In vitro comparison of the accuracy of four intraoral scanners and three conventional impression methods for two neighboring implants.

ABSTRACT:

Purpose

To determine whether the accuracy of two-implant model impressions taken with optical scanners was inferior to that of those taken with elastomeric materials.

Materials and methods

Impressions of a resin reference model with two almost parallel implants were taken using three elastomeric impressions (closed tray technique, open tray nonsplinted technique and open tray splinted technique) and scanned with four optical scanners (CEREC Omnicam, 3M True Definition Scanner, 3Shape TRIOS3 and Carestream CS 3600). STL files of the different methods were superimposed and analyzed with control software (Geomagic Control X, 3D systems) to determine the mean deviation between scans.

Results

Compared to elastomeric impressions, optical impressions showed a significantly i

SUBMITTER: Roig E 

PROVIDER: S-EPMC7046187 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature