Dental bonding is the quickest and cheapest at $100–$400 per tooth. Braces or Invisalign close gaps at $3,000–$9,000 but also correct alignment. Veneers close gaps cosmetically at $1,000–$2,500 per tooth. The right choice depends on gap size and whether other alignment issues exist.
Gap teeth treatment cost comparison
| Treatment | Gap size | Permanence | Cost range |
|---|
| Dental bonding | Small gaps (<2mm) | 5–10 years | $100–$400 per tooth |
| Composite veneers | Small to medium | 5–7 years | $250–$1,500 per tooth |
| Porcelain veneers | Small to medium | 10–20 years | $1,000–$2,500 per tooth |
| Braces | Any size | Permanent (with retainer) | $3,000–$7,000 |
| Invisalign | Small to medium | Permanent (with retainer) | $3,000–$9,000 |
| Frenectomy (if frenum is cause) | Pre-treatment only | Permanent | $500–$1,500 |
What causes a gap between front teeth?
The most common gap is a midline diastema — a space between the two upper front teeth. Causes include an oversized labial frenum (the tissue connecting your upper lip to your gum), teeth that are naturally too small for the jaw, missing teeth creating drift, and tongue thrust habits. Some gaps have a genetic component and run in families.
Does the cause of the gap affect treatment choice?
Yes. If the gap is caused by an oversized frenum, a frenectomy (surgical trimming) may be needed before or alongside orthodontic treatment — otherwise the gap may reopen after braces. Your dentist or orthodontist will identify the underlying cause before recommending treatment.
Bonding vs. braces for a gap: which is better?
Dental bonding is fastest and least expensive, but only works for small gaps and requires replacement every 5–10 years. Orthodontic treatment takes 12–24 months and costs more, but provides a permanent result, corrects any related bite issues, and doesn't require ongoing replacement costs. For gaps larger than 2mm or cases with accompanying misalignment, orthodontics is typically the better long-term value.
Frequently asked questions
Can I close a gap in my teeth with retainers? +
Retainers are designed to maintain tooth position, not move teeth. Active orthodontic treatment (braces or aligners) is needed to close a gap. After closure, retainers are critical to prevent the gap from reopening — gaps have a tendency to recur, especially when caused by a frenum.
Will my gap come back after treatment? +
Without retention, midline diastemas have a higher recurrence rate than other tooth movements. Wearing retainers as instructed (nightly, long-term) prevents recurrence. Some orthodontists place a permanent bonded retainer behind the front teeth specifically to hold the gap closed.
Is a gap in teeth a dental problem or purely cosmetic? +
Small gaps are primarily cosmetic. Large gaps can allow food trapping, increase gum irritation, and in some cases affect bite function and speech. Insurance is more likely to cover gap closure when it's part of broader orthodontic or restorative treatment rather than for purely cosmetic reasons.
Sources: American Dental Association (ADA) Health Policy Institute; American Association of Orthodontists (AAO) 2025 Consumer Survey; National Center for Health Statistics. All costs reflect 2026 US national averages and are estimates only. Individual prices vary by provider, location, and insurance plan.