--- /dev/null
+.. _over_constrained_faces_page:
+
+**********************
+Over-constrained faces
+**********************
+
+This mesh quality control highlights faces having all their points on the border.
+
+.. note::
+ The highlighted faces are actually over-constrained only if, at the computation time, the boundary conditions on the borders where the nodes are located are all Dirichlet boundary conditions.
+
+.. image:: ../images/over_constrained_faces.png
+ :align: center
+
+.. centered::
+ Over-constrained face is displayed in red
+
+**See Also** a sample TUI Script of a :ref:`tui_over_constrained_faces` filter.
+
+
