Accuracy of implant-supported crowns fabricated by additive and subtractive manufacturing technologies using ceramic-filled resins: An in vitro study

Key Points

• This research aims to compare the accuracy of implant-supported crowns made from ceramic-filled resins using different manufacturing technologies.
• Compared additive manufacturing and subtractive manufacturing techniques.
• Evaluated accuracy focusing on intaglio and margin regions.
• Conducted in vitro testing to assess internal fit.
• The SM group showed the highest accuracy among the methods tested.
• DLP method exhibited the lowest accuracy, particularly at the margins.
• All methods achieved intaglio accuracy values deemed clinically acceptable.