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Updated: Jan 7, 2026
06:51
Measuring the Complete-arch Distortion of an Optical Dental Impression
Published on: May 30, 2019
7.9K
Intraoral scanners and traditional impression analysis for reliability between techniques in full-arch
Claudia Peter1, Priya Nagar2, Vikas Vaibhav3
1Department of Prosthodontics, Rajas Dental College and Hospital, Kavalkinaru, Tirunelveli, Tamilnadu, India.
Bioinformation
|December 30, 2025
Summary
Digital impressions for full-arch implant prostheses show smaller deviations than conventional methods. Stereophotogrammetry offers superior accuracy, meeting clinical needs for complex implant procedures.
Area of Science:
- Dentistry
- Prosthodontics
- Digital Imaging
Background:
- Accurate impressions are crucial for full-arch implant-supported prostheses.
- Comparing digital and conventional impression techniques is essential for clinical application.
Purpose of the Study:
- To evaluate the accuracy of digital versus conventional impression methods for full-arch implant prostheses.
- To compare stereophotogrammetry with conventional techniques in implant prosthodontics.
Main Methods:
- Digital impressions using stereophotogrammetry.
- Conventional impression techniques.
- Analysis of deviations across anterior and posterior segments.
Main Results:
- Digital impressions exhibited significantly smaller deviations compared to conventional methods.
- Stereophotogrammetry demonstrated superior accuracy throughout the impression procedure.
- Higher deviations were observed in posterior segments for digital impressions.
Conclusions:
- Digital impression techniques, particularly stereophotogrammetry, meet clinical requirements for full-arch implant prostheses.
- Digital impressions show potential for complex implant procedures due to their accuracy.
- Further investigation into managing posterior segment deviations in digital impressions is warranted.
