Accuracy of digital planning in zygomatic implants

Abstract Background Zygomatic implants have been described as a therapeutic alternative for patients with severe maxillary atrophy in order to avoid bone augmentation procedures. Taking that into account, in these treatments, the key factor is the position of the implant, the virtual surgical planni...

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Main Authors: B. Xing Gao, O. Iglesias-Velázquez, F. G.F. Tresguerres, A. Rodríguez González Cortes, I. F. Tresguerres, R. Ortega Aranegui, R. M. López-Pintor, J. López-Quiles, J. Torres
Format: Article
Language:English
Published: SpringerOpen 2021-07-01
Series:International Journal of Implant Dentistry
Subjects:
Online Access:https://doi.org/10.1186/s40729-021-00350-x
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author B. Xing Gao
O. Iglesias-Velázquez
F. G.F. Tresguerres
A. Rodríguez González Cortes
I. F. Tresguerres
R. Ortega Aranegui
R. M. López-Pintor
J. López-Quiles
J. Torres
author_facet B. Xing Gao
O. Iglesias-Velázquez
F. G.F. Tresguerres
A. Rodríguez González Cortes
I. F. Tresguerres
R. Ortega Aranegui
R. M. López-Pintor
J. López-Quiles
J. Torres
author_sort B. Xing Gao
collection DOAJ
description Abstract Background Zygomatic implants have been described as a therapeutic alternative for patients with severe maxillary atrophy in order to avoid bone augmentation procedures. Taking that into account, in these treatments, the key factor is the position of the implant, the virtual surgical planning (VSP) is widespread among most clinicians before surgery on the patient. However, there are no studies which evaluate the clinical relevance of these VSP. The aim of this study is to determine whether digital planning on zygomatic implants has any influence on the implant dimensions and position, even when performing conventional surgery afterwards. Results Fourteen zygomatic implants were placed in four patients. Pre-operative and post-operative helicoidal computed tomography were performed to each patient to allow the comparison between the digital planning and the final position of implants. Tridimensional deviation (TD), mesio-distal deviation (MDD), bucco-palatine deviation (BPD), and apico-coronal deviation (ACD) were evaluated as well as angular deviation (AD). Significative differences in apical TD were observed with a mean of 6.114 ± 4.28 mm (p < 0.05). Regarding implant position, only implants placed in the area of the first right molar reported significant differences (p < 0.05) for ACD. Also, implant length larger than 45 mm showed BPD significative differences (p < 0.05). Conclusions Zygomatic implant surgery is a complex surgical procedure, and although VSP is a useful tool which helps the clinician determine the number and the length of zygomatic implants as well as its proper position, surgical experience is still mandatory.
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spelling doaj.art-bc4995ff48d341e69b411d9133ac57702022-12-21T22:10:52ZengSpringerOpenInternational Journal of Implant Dentistry2198-40342021-07-01711810.1186/s40729-021-00350-xAccuracy of digital planning in zygomatic implantsB. Xing Gao0O. Iglesias-Velázquez1F. G.F. Tresguerres2A. Rodríguez González Cortes3I. F. Tresguerres4R. Ortega Aranegui5R. M. López-Pintor6J. López-Quiles7J. Torres8Department of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Sao PauloDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityDepartment of Dental Clinical Specialties, Faculty of Dentistry, Complutense UniversityAbstract Background Zygomatic implants have been described as a therapeutic alternative for patients with severe maxillary atrophy in order to avoid bone augmentation procedures. Taking that into account, in these treatments, the key factor is the position of the implant, the virtual surgical planning (VSP) is widespread among most clinicians before surgery on the patient. However, there are no studies which evaluate the clinical relevance of these VSP. The aim of this study is to determine whether digital planning on zygomatic implants has any influence on the implant dimensions and position, even when performing conventional surgery afterwards. Results Fourteen zygomatic implants were placed in four patients. Pre-operative and post-operative helicoidal computed tomography were performed to each patient to allow the comparison between the digital planning and the final position of implants. Tridimensional deviation (TD), mesio-distal deviation (MDD), bucco-palatine deviation (BPD), and apico-coronal deviation (ACD) were evaluated as well as angular deviation (AD). Significative differences in apical TD were observed with a mean of 6.114 ± 4.28 mm (p < 0.05). Regarding implant position, only implants placed in the area of the first right molar reported significant differences (p < 0.05) for ACD. Also, implant length larger than 45 mm showed BPD significative differences (p < 0.05). Conclusions Zygomatic implant surgery is a complex surgical procedure, and although VSP is a useful tool which helps the clinician determine the number and the length of zygomatic implants as well as its proper position, surgical experience is still mandatory.https://doi.org/10.1186/s40729-021-00350-xZygomatic implantsDigital planningSurgical guides
spellingShingle B. Xing Gao
O. Iglesias-Velázquez
F. G.F. Tresguerres
A. Rodríguez González Cortes
I. F. Tresguerres
R. Ortega Aranegui
R. M. López-Pintor
J. López-Quiles
J. Torres
Accuracy of digital planning in zygomatic implants
International Journal of Implant Dentistry
Zygomatic implants
Digital planning
Surgical guides
title Accuracy of digital planning in zygomatic implants
title_full Accuracy of digital planning in zygomatic implants
title_fullStr Accuracy of digital planning in zygomatic implants
title_full_unstemmed Accuracy of digital planning in zygomatic implants
title_short Accuracy of digital planning in zygomatic implants
title_sort accuracy of digital planning in zygomatic implants
topic Zygomatic implants
Digital planning
Surgical guides
url https://doi.org/10.1186/s40729-021-00350-x
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