← All explanationsEdge-to-edge bite

What does it mean when the incisor edges meet?

In an anterior edge-to-edge bite, the cutting edges of upper and lower incisors meet directly instead of overlapping slightly. In posterior terminology, a cusp-to-cusp relationship may also be described this way. The overall bite and any symptoms determine its relevance.

For training & practice ↓

Fictional teaching model with edge-to-edge contact of upper and lower incisors. Focus: Incisal edges in contact. — Idealized example of incisor contact. Not a patient case or a prediction of tooth damage.

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Edge against edge

The incisor edges meet directly. This describes contact but does not establish the underlying dental or jaw relationship.

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Assess loading

Assessment considers wear, contact distribution, function and growth. An edge-to-edge bite does not inevitably cause damage or jaw symptoms.

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Interpret the findings

Observation or treatment depends on the individual situation. Contact appearance alone does not determine the appliance or timing.

Watch the short explanation ↓

At a glance

Contact?

Cutting edge against cutting edge.

Always harmful?

No; the overall findings matter.

Assessment?

Consider contacts, wear and development together.

Knowledge in motion

Explained in 36 seconds.

Three steps. No audio.
Each scene can also be selected manually.

Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available below.

Read the film text in English

Edge against edge
The incisor edges meet directly. This describes contact but does not establish the underlying dental or jaw relationship.
Assess loading
Assessment considers wear, contact distribution, function and growth. An edge-to-edge bite does not inevitably cause damage or jaw symptoms.
Interpret the findings
Observation or treatment depends on the individual situation. Contact appearance alone does not determine the appliance or timing.

Often confused

Edge-to-edge, crossbite and open bite

Edge-to-edge means direct cutting-edge contact. An anterior crossbite reverses the usual relationship; an open bite lacks contact in the affected area.

Quick answers

Is it the same as an anterior crossbite?

No. In an anterior crossbite, lower incisors lie in front of upper incisors; in an edge-to-edge bite their edges meet.

Does a child need immediate treatment?

Not automatically. Tooth development, growth, severity and other findings influence assessment.

Can it contribute to wear?

Tooth contacts may play a role, but wear has several possible contributing factors and needs its own assessment.

At the practice

For a personal discussion

Editorially suggested question to discuss with Dr Niusha Barahmand Pour:

What does this edge contact mean for my teeth and the rest of my bite?

An examination can clarify edge-to-edge contacts or visible wear.

Have tooth contacts assessedAppointment selection at Doctolib

Meet Dr. Niusha Barahmand Pour ↗

Learning layer for training & practiceUnderstand terminology and deepen knowledge

Incisal edge: The cutting edge of an incisor.
Cusp: A raised part of a posterior tooth chewing surface.
Occlusion: The contact relationship of the dental arches.

Make the distinction

Edge-to-edge means direct cutting-edge contact. An anterior crossbite reverses the usual relationship; an open bite lacks contact in the affected area.

Knowledge questionWhat characterizes an anterior edge-to-edge bite?

For learning, not for assessing personal symptoms. Your answer is not stored or sent.

The incisor edges meet directly.
The front teeth do not touch at all.
Every upper tooth projects far beyond the lower teeth.

View answer

The incisor edges meet directly.

The term describes contact rather than a specific cause.

Sources and context

Editorial research: 2026-11-02. General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.