Advanced superimposition method to evaluate the marginal and internal fit of ceramic crowns fabricated using heat pressing techniques.

ABSTRACT:

Background

Digital technologies can enhance the success of permanent crowns. The present study aimed to evaluate marginal adaptation and internal fit of permanent crowns fabricated using stereolithography (SLA) and digital light processing (DLP) 3D printing technologies following scans using two different intraoral scanners (IOS) (Medit i700, shape (TRIOS 3)).

Methods

Three typodont #14 teeth were prepared for full veneer all ceramic crowns with three types of margins-chamfer (CFL), rounded shoulder (RSFL) and rounded shoulder with bevel (RSBFL). A total of 360 study models were made and divided into two groups based on the type of intraoral scanner used for digital impressions. Group A in which the intraoral scanner MEDIT i700 was used, and Group B in which intraoral scanne

SUBMITTER: Alqahtani NM 

PROVIDER: S-EPMC11972566 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature