Closing Gap Teeth with Invisalign: The Diastema Guide

The visible space between two teeth, often called "gap teeth" but medically known as diastema, is most often located between the upper incisors. While some consider it a charming feature, others prefer to correct it for a more uniform smile. Fortunately, modern solutions like Invisalign can close this gap very effectively.

What causes a gap between teeth?

A diastema can come from several factors. Identifying the cause is essential for choosing the most suitable treatment and ensuring a stable result.

• An overly prominent labial frenum: The small tissue connecting the upper lip to the gum may be too thick or inserted too low, acting as a physical barrier between the incisors.
• Tooth-jaw size discrepancy: Teeth too small relative to a wide dental arch can naturally create gaps.
• Heredity: The presence of a diastema is often a family trait.
• Atypical swallowing (tongue thrust): A bad habit where the tongue pushes against the front teeth during swallowing can gradually push them apart.
• Periodontal disease: In adults, loss of bone support due to gum disease can cause tooth mobility and the appearance of gaps.

Modern solutions for closing a diastema

To correct an interdental gap, several options exist, ranging from fundamental orthodontic correction to purely aesthetic solutions.

Invisalign: treating the cause of the problem

To close a diastema, Invisalign treatment is often the preferred solution, especially for adult orthodontics. The clear aligners exert controlled forces to gradually bring teeth together and eliminate the gap. This is a lasting correction that addresses the root of the problem (malposition) rather than simply camouflaging it. The treatment duration for this type of correction is often quite quick.

Dental veneers: the cosmetic correction

Another option is dental veneers. These are thin ceramic shells bonded to the visible surface of teeth. By making veneers slightly wider than the natural teeth, the dentist can visually "fill" the gap. It's a very quick solution, but it doesn't move teeth. It's an aesthetic camouflage, ideal if tooth shape or shade also needs improvement.

Other orthodontic appliances

Obviously, traditional orthodontic appliances like braces are also very effective for closing a diastema and remain a frequently used option, especially for teenagers.

The special case of the labial frenum

If the cause of the diastema is a hypertrophied labial frenum, orthodontic treatment alone may not be sufficient for a stable result; the gap could reform. In this situation, a small surgical procedure called a frenectomy is often indicated. It involves removing or repositioning the frenum to allow teeth to remain permanently joined. The procedure is quick and performed under local anesthesia.

How to ensure the gap doesn't reopen?

Whatever orthodontic technique is used to close the diastema, the result is not permanent without a stabilization phase. Retention is absolutely essential. It can take the form of a thin wire bonded behind the teeth or nightly wear of a maintenance aligner. Without this step, teeth will have a natural tendency to return to their initial position.

Conclusion: a personal choice, effective solutions

Keeping or closing an interdental gap is a personal decision. If you choose to act, know that Invisalign represents a first-choice solution, both discreet and effective, for achieving perfect alignment. A consultation with a practitioner will diagnose the cause of your diastema and guide you to the most suitable treatment plan.