Effect of scan pattern on the scan accuracy of a combined healing abutment scan body system

Yılmaz, Hakan; Arınç, Hakan; Çakmak, Gülce; Atalay, Sevda; Dönmez, Mustafa Borga; Kökat, Ali Murat; Yılmaz, Burak

doi:10.1016/j.prosdent.2022.01.018

Cited by 16 publications

(22 citation statements)

References 26 publications

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“…Previous studies investigating scan accuracy of implant-supported FPDs digitized with IOSs, by using global best-fit algorithm for superimpositions, reported smaller deviations than those measured in the present study [8,38]. Studies on single implants, which used a methodology similar to that in present study [7,17,25] also support this hypothesis, as in Yilmaz et al's [25] study, reported greatest mean 3D point deviation was 178 µm for IOSs and 197 µm for digitized casts. In the same study [25], mean mesiodistal angular deviations were 0.27 • for IOSs and 0.91 • for digitized casts.…”

Section: Discussionsupporting

confidence: 79%

“…Incorporation of computer-aided design and computer-aided manufacturing (CAD-CAM) technologies has been one of the paramount advancements in dentistry [1][2][3][4][5]. These advancements have facilitated the use of intraoral scanners (IOSs) in various dental applications, including implant prosthodontics [6][7][8]. Direct digital impressions of implants minimize clinic-and laboratory-related shortcomings of conventional impressions [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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In vitro scan accuracy and time efficiency in various implant-supported fixed partial denture situations

Abou‐Ayash

Mathey²,

Gäumann³

et al. 2022

Journal of Dentistry

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Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

In vitro scan accuracy and time efficiency in various implant-supported fixed partial denture situations

Abou‐Ayash

Mathey²,

Gäumann³

et al. 2022

Journal of Dentistry

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“…CP and TR have also been used in studies on scan accuracy of single implants. 4,5,[10][11][12] Maximum mean 3D distance deviation reported in those studies was 178 μm, 11 which is higher than both maximum median 3D (172.17 μm in Model 3) and inter-implant (24.92 μm in Model 2) distance deviations measured in the present study. A recent systematic review has shown that 160 μm of vertical and 150 μm of horizontal misfit did not cause complications in implant-supported restorations.…”

Section: Discussioncontrasting

confidence: 68%

“…The authors 24 compared the complete‐arch scan accuracy of different FPD situations and concluded that the CP scans had accuracy that was either similar to or higher than that of TR scans, which is in line with the results of the present study. CP and TR have also been used in studies on scan accuracy of single implants 4,5,10–12 . Maximum mean 3D distance deviation reported in those studies was 178 μm, 11 which is higher than both maximum median 3D (172.17 μm in Model 3) and inter‐implant (24.92 μm in Model 2) distance deviations measured in the present study.…”

Section: Discussioncontrasting

confidence: 51%

Effect of intraoral scanner and fixed partial denture situation on the scan accuracy of multiple implants: An in vitro study

Dönmez

Mathey

Gäumann

et al. 2023

Clin Implant Dent Rel Res

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Background: Accuracy of intraoral implant scans may be affected by the region of the implant and the type of the intraoral scanner (IOSs). However, there is limited knowledge on the scan accuracy of multiple implants placed for an implant-supported fixed partial denture (FPD) in different partially edentulous situations when digitized by using different IOSs.Purpose: To investigate the effect of IOS and FPD situation on the scan accuracy of two implants when partial-arch scans were performed. Materials and Methods: Tissue level implants were placed in 3 maxillary models with implant spaces either at right first premolar and right first molar sites (Model 1, 3-unit FPD), at right canine and right first molar sites (Model 2, 4-unit FPD), or at lateral incisor sites (Model 3, 4-unit FPD). Reference standard tessellation language (STL) files of the models were generated by using an optical scanner (ATOS Capsule 200MV120). Two IOSs (CEREC Primescan [CP] and TRIOS 3 [TR]) were used to perform partial-arch scans (test-scans) of each model (n = 14), which were exported in STL format. A metrology-grade analysis software (GOM Inspect 2018) was used to superimpose test-scan STLs over the reference STL to calculate 3D distance, interimplant distance, and angular (mesiodistal and buccopalatal) deviations. Trueness and precision analyses were performed by using bootstrap analysis of variance followed by Welch tests with Holm correction (α = 0.05).Results: Trueness of the scans was affected by IOS and FPD situation when 3D distance deviations were considered, while inter-implant distance, mesiodistal angular, and buccopalatal angular deviations were only affected by the FPD situation (p < 0.001). Scan precision was affected by the interaction between the IOSs and the FPD situation when 3D distance and buccopalatal angular deviations were

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“…11,12,[57][58][59][60][61][62] Limited studies have analyzed the influence of the scanning pattern on scanning accuracy of half-and complete-arch intraoral digital scans (Figure 3), reporting contradictory results (Table 3). [38][39][40]63,64…”

Section: Scanning Patternmentioning

confidence: 99%

Intraoral digital implant scans: Parameters to improve accuracy

Revilla‐León,

Lanis,

Yilmaz

et al. 2023

Journal of Prosthodontics

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PurposeTo report the means to maximize the predictability and accuracy of intraoral digital implant scans through the evaluation of operator and patient related factors.Materials and MethodsCollection of published articles related to factors that can decrease the scanning accuracy of intraoral digital implant scans was completed in 4 data sources: MEDLINE, EMBASE, EBSCO, and Web of Science. All studies related to variables that can influence the accuracy of intraoral digital implant scans obtained by using intraoral scanners (IOSs) were considered. These variables included ambient lighting, scanning pattern, implant scan body (ISB) design, techniques for splinting ISBs, arch location, implant position and inter‐implant distance.ResultsAmong operator‐related factors, ambient lighting conditions, scanning pattern, and ISB design (material, geometry, and retention design) can impact the accuracy of intraoral digital implant scans. It is unclear the optimal ISB for maximizing the IOSs accuracy; however, polymer ISB can wear with multiple reuse and sterilization methods. Among patient‐related factors, additional variables should be considered, namely arch (maxillary vs mandibular arch), implant position in the arch, inter‐implant distance, implant depth, and angulation.ConclusionsAmbient lighting conditions should be established based on the IOS selected to optimize the accuracy of intraoral digital implant scans. The optimal scanning pattern may vary based on the IOS, clinical situation, and the number of implants. The optimal ISB design may vary depending on the IOS used. Metallic implant scan bodies are preferred over polymer ISB designs to minimize wear due to multiple use and sterilization distortion. Among patient‐related factors, additional variables should be considered namely the arch scanned, implant position in the arch, inter‐implant distance, implant depth and angulation. The impact of these factors may vary depending on the IOS selected.This article is protected by copyright. All rights reserved

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Effect of scan pattern on the scan accuracy of a combined healing abutment scan body system

Cited by 16 publications

References 26 publications

In vitro scan accuracy and time efficiency in various implant-supported fixed partial denture situations

In vitro scan accuracy and time efficiency in various implant-supported fixed partial denture situations

Effect of intraoral scanner and fixed partial denture situation on the scan accuracy of multiple implants: An in vitro study

Intraoral digital implant scans: Parameters to improve accuracy

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