Black Triangle Closure
Close the shadows between your teeth.
Black triangles make a smile look older. We can often close them with bonding, no drilling required.
What is black triangle closure?
Black triangles are small dark spaces between teeth near the gums, caused by gum recession, bone loss or triangular tooth shapes. Treatment uses composite bonding (such as the Bioclear method), aligners or veneers to fill the space. It improves appearance and reduces food trapping. Its main limitation: if gum disease is active, it must be treated first.
Who is a candidate?
Often a good fit
- Dark spaces between front teeth
- Food trapping between teeth
- Triangle-shaped teeth
- Gaps after orthodontics
Needs extra care or planning
- Active gum disease
- Ongoing bone loss
- Poor flossing habits
- Heavy grinding
When an exam is needed: A gum exam and X-rays check that gums and bone are stable.
Problems it can address
Limitations: Treatment fills the space; it doesn't regrow gum tissue.
Benefits and disadvantages
Benefits
- Often no drilling
- Same-day results
- Reduces food trapping
- Natural appearance
Disadvantages
- Bonding can stain
- Needs careful flossing
- May need touch-ups
- Results depend on gum health
The treatment process
- 1
Evaluation
We check gums, bone and tooth shape.
- 2
Cleaning
Teeth are thoroughly cleaned (often with blasting).
- 3
Matrix placement
Clear forms shape the new contours.
- 4
Bonding
Warm composite fills the triangle.
- 5
Polish
Final shaping and floss check.
Timeline: Usually one visit of 1–2 hours.
Recovery and aftercare
What to expect
Discomfort: Minimal gum tenderness.
Downtime: None.
Aftercare
- Floss daily
- Avoid staining foods for 48 hours
- Regular cleanings
- Wear a nightguard if advised
Call us right away if you notice
- Gum bleeding that persists
- A rough edge
- Chipping
Longevity and outcomes
Often 5–10 years with good care.
What affects your result
- Gum health
- Hygiene
- Grinding
Possible complications
- Staining
- Chipping
- Recurrence with recession
Cost and payment options
Priced per space treated. You'll get a written quote at your consultation.
What affects the price
- Number of spaces
- Bonding vs veneers
- Gum treatment needed
- Aligners first
Insurance & financing
We accept most PPO plans and offer financing through CareCredit, Sunbit and others.
Comparison with alternatives
Invisalign
Can reduce triangles by moving teeth.
Veneers
Reshape teeth to close the gap.
Gum grafting
Specialist procedure for some cases.
Clinical case examples
Real, patient-authorized cases for this treatment are being added soon, with diagnosis, reasoning and results.
View our Before & After Gallery →Why choose Neo Dental?
Patient reviews
Read what our patients say, in their own words, on independent review sites.
Frequently asked questions
What causes black triangles?+
Gum recession, bone loss or tooth shape.
Is it painful?+
No; usually no numbing is needed.
Will it last?+
Often 5–10 years.
Can I still floss?+
Yes, and you should.
Can braces cause them?+
Sometimes, as teeth straighten.
Do I need gum treatment first?+
Only if gum disease is active.
Your care team & booking
Dr. Sol Shahri
General and cosmetic dentist leading every treatment plan at Neo Dental. This page was medically reviewed by Dr. Sol Shahri.
Meet the team →References
Related treatments
Not sure if you need black triangle closure?
Book an exam and we'll explain every option, including the most conservative one.
Book your visit