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The precision of computer-generated surgical splints.

Jaime Gateno1, James Xia, John F Teichgraeber

  • 1Department of Oral and Maxillofacial Surgery, University of Texas Cleft and Craniofacial Clinic, The University of Texas Health Science Center, Houston, TX 77030, USA.

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
|July 12, 2003
PubMed
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Stereolithographic surgical splints created using CAD/CAM technology demonstrate high precision, matching the fit of conventional acrylic splints. This advancement may replace traditional methods in computer-assisted surgical planning.

Area of Science:

  • Dental technology
  • Biomedical engineering
  • Computer-aided design and manufacturing (CAD/CAM)

Background:

  • Conventional acrylic surgical splints are widely used in dental procedures.
  • Evaluating the precision of novel fabrication techniques is crucial for clinical application.

Purpose of the Study:

  • To assess the precision of stereolithographic surgical splints produced via a CAD/CAM technique.
  • To compare the accuracy of stereolithographic splints against conventional acrylic splints.

Main Methods:

  • Seven volunteers received both stereolithographic and conventional acrylic surgical splints.
  • A novel method quantified the airspace between teeth and splints using impression materials and cross-sectional analysis.
  • Airspace measurements were compared between the two splint types using statistical tests.

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Main Results:

  • The average difference in airspace between conventional and stereolithographic splints was minimal (0.24 +/- 0.23 mm²).
  • A perfect correlation (r=1.00) and a significant regression coefficient (beta=1.03, P <.01) were found between the splint types.
  • Stereolithographic splints exhibited a high degree of accuracy and comparable fit to conventional splints.

Conclusions:

  • Stereolithographic splints generated by CAD/CAM technology offer high precision and accuracy.
  • The fit of stereolithographic splints is equivalent to conventional surgical splints.
  • CAD/CAM-generated splints are poised to replace traditional methods in computer-assisted surgical planning.