PDF icon PDF herunterladen
Open Access
CC BY 4.0 · Eur J Dent 2023; 17(01): 039-045
DOI: 10.1055/s-0040-1718791
Original Article

Assessment of Deviations of Implants Installed with Prototyped Surgical Guide and Conventional Guide: In Vitro Study

João Marcelo Meireles Rodrigues
1   Department of Health Sciences, Postgraduation Program in Implantology, School of Dentistry, University of Araraquara, UNIARA, Araraquara, Sao Paulo, Brazil
,
Pâmela Leticia Santos
1   Department of Health Sciences, Postgraduation Program in Implantology, School of Dentistry, University of Araraquara, UNIARA, Araraquara, Sao Paulo, Brazil
,
Gustavo Mendonça
2   Division of Prosthodontics, Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States
,
Ana Paula de Souza Faloni
1   Department of Health Sciences, Postgraduation Program in Implantology, School of Dentistry, University of Araraquara, UNIARA, Araraquara, Sao Paulo, Brazil
,
Livia Sertori Finoti
3   Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
,
Rogério Margonar
1   Department of Health Sciences, Postgraduation Program in Implantology, School of Dentistry, University of Araraquara, UNIARA, Araraquara, Sao Paulo, Brazil
› Institutsangaben
› Weitere Informationen
Auch verfügbar aufeRef
  Lizenzen und Reprints
Preview

Abstract

Objective The study aimed to assess the angular and linear deviations of implants installed in mannequins aided by surgical guides produced with the techniques of dual tomography (DT), model-based tomography (MT), and nonprototyped guide.

Materials and Methods Implants were installed in mannequins of a partially edentulous maxilla and divided into three groups: Group C (n = 20), implants installed using the conventional technique with flap opening and conventional guide; Group DT (n = 20), implants installed using guided surgery with the dual tomography technique; and Group MT (n = 20), implants installed using the model-based tomography technique. After implant installation, the mannequin was subjected to a computed tomography (CT) to measure the linear and angular deviations of implant positioning relative to the initial planning on both sides.

Results There was a higher mean angular deviation in group C (4.61 ± 1.21, p ≤ 0.001) than in groups DT (2.13 ± 0.62) and MT (1.87 ± 0.94), which were statistically similar between each other. Similarly, the linear deviations showed group C with the greatest discrepancy in relation to the other groups in the crown (2.17 ± 0.82, p = 0.007), central (2.2 ± 0.77, p = 0.004), and apical (2.34 ± 0.8, p = 0.001) regions.

Conclusion The techniques of DT and MT presented smaller angular and linear deviations than the conventional technique with the nonprototyped guide. There was no difference between the two-guided surgery techniques.

Keywords

dental implants - surgical guides - guided surgery - computed tomography


Publikationsverlauf

Artikel online veröffentlicht:
05. September 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

Thieme Medical and Scientific Publishers Pvt. Ltd.
A-12, 2nd Floor, Sector 2, Noida-201301 UP, India