orthodontic models with ai

EasyModel uses advanced artificial intelligence techniques to create accurate, high-quality orthodontic models. Our process includes a series of treatments depending on the type of model requested and the parameters supplied.

Here are the main steps to obtain high-quality 3D dental models:

1. Removal of artifacts and soft tissue.

2. The cutting of the impression according to the chosen objective.

3. Producing the base

Still have questions about our AI orthodontic models? see our FAQ at the bottom of the page.
To find out more about the benefits of EasyModel, read the article “EASYMODEL: AI accelerates digital dental modeling” on the website of the leading magazine for dental health professionals, Le Fil Dentaire.

Orthodontic models in AI: joint soft-tissue removal

EasyModel automatically removes any artefacts that are distracting or unnecessary to the desired model, such as soft parts like the cheeks and tongue, to create an accurate dental model.

supprésion-artefacts-dentaire

Impression with artefacts to be removed.

nettoyage-scan-dentaire

Maxilla impression with cheek/lip in red, to be removed.

Types of cut-outs for customized orthodontic models

Model

This type of cut preserves as much of the gingival data as possible and depends on the arch. For the maxilla, the palate is preserved to adapt to various types of prosthesis (plates, pendulum, palatal arch, quadhelix, etc.). For the mandible, the cut is made as close as possible to the junction with the gums, to enable the dental technician to judge the height available in the patient’s mouth to accommodate certain appliances.

suppresion-plancher-lingual

Splint models

Optimized for thermoforming, this cut only preserves the teeth and a few millimeters of gum margin.

Fixed retainers

Similar to splint cutting, this method minimizes gum tissue and hard palate. The cut is made in the middle of the X5 teeth on the anteroposterior axis.

Support generation for 3D orthodontic models

You can define the type of base filling with 4 possible options: 

  • No filling (hollowed out)
  • Plate inside palate (hollowed out with plate)
  • Gingiva-only filling (solid)
  • Full filling (with  plate)
Hollow
Hollow with plate
Full
Full with plate

Marking orthodontic models with AI

If you wish to mark your model, enter the text and it will be engraved on the base or on the largest surface detected on the model.

Engraving on the base
Engraving on the side

Other treatments available

We also offer other options such as :

  • The filling of the model with a reinforced honeycomb structure, specifying the diameter and thickness of the cells.
  • 3-axis rotation to optimize layout on the printing plate 
  • Study model.
Honeycomb filling
Layout according to the 3 axes
Study model

FAQ 3D ortho models

1°) Model making - Cleaning/Cutting

The main steps in making an orthodontic model are generally

    • The cleaning of the prints
    • The cut-outs
    • The base creation
    • Additional tasks

This is a common treatment for all models. The aim is to remove artefacts that correspond to capture aberrations or external elements such as the manipulator’s finger. Next, the soft tissues (buccal mucosa, tongue, floor of mouth, uvula, tonsils and soft palate) that are of no interest for orthodontic prostheses are removed. EasyModel’s AI has learnt to recognise these elements and removes them in a first processing stage.

Cutting depends on the use of the digital model:

    • The simplest approach is limited to cutting out the upper or lower part of the maxilla or mandible from the impression after cleaning. This type of model is used for the manufacture of prostheses such as plates, pendulum, quadhelix, etc.
    • The “splint” cut corresponds to the manufacture of splints only, and therefore conforms to the constraints of thermoforming for this type of prosthesis.
    • The “fixed retainer” type of cutting corresponds to the manufacture of fixed restraints only and is therefore adapted to the needs of this manufacture.

For the maxilla, the cut leaves the entire palate and sufficient gingival height to be used for all types of appliance. For the mandible, the cut must be made at palate level, as close as possible to the gum line, to enable the prosthetist to judge the height available in the mouth to adapt certain appliances.

Here, for both maxilla and mandible, we preserve only the teeth and a margin of a few millimeters of gums (and potentially hard palate if present) around the teeth. In addition to the elements commonly removed, we also remove (if present) superfluous parts of the hard palate and gums.
The normal cut passes as close as possible to the teeth. On request, the “long splint” cut-out leaves an additional 3 mm of gingival height.

Here, in addition to the common removals, the hard palate and posterior teeth are also removed. Only the anterior part up to the middle of the second premolar is kept.

The next models available will be trimmed models for molar bands and specific models for mobile device support.

2°) Tasks performed on the models after cutting

Depending on the configuration of the model and the parameters specified by the user, the following tasks can be performed after cutting:

    • Straightening of the occlusal plane.
    • Base creation at different heights.
    • Engraving of the model.
    • Study model.
    • Alignment of the models on the printing trays.

Depending on the user’s choice, EasyModel can leave the models hollow or full them with a honeycomb structure or a smooth surface. The palate can be left empty or filled with a smooth surface.

EasyModel starts by trying to find the label to be engraved from the file name. Users can enter the text they want engraved on their model. EasyModel then determines the best surface i.e. on the plate if there is one on the model or otherwise on the largest flat surface on which it can engrave the specified text.
You can specify the depth of the engraving and the size and height of the characters required, which will be respected by EasyModel as far as possible.

EasyModel is not a 3D printing software. However, to limit redundant tasks to the user, he can arrange the models according to the axis he indicates to optimize the layout on the plate during printing.

3°) Dental models

For dental, you can generate simple models (see above). This avoids the need to clean up artefacts, remove soft tissue, straighten the occlusal plane, or engrave.

We are working on other tasks more specific to dental models.