The patient-specific anatomical articulator

Area of Science:

• Dental Technology
• Biomedical Engineering
• Prosthodontics

Background:

• Conventional dental articulators have limitations in accurately reproducing complex human mandibular movements.
• Existing mounting procedures are technique-sensitive, leading to potential errors in articulator settings and reduced treatment accuracy.
• There is a need for advanced devices that offer patient-specific simulation for improved prosthodontic outcomes.

Purpose of the Study:

• To describe an innovative, patient-specific anatomical articulator designed for accurate simulation of human mandibular movements.
• To present a method that eliminates technique-sensitive mounting procedures, thereby reducing potential errors.
• To highlight the advantages of a custom anatomical articulator over conventional devices and pantographic tracings.

Main Methods:

• Utilizing three-dimensional (3D) printing technology with patient cone beam computed tomography (CBCT) data.
• Creating 3D replicas of condylar fossae and condyles at the correct intercondylar distance.
• Printing the maxilla in its correct spatial relationship to condylar complexes and the Frankfort horizontal plane (FHP), then premounting onto a modified articulator frame.

Main Results:

• The developed device functions as a true patient-specific anatomical articulator, accurately simulating individual anatomy.
• Elimination of technique-sensitive mounting procedures significantly diminishes potential errors in mounting and articulator settings.
• The custom anatomical articulator provides greater precision than pantographic tracing, mimicking patient-specific anatomical movements.

Conclusions:

• The novel custom anatomical articulator offers a more precise and reliable method for simulating mandibular movements compared to existing technologies.
• This patient-specific device streamlines complex prosthodontic treatment by saving time, money, and effort, while minimizing mounting errors.
• The integration of 3D printing and CBCT data enables the creation of a fully adjustable, anatomically accurate articulator.