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A completely digital workflow for an anterior repositioning device.
Nguyen Thu Tra1, Nguyen Viet Anh2, Nguyen Minh Duc3
1Lecturer, Department of Prosthodontics, School of Dentistry, Hanoi Medical University, Hanoi, Vietnam; and Doctoral student, Department of Functional Anatomy and Neuroscience, Graduate School of Medicine, Nagoya University, Aichi, Japan.
The Journal of Prosthetic Dentistry
|March 13, 2025
Summary
This study introduces a digital scanning technique for anterior repositioning devices, improving temporomandibular joint disorder treatment. This method accurately captures jaw movement, reducing chair time for patients and dentists.
Area of Science:
- Dentistry
- Biomechanical Engineering
- Medical Device Technology
Background:
- Temporomandibular joint (TMJ) pain, often linked to internal derangement, is commonly treated with anterior repositioning devices.
- These devices feature a ramp to guide mandibular repositioning, but traditional methods lack precision in capturing the closure path.
- Manual adjustment of the ramp during appliance insertion leads to prolonged clinical appointments.
Purpose of the Study:
- To present a novel digital scanning technique for fabricating anterior repositioning devices.
- To improve the accuracy of device fitting by incorporating the mandibular closing path.
- To reduce the clinical chair time required for appliance insertion and adjustment.
Main Methods:
- Utilized advanced digital scanning technology to capture detailed intraoral anatomy.
- Specifically recorded the patient's habitual mandibular closing path during the scanning process.
- Fabricated the anterior repositioning device based on the comprehensive digital model.
Main Results:
- The digital technique accurately recorded the mandibular closing path, a crucial parameter previously difficult to capture.
- Device insertion and fitting were significantly streamlined due to the precise digital fabrication.
- Reduced the need for manual ramp adjustments, leading to a more efficient clinical workflow.
Conclusions:
- Digital scanning, including the mandibular closing path, offers a superior method for fabricating anterior repositioning devices.
- This technique enhances treatment efficiency and patient comfort for temporomandibular joint disorders.
- Minimizing chair time through digital workflows represents a significant advancement in occlusal device treatment.
