Abstract
Making an impression is the most crucial step in creating a single crown. This systematic review was conducted to assess the fit of zirconia crowns utilizing both digital and conventional impression techniques, as the evidence about the marginal fit of digital and conventional impressions is less clear. A search of the literature was conducted using the different electronic databases. In accordance with the inclusion and exclusion criteria, the articles were searched. After doing a statistical analysis on the combined data, conclusions were drawn. According to the results of the current study, digital impression technology outperformed traditional impression technique in terms of marginal fit correctness.