Accuracy of complete-arch digital implant impression with or without scanbody splinting: An in vitro study

To assess accuracy of implant complete-arch digital impression with intraoral scanner (IOS) and implant scanbody splinting (ISS). An edentulous mandibular model with 4 analogues was fabricated. Four polyetheretherketone (PEEK) implant scanbodies (ISBs) were scanned, according to a randomized sequenc...

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Published in:Journal of dentistry 2022-04, Vol.119, p.104072-104072, Article 104072
Main Authors: Pozzi, Alessandro, Arcuri, Lorenzo, Lio, Fabrizio, Papa, Andrea, Nardi, Alessandra, Londono, Jimmy
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Complete-arch
Computer-Aided Design
Conformity
Dental Implants
Dental Impression Technique
Dentistry
Deviation
Digital dentistry
Digital impression
Edentulous
Error analysis
Error reduction
Evaluation
Humans
Imaging, Three-Dimensional
Implant scanbody
Intraoral scanner
Maximum likelihood method
Models, Dental
Mouth, Edentulous
Multivariate analysis
Optical scanners
Polyether ether ketones
Scanners
Standard deviation
Three dimensional printing
Transplants & implants
Variance analysis
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Londono, Jimmy
description To assess accuracy of implant complete-arch digital impression with intraoral scanner (IOS) and implant scanbody splinting (ISS). An edentulous mandibular model with 4 analogues was fabricated. Four polyetheretherketone (PEEK) implant scanbodies (ISBs) were scanned, according to a randomized sequence, by investigated IOS with (ISS+) and without implant scanbody splinting (ISS-), resulting in 30 test and 30 control files. The model was digitized by industrial optical scanner and the related file superimposed to the test and control files by a best fit algorithm. Linear (ΔX, ΔY and ΔZ-axis) and angular deviations (ΔANGLE) were evaluated for each analogue. A global measure of linear absolute error (ΔASS) was calculated considering the sum of absolute linear discrepancies. Influence of ISS and implant position on IOS accuracy was assessed using General Linear Model and possible interaction between ISS and implant position evaluated. Implant position showed a significant main effect (p
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An edentulous mandibular model with 4 analogues was fabricated. Four polyetheretherketone (PEEK) implant scanbodies (ISBs) were scanned, according to a randomized sequence, by investigated IOS with (ISS+) and without implant scanbody splinting (ISS-), resulting in 30 test and 30 control files. The model was digitized by industrial optical scanner and the related file superimposed to the test and control files by a best fit algorithm. Linear (ΔX, ΔY and ΔZ-axis) and angular deviations (ΔANGLE) were evaluated for each analogue. A global measure of linear absolute error (ΔASS) was calculated considering the sum of absolute linear discrepancies. Influence of ISS and implant position on IOS accuracy was assessed using General Linear Model and possible interaction between ISS and implant position evaluated. Implant position showed a significant main effect (p&lt;0.0001) and interaction with ISS (p=0.0454) when ΔASS was considered as response variable. Posterior implants resulted as less accurate. ISS was able to reduce ΔASS for both distal analogues (4.7, p=0.0188). When ΔANGLE was considered as a response variable, implant position and ISS showed significant main and interactive effects (p=0.0039, p&lt;0.0001, p&lt;0.0001). Analogue 3.6 was associated with highest angular discrepancy. This error was significantly reduced by ISS (p&lt;0.0001). Complete-arch implant digital impression with scanbody splinting showed a significant improvement of the overall accuracy, particularly reducing linear and angular deviations at the most critical posterior implant positions. : Intraoral scanner accuracy for implant complete-arch digital impression could be improved by a low cost, easy to assemble and use implant scanbodies splinting 3D printed modular chain.</description><identifier>ISSN: 0300-5712</identifier><identifier>EISSN: 1879-176X</identifier><identifier>DOI: 10.1016/j.jdent.2022.104072</identifier><identifier>PMID: 35189313</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Accuracy ; Algorithms ; Complete-arch ; Computer-Aided Design ; Conformity ; Dental Implants ; Dental Impression Technique ; Dentistry ; Deviation ; Digital dentistry ; Digital impression ; Edentulous ; Error analysis ; Error reduction ; Evaluation ; Humans ; Imaging, Three-Dimensional ; Implant scanbody ; Intraoral scanner ; Maximum likelihood method ; Models, Dental ; Mouth, Edentulous ; Multivariate analysis ; Optical scanners ; Polyether ether ketones ; Scanners ; Standard deviation ; Three dimensional printing ; Transplants &amp; implants ; Variance analysis</subject><ispartof>Journal of dentistry, 2022-04, Vol.119, p.104072-104072, Article 104072</ispartof><rights>2022</rights><rights>Copyright © 2022. 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Posterior implants resulted as less accurate. ISS was able to reduce ΔASS for both distal analogues (4.7, p=0.0188). When ΔANGLE was considered as a response variable, implant position and ISS showed significant main and interactive effects (p=0.0039, p&lt;0.0001, p&lt;0.0001). Analogue 3.6 was associated with highest angular discrepancy. This error was significantly reduced by ISS (p&lt;0.0001). 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An edentulous mandibular model with 4 analogues was fabricated. Four polyetheretherketone (PEEK) implant scanbodies (ISBs) were scanned, according to a randomized sequence, by investigated IOS with (ISS+) and without implant scanbody splinting (ISS-), resulting in 30 test and 30 control files. The model was digitized by industrial optical scanner and the related file superimposed to the test and control files by a best fit algorithm. Linear (ΔX, ΔY and ΔZ-axis) and angular deviations (ΔANGLE) were evaluated for each analogue. A global measure of linear absolute error (ΔASS) was calculated considering the sum of absolute linear discrepancies. Influence of ISS and implant position on IOS accuracy was assessed using General Linear Model and possible interaction between ISS and implant position evaluated. Implant position showed a significant main effect (p&lt;0.0001) and interaction with ISS (p=0.0454) when ΔASS was considered as response variable. Posterior implants resulted as less accurate. ISS was able to reduce ΔASS for both distal analogues (4.7, p=0.0188). When ΔANGLE was considered as a response variable, implant position and ISS showed significant main and interactive effects (p=0.0039, p&lt;0.0001, p&lt;0.0001). Analogue 3.6 was associated with highest angular discrepancy. This error was significantly reduced by ISS (p&lt;0.0001). Complete-arch implant digital impression with scanbody splinting showed a significant improvement of the overall accuracy, particularly reducing linear and angular deviations at the most critical posterior implant positions. : Intraoral scanner accuracy for implant complete-arch digital impression could be improved by a low cost, easy to assemble and use implant scanbodies splinting 3D printed modular chain.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>35189313</pmid><doi>10.1016/j.jdent.2022.104072</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-3052-8186</orcidid><orcidid>https://orcid.org/0000-0002-6152-3337</orcidid></addata></record>
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ispartof Journal of dentistry, 2022-04, Vol.119, p.104072-104072, Article 104072
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source ScienceDirect Freedom Collection
subjects Accuracy
Algorithms
Complete-arch
Computer-Aided Design
Conformity
Dental Implants
Dental Impression Technique
Dentistry
Deviation
Digital dentistry
Digital impression
Edentulous
Error analysis
Error reduction
Evaluation
Humans
Imaging, Three-Dimensional
Implant scanbody
Intraoral scanner
Maximum likelihood method
Models, Dental
Mouth, Edentulous
Multivariate analysis
Optical scanners
Polyether ether ketones
Scanners
Standard deviation
Three dimensional printing
Transplants & implants
Variance analysis
title Accuracy of complete-arch digital implant impression with or without scanbody splinting: An in vitro study
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