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Digital dental casts offer superior accuracy and precision compared to traditional analog methods, particularly within the Military Health System. This advancement enhances dental diagnostics and prostheses fabrication, improving patient care and treatment efficiency.

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Area of Science:

  • Dental Technology
  • Digital Dentistry
  • Prosthodontics

Background:

  • Traditional dental impressions and casts are crucial for diagnosis and prostheses fabrication but can be prone to errors and patient discomfort.
  • Digital dentistry presents advanced alternatives, yet their accuracy in military dental applications requires further investigation.
  • This study specifically evaluates digital cast accuracy using materials available within the Military Health System.

Purpose of the Study:

  • To compare the accuracy of digital dental casts against conventional analog methods.
  • To assess the applicability and performance of digital casting materials within the Military Health System.
  • To identify specific dental applications where digital workflows offer significant advantages.

Main Methods:

  • Fabricated digital and analog casts (n=10 each) from a single reference cast (n=1).
  • Scanned all casts to generate stereolithography files for full arch, single crown, fixed dental prosthesis, and inlay preparations.
  • Utilized 3D comparison software and root mean square (RMS) values to quantify deviations and evaluate accuracy and precision.

Main Results:

  • Digital full arch casts demonstrated significantly higher accuracy (RMS 51.9 ±5.39 µm) and precision (RMS 4.2 ±1.57 µm) compared to analog casts (Trueness RMS 106 ±19.18 µm, Precision RMS 12 ±2.58 µm).
  • Overall, digital casts exhibited superior accuracy across most dental preparations evaluated.
  • Fixed dental prostheses showed no statistically significant difference in accuracy between digital and analog methods.

Conclusions:

  • Digital workflows show significant potential for improving the speed and accuracy of dental care within the Military Health System.
  • The findings support the integration of digital casting technologies for enhanced dental diagnostics and prostheses fabrication.
  • Further research is recommended to refine digital techniques for specific clinical scenarios in military dentistry.