Statement Of Problem: Data on the accuracy of printed casts from complete-arch digital implant scans are lacking.
Purpose: The purpose of this in vitro study was to compare the 3D accuracy of printed casts from a complete-arch digital implant intraoral scan with stone casts from conventional impressions.
Material And Methods: An edentulous mandibular cast with 4 multiunit abutments with adequate anteroposterior spread was used as the master cast.
Objectives: The aim of this in vitro study was to compare the accuracy of printed implant casts from digital impressions with two intra-oral scanners (IOS) to stone casts from conventional impressions. The hypothesis was that printed casts would be more accurate than stone casts from conventional impressions.
Materials And Methods: A mandibular stone cast with Kennedy class II edentulism was fabricated using two internal connection tissue-level implants at 30 degrees to each other (Replace Select RP, Nobel Biocare) to serve as master.
Monolithic ceramics have been introduced in dentistry to help reduce technical complications reported with implant-supported metal-resin hybrid prostheses. This clinical report describes the maintenance and technical complications that occurred during a full-mouth implant rehabilitation using different prosthetic materials over a 7-year period. During the course of 4 of those years, multiple technical complications were encountered with the metal-resin hybrid prostheses, prompting the need for increased maintenance.
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