What?
A temporary shaping aid.
← All explanationsDental matrix
How does a filling get its side contour?
A dental filling matrix is a temporary shaping aid made from a thin band or shaped strip. It contains material while a missing tooth wall is rebuilt. The matrix is removed after the material sets, and the filling is checked.
For training & practice ↓
AI-generated
Choose a view
Provide a temporary wall
Where a side wall is missing, the filling material needs a boundary during placement.
Shape the contour
An adapted band helps shape the outside and the contact with the neighbouring tooth. Wedges or other aids can support adaptation.
Remove and check
The matrix does not remain as part of the filling. Margins, contacts and the bite are then assessed.
Read the full explanation
Provide a temporary wall
Where a side wall is missing, the filling material needs a boundary during placement.
Shape the contour
An adapted band helps shape the outside and the contact with the neighbouring tooth. Wedges or other aids can support adaptation.
Remove and check
The matrix does not remain as part of the filling. Margins, contacts and the bite are then assessed.
Notes on the teaching images
- Simplified teaching model; not to scale.
- This image still shows the temporarily inserted band.
At a glance
Purpose?
Help form a suitable filling contour.
Does it remain?
No.
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 as text.
Often confused
Matrix versus filling material
The matrix provides a temporary shape. Filling material replaces missing tooth structure and stays in the tooth.
Quick answers
Does the metal stay in the tooth?
The matrix band is removed. It is separate from the filling material.
What is the small wedge for?
It can help adapt the band and support shaping between the teeth.
Does the matrix replace the filling?
No. It contains the filling material during shaping and is removed afterwards.
At the practice
For a personal discussion
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
How will the margin and contact of my filling be assessed?
If food catches or an edge feels rough after a filling, have the contact assessed.
Have a filling and contact checkedAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Contour
- The external shape of a surface.
- Proximal contact
- Contact with a neighbouring tooth.
- Wedge
- An aid used for adaptation between teeth.
Make the distinction
The matrix provides a temporary shape. Filling material replaces missing tooth structure and stays in the tooth.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.