Accuracy of Two Digital Implant Impression Systems Based on Confocal Microscopy with Variations in Customized Software and Clinical Parameters

Abstract

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The effect of scanning the palate and scan body position on the accuracy of complete‐arch implant scans

“…Significant differences in trueness about distance deviation were found between different scan body positions in cross arches (P1‐P3, P1‐P4, P2‐P3, P2‐P4; P < .001) independent of anterior or posterior scan body positions. This might be due the curvature of maxillary arch . P1 and P2 positions had significantly lower ( P < .001) distance deviations than P3 and P4, whereas no significant difference was found between these pairs ( P = .50).…”

“…In terms of angular deviation, no significant difference was found between two anterior scan body positions (P2‐P3; P = .99). This might be due to the linear scanning path at the anterior arch where these two implants were positioned . During the scans of multiple implants, it may be challenging the IOS to differentiate identical ISBs and to identify their location .…”

“…Geometrical features on the scan bodies supply information about the implant orientation, angulation, and 3D spatial position within the dental arch . Digital implant scans can be performed directly following a digital workflow using intraoral scan bodies (ISBs) attached to the implants and an intraoral scanner (IOS) to capture the topography of the ISBs and the surrounding oral structures . Digital implant scanning techniques using direct digital workflow have been popular in recent years parallel with the development of various intraoral scanners (IOSs) and their reported advantages .…”

“…Nevertheless, the accuracy of intraoral digital implant scan is affected by several factors; the IOS system, software program associated with the digital scan system, different scan bodies, experience of the operator, angulation and position of the implant(s), and quadrant . In the literature, few studies have investigated the accuracy of ISBs that represents the 3D spatial position of implants …”

Digital process for an implant-supported fixed dental prosthesis: A clinical report

“…Many studies show high accuracy of intraoral scanners (IS) and the positive impact of digital impression in implant prosthetics. [19][20][21][22][23][24] Additionally, the workflow did not require a clinical evaluation of the abutments and restorations before insertion.…”