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Published in: BMC Oral Health 1/2023

Open Access 01-12-2023 | Research

Accuracy of computer-aided static and dynamic navigation systems in the placement of zygomatic dental implants

Authors: Juan Ramón González Rueda, Agustín Galparsoro Catalán, Víctor Manuel de Paz Hermoso, Elena Riad Deglow, Álvaro Zubizarreta-Macho, Jesús Pato Mourelo, Javier Montero Martín, Sofía Hernández Montero

Published in: BMC Oral Health | Issue 1/2023

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Abstract

Background

Zygomatic implants are widely used in the rehabilitation of severely atrophic maxillae, but implant placement is not without risks, and it can potentially cause damage to related anatomical structures. The aim of this study was to perform a comparative analysis of the accuracy of static navigation systems in placing zygomatic dental implants in comparison to dynamic navigation systems.

Methods

Sixty zygomatic dental implants were randomly allocated to one of three study groups, categorized by which implant placement strategy was used: A: computer-aided static navigation system (n = 20) (GI); B: computer-aided dynamic navigation system (n = 20) (NI); or C: free-hand technique (n = 20) (FHI). For the computer-aided study groups, a preoperative cone-beam computed tomography (CBCT) scan of the existing situation was performed in order to plan the approach to be used during surgery. Four zygomatic dental implants were inserted in each of fifteen polyurethane stereolithographic models (n = 15), with a postoperative CBCT scan taken after the intervention. The pre- and postoperative CBCT scans were then uploaded to a software program used in dental implantology to analyze the angular deviations, apical end point, and coronal entry point. Student’s t-test was used to analyze the results.

Results

The results found statistically significant differences in apical end-point deviations between the FHI and NI (p = 0.0053) and FHI and GI (p = 0.0004) groups. There were also statistically significant differences between the angular deviations of the FHI and GI groups (p = 0.0043).

Conclusions

The manual free-hand technique may enable more accurate placement of zygomatic dental implants than computer-assisted surgical techniques due to the different learning curves required for each zygomatic dental implant placement techniques.
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Metadata
Title
Accuracy of computer-aided static and dynamic navigation systems in the placement of zygomatic dental implants
Authors
Juan Ramón González Rueda
Agustín Galparsoro Catalán
Víctor Manuel de Paz Hermoso
Elena Riad Deglow
Álvaro Zubizarreta-Macho
Jesús Pato Mourelo
Javier Montero Martín
Sofía Hernández Montero
Publication date
01-12-2023
Publisher
BioMed Central
Published in
BMC Oral Health / Issue 1/2023
Electronic ISSN: 1472-6831
DOI
https://doi.org/10.1186/s12903-023-02856-9

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