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Updated: Jun 30, 2025
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Accuracy of dental implants positioning in computer-assisted surgeries: In vitro study
Erick Andres Alpaca Zevallos1, Luciano Henrique Ferreira Lima1, Karine Laura Cortellazzi Mendes2
1Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
Objectives:
The aim of this study is to presents an experimental method for surgical guide confection using an intraoral scanner to obtain a 3D model of the patient's complete denture and compare its accuracy with the conventional methodology using computed tomography.
Study Design:
This prospective in-vitro study used 30 polyurethane pre-manufactured mandibles which were divided into two groups, conventional technique (group I) and a new method using intraoral scanner (group II), establishing the virtually planned position of the dental implants as a control group, considered as the gold standard for postoperative comparison.
Results:
The difference between these methods is close to zero and not statistically significant (p > 0.05), being heigh deviation (Xh) with p:0.130 and angulation difference of dental implants between the groups (Ang) with p:0.396.
Conclusion:
The acquisition of stereolithography image of the prosthesis using an intraoral scanner has a clinically acceptable accuracy, being in agreement with the conventional method.
