In Summary
- A diastema is a gap between two teeth—often harmless but sometimes responsible for oral health issues
- Its causes can be genetic, anatomical, functional, or related to bad habits
- It may affect chewing, increase spitting, or lead to aesthetic or social discomfort
- Correction depends on the context: oral health, psychological impact, or cosmetic preference
- Orthodontics, veneers, or surgery are the main treatment options depending on the cause and expectations
- In some cases, it is perfectly acceptable to keep it if no risk is identified
Do you have gappy teeth and wonder whether to fix them? The answer depends on your situation and especially on your oral health risks.
What is a diastema?
A diastema is a larger-than-normal space between two adjacent teeth. The most well-known is the upper central incisor diastema, also called gappy teeth.
In many cases, a diastema is harmless and its treatment is purely aesthetic—but it may cause complications worth knowing.
What are the main causes of diastema?
In children, the diastema is physiological and helps permanent teeth erupt. It usually closes naturally over time.
However, in adults, persistent diastema may be caused by:
- Oversized labial frenulum pushing between the front teeth
- Jawbone anomalies Genetics—diastema can be hereditary
- Muscle imbalance between the lips and tongue
- Tooth size-to-arch ratio issues (e.g. microdontia)
- Gum disease (e.g. periodontitis) leading to bone loss and tooth movement
- Anatomical obstacles, like supernumerary teeth
- Thumb sucking or other prolonged childhood habits
Diastema – health issue or cosmetic concern?
The main drawback is aesthetic: some people feel self-conscious about their smile due to a visible gap.
But it may also lead to functional problems, like food getting stuck, chewing discomfort, or lip irritation (hyperplasia).
Correct or embrace the gap?
Correcting gappy teeth depends on whether it causes dental health problems or emotional distress.
If left untreated, it may result in cavities, gum disease, or malocclusion—requiring correction.
But if it’s only an aesthetic concern, correction is also a valid option to regain self-confidence.
CHD Tip
Always get a comprehensive dental check-up before deciding to close a gap—it might not be necessary.
How can you close a diastema?
To correct the gappy teeth, several solutions are possible, depending on the cause of the diastema.
Orthodontic treatments
Braces are the most natural and gradual way to close a gap.
Options include:
• Metal braces – the most accessible and cost-effective solution.
• Lingual braces – attached to the inside of the teeth for more discretion.
• Clear aligners (Invisalign) – transparent trays that are comfortable and nearly invisible.
CHD Tip
Your dentist can help choose between braces, aligners, or veneers depending on your smile and preferences.
Non-orthodontic cosmetic options
For faster results, especially in adults, these solutions may be considered:
• Dental crowns – less preferred as they require grinding down healthy teeth.
• Dental veneers – thin custom shells bonded to the front of teeth for a natural, aesthetic result.
Can surgery be an option?
Surgery is rarely necessary but may be recommended in case of frenulum hypertrophy. A labial frenectomy can remove the tissue to help teeth move closer.
Can you prevent a diastema?
Some causes like genetics or anatomical issues can’t be avoided.
But you can limit certain risks by avoiding harmful habits like thumb sucking.
When unsure, consult your dentist.
FAQ
Are gappy teeth hereditary?
Yes—heredity is one of several possible causes of a diastema.
Can a diastema close naturally?
In a child, before the formation of permanent teeth, it is common to observe a gap between the teeth. This gap allows the space necessary for the permanent teeth to grow properly. In most cases, the diastema naturally closes over time and will not require orthodontic treatment for the child.
But if the gap remains after full dentition, dental advice is recommended. If a new gap appears in adults, it may signal tooth loosening due to bone/gum loss. Consult your dentist promptly.
Why do some celebrities keep their gap teeth?
It’s a personal choice—if no oral health issue exists, there’s no obligation to fix it.
Can you widen a diastema intentionally?
There is no medical justification for voluntarily enlarging a gap. Ask your dentist before considering such actions.
Is diastema treatment covered by insurance?
In Switzerland, most cosmetic dental treatments are not reimbursed by basic health insurance.
However, exceptions exist for accidents or serious conditions (e.g., enamel disease or genetic dental defects).
Request a customized quote from your dentist.
