Occlusal splint design, part by part

In the Orient step, the occlusal plane is estimated automatically. You can redefine it with three points: the two first molars and the point between the central incisors. Every later measurement is taken in this frame.

You set the insertion axis by looking down the direction you want, or by adjusting it in four directions. Retention areas are shown in blue on the scan. The server then fills the undercuts with wax in a few seconds.

• Retention is set in tenths of a millimetre.
• The draft angle tilts the filled walls so the splint seats and comes off.
• A wax thickness view shows the areas that would catch; you touch them up with the brushes.

You place landmark points on the teeth, group by group. The software traces the splint's outline on the wax and spans a diastema instead of dropping into it. You can move a point, push a section of the border or redraw part of it before going on.

The shell is offset from the blockout wax, the surface the splint sits on, not from the raw scan. In Generate, a view shows in red any area thinner than the value you chose. The case report includes the thickness map.

The engine builds the table from the bite, the five zones painted on the opposing arch and the recorded lateralities and protrusion. Default values:

• In centric occlusion: balanced contacts on the canines, a light contact on the incisors, 20 µm of clearance on one supporting cusp per posterior tooth.
• In laterality: canine guidance, with only the working-side canine in contact.
• In protrusion: anterior guidance on the incisors.
• No posterior contact in movement.

After generation, contacts are coloured on the splint (clearance, contact, penetration) and their values can be shown. You can run the articulator's movements to see the contact paths, then touch up the splint with the brushes.

The splint is cut against the blockout wax and fitted to the arch with the gap you choose, from 0 to 1 mm. You can add a raised or engraved label. The result is a closed STL at full resolution, with a case report.