Evaluation of complete-arch implant scanning with 5 different intraoral scanners in terms of trueness and operator experience.

Statement Of Problem: The intraoral scanning of the edentulous arch might be challenging for an inexperienced operator because of the large mucosal area and the use of scan bodies.

Purpose: The purpose of this ex vivo study was to compare the trueness of 5 intraoral scanners in replicating implant scan bodies and soft tissues in an edentulous maxilla and to investigate the effects of operator experience.

Material And Methods: The maxilla was resected from a fresh cadaver, 5 implants placed, and a reference scan made.

The effect of software updates on the trueness and precision of intraoral scanners.

Objectives: The goal of the study was to determine the effects of software updates on the trueness and precision of digital impressions obtained with a variety of intraoral scanner (IOS) systems.

Method And Materials: Seven IOS systems were investigated. Each system was tested using two versions of software, with the second version being the latest at the time of conducting the study.

The digital denture replication method (DRM): a simplified method to fabricate a complete removable prosthesis.

The proposed denture replication method shows a predictable workflow for fabricating complete dentures for patients with existing dentures. The replication technique is a method of fabricating new removable complete dentures utilizing the existing prosthesis as the foundation for a new denture. The technique has some advantages such as allowing the clinician to copy the tooth shape and contours of the existing prosthesis while modifying borders and intaglio surfaces.