Last reviewed: April 2026 · Based on current clinical protocols at DenCos, Hoofddorp
An overbite (deep bite) is a vertical overlap where the upper front teeth cover more than 2–3 mm of the lower front teeth. Invisalign can correct most dental overbites by combining anterior tooth intrusion with posterior molar extrusion using a series of custom clear aligners. A case-series study of 37 patients found that Invisalign achieved an average overbite reduction of 4.1 mm through these combined movements. At DenCos in Hoofddorp, overbite corrections are performed by Dr. Jing Guo — a registered specialist orthodontist (BIG 19918762902, PhD 2011) with Diamond Apex Status (top 1% of Invisalign providers in Europe).
This article explains what causes an overbite, how Invisalign corrects it, how long treatment takes, and when alternative approaches may be needed.
What is an overbite and when does it need treatment?
An overbite occurs when the upper front teeth overlap the lower front teeth vertically by more than the normal 2–3 mm. A small degree of vertical overlap is healthy and expected — problems arise when the overlap becomes excessive, typically beyond 4 mm. The Dutch Orthodontic Association (NVvO) classifies a deep bite as a malocclusion requiring evaluation when it causes functional or dental problems.
Common signs that an overbite may need correction:
- Upper front teeth cover more than half of the lower front teeth
- Lower front teeth bite into the gum tissue behind the upper teeth
- Excessive wear on the biting edges of the front teeth
- Jaw discomfort or tension when chewing
- Difficulty biting certain foods
Overbites can be dental (caused by tooth position) or skeletal (caused by jaw size discrepancy). At DenCos, Dr. Guo uses iTero 3D scanning and cephalometric analysis to determine the type and severity of your overbite before recommending a treatment approach.
A deep bite that causes wear, gum trauma, or jaw discomfort should be evaluated by a specialist orthodontist — untreated, these problems tend to worsen over time.
How does Invisalign correct an overbite?
Invisalign corrects overbites by applying controlled forces that simultaneously intrude the front teeth upward and extrude the back teeth downward. This two-directional movement reduces the vertical overlap between upper and lower front teeth. Each aligner in the series makes incremental adjustments of approximately 0.25 mm per stage.
The biomechanics involve:
- Anterior intrusion — the upper and lower front teeth are pushed into the jawbone, reducing their vertical prominence
- Posterior extrusion — the molars and premolars are brought slightly downward, opening the bite
- SmartForce attachments — small tooth-coloured composite shapes bonded to specific teeth to enhance the aligner's grip and control complex movements
- Elastics — rubber bands connecting upper and lower aligners to guide jaw positioning in cases involving Class II correction
A deep bite case-series study documented that Invisalign achieved a statistically significant 4.1 mm overbite reduction (p < 0.05) with upper incisor intrusion of 0.6 mm and lower incisor intrusion of 1.8 mm, combined with posterior extrusion across premolars and molars.
At DenCos, Dr. Guo plans every overbite correction digitally using ClinCheck — AI-driven software that simulates each tooth movement from start to finish. You can view an animation of your projected bite correction before committing to treatment.
Invisalign corrects deep bites through a combination of front tooth intrusion and back tooth extrusion — a dual mechanism that is planned and visualised digitally before your first aligner is made.
How long does Invisalign take to fix an overbite?
Treatment duration depends on the severity of the overbite and how well the teeth respond to aligner forces. Based on clinical evidence and DenCos's treatment protocols, typical timelines are:
| Overbite severity | Typical treatment time | Aligner wear required |
|---|---|---|
| Mild (4–5 mm overlap) | 6–12 months | 20–22 hours per day |
| Moderate (5–7 mm overlap) | 12–18 months | 20–22 hours per day |
| Severe / complex (>7 mm or combined with other issues) | 18–24 months | 20–22 hours per day |
A study in the American Journal of Orthodontics found that clear aligner treatment achieved an average of 33% of the prescribed overbite correction, meaning overcorrection in the digital plan is typically needed. This is why provider experience matters — at DenCos, Dr. Guo's 3,000+ case track record means she knows exactly how much overcorrection to programme for predictable results.
Consistent aligner wear of 20–22 hours per day is critical. At DenCos, progress is monitored every 6–8 weeks, and refinement aligners are added if needed to achieve the planned bite correction.
Dr. Guo's Diamond Apex experience means optimised treatment plans that account for the biomechanical realities of deep bite correction — reducing the need for extra refinement stages.
When is Invisalign not enough to fix an overbite?
Invisalign effectively corrects dental overbites — where the problem is caused by tooth positioning. However, severe skeletal overbites caused by significant jaw size discrepancy may require alternative or combined approaches.
Your orthodontist may recommend alternatives if:
- The overbite is primarily skeletal — the lower jaw is significantly underdeveloped relative to the upper jaw
- Teeth require complex root movements that exceed clear aligner capabilities
- The deep bite is combined with severe crowding requiring extractions and precise space closure
- Orthognathic surgery is needed to reposition the jaws
For growing adolescents with a skeletal Class II pattern, Align Technology offers a mandibular advancement feature integrated into Invisalign aligners. A retrospective study of 32 growing patients found statistically significant improvements in jaw relationship after approximately 9 months of mandibular advancement therapy.
At DenCos, Dr. Guo assesses whether your overbite is dental or skeletal during the initial consultation using iTero 3D scanning and cephalometric imaging. If your case requires interdisciplinary care, periodontist Dr. Gang Wu (BIG 29918905102) works alongside Dr. Guo under one roof — for example, when gum or bone health needs attention before or during orthodontic treatment.
Not every overbite is an Invisalign case. At DenCos, the initial 3D consultation determines whether clear aligners, fixed braces, or a combined approach will give you the best result.
Invisalign vs braces for overbite correction
Both Invisalign and fixed braces can correct overbites effectively. The choice depends on the type and severity of the overbite, patient preference, and clinical factors.
| Feature | Invisalign | Fixed braces |
|---|---|---|
| Overbite correction | Effective for dental deep bites | Effective for dental and skeletal deep bites |
| Visibility | Nearly invisible clear aligners | Visible metal or ceramic brackets |
| Removability | Removable for eating and brushing | Fixed — cannot be removed |
| Comfort | Smooth plastic, less soft tissue irritation | Brackets and wires may cause sores initially |
| Oral hygiene | Easier — remove aligners to brush normally | More difficult — requires special cleaning around brackets |
| Complex deep bites | May need attachments and elastics | Full bracket control for severe cases |
| Treatment duration | Comparable for mild–moderate cases | May be faster for very severe cases |
At DenCos, approximately 85% of orthodontic cases are treated with Invisalign, including many deep bite corrections. Dr. Guo recommends fixed braces when the biomechanics require it — not because of a preference for one system, but because certain severe overbites respond more predictably to bracket-and-wire mechanics.
The SmartTrack material used in current Invisalign aligners delivers more consistent force application than earlier aligner materials. According to Align Technology, SmartTrack improves tooth movement predictability by up to 75%, which is particularly relevant for the controlled intrusion movements needed in overbite correction.
Both options work. At DenCos, the recommendation is based on your specific bite analysis — not on which system is easier to sell.
What are the benefits of correcting an overbite?
Correcting an overbite improves both oral health and daily function. The benefits extend beyond aesthetics:
- Reduced tooth wear — excessive overbite causes accelerated wear on the biting edges of the front teeth. Correction distributes biting forces more evenly across all teeth.
- Lower risk of tooth trauma — protruding upper front teeth are more susceptible to chipping or fracture from impacts. Bringing them into alignment reduces this risk.
- Improved gum health — when lower front teeth bite into the palatal gum tissue, chronic inflammation can develop. At DenCos, Dr. Wu (BIG 29918905102) can assess and treat gum issues in coordination with the orthodontic plan.
- Better jaw function — a balanced bite reduces strain on the temporomandibular joint (TMJ), which can alleviate jaw pain and headaches.
- Facial balance — correcting a deep bite can subtly improve lower facial proportions by allowing the lips and chin to sit in a more balanced position.
A systematic review in Dental Press Journal of Orthodontics confirmed that successful overbite correction with clear aligners leads to measurable improvements in both dental alignment and patient-reported satisfaction.
At DenCos, every overbite treatment plan considers the long-term health of both your teeth and your gums — this is the advantage of having orthodontics and periodontology under one roof in Hoofddorp.
Overbite correction is not just cosmetic — it protects teeth from wear, reduces jaw strain, and improves long-term oral health.
Next step
Want to find out if Invisalign can correct your overbite? Register as a new patient at DenCos in Hoofddorp or call 023-792 0463 to schedule a consultation with specialist orthodontist Dr. Jing Guo. The initial 3D scan assessment will show you exactly what is possible for your bite. Patients from Haarlem, Amsterdam, Amstelveen, Haarlemmermeer, and the wider region are welcome — no referral is required.