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Related Experiment Video

Updated: Nov 23, 2025

Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
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Rehabilitating simulated worn dentition by using a complete digital workflow and five anatomic guidelines.

Ramtin Sadid-Zadeh1, Abdullah Al Qaraghuli2

  • 1Associate Professor, Assistant Dean of Digital Technologies, Department of Restorative Dentistry, University at Buffalo School of Dental Medicine, Buffalo, NY.

The Journal of Prosthetic Dentistry
|January 2, 2021
PubMed
Summary

This study demonstrates a digital workflow for restoring worn teeth using a simulated patient. The process involved creating interim restorations based on facial landmarks and then designing final restorations from these guides.

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Area of Science:

  • Dental Restorations
  • Digital Dentistry
  • Prosthodontics

Background:

  • Worn dentition presents a complex restorative challenge.
  • Restoring occlusal vertical dimension (OVD) is critical for function and aesthetics.
  • Traditional methods for OVD restoration can be time-consuming and technique-sensitive.

Purpose of the Study:

  • To describe a complete digital workflow for the rehabilitation of worn dentition.
  • To evaluate the use of a nonhinged simulated patient for digital restoration design.
  • To establish a protocol for fabricating interim and definitive restorations using digital technology.

Main Methods:

  • A dentiform representing a patient with reduced OVD was utilized.
  • Interim restorations were digitally designed using facial landmarks (midline, interpupillary line, ala-tragus line) and specific tooth positions.
  • Definitive restorations were designed based on the contours of the interim restorations.

Main Results:

  • A complete digital workflow was successfully applied to a simulated patient with worn dentition.
  • Interim restorations served as a reliable guide for the design of definitive restorations.
  • The digital approach facilitated the precise replication of desired occlusal parameters.

Conclusions:

  • A digital workflow offers a predictable method for rehabilitating worn dentition.
  • Utilizing facial and dental landmarks in digital design ensures accurate OVD restoration.
  • This workflow provides a foundation for fabricating esthetic and functional definitive restorations.