The Effect of the Digital Manufacturing Technique, Preparation Taper, and Cement Type on the Retention of Aged Anterior Provisional Crowns: An In Vitro Study

A well-made provisional fixed prosthesis must present as a preview of the future and may also augment health abutments periodontium. Provisional restorations have been prepared chairside with polymethyl methacrylate (PMMA) since time immemorial. CAD/CAM additive subtractive technologies revolutionized fabrication interim in dental clinics. The current literature lacks substantial data about retention crowns manufactured using Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) techniques various temporary cements. This vitro study aims to assess compare temporary/provisional anterior based on combined effect different digital manufacturing techniques, preparation tapers, cements used for cementation. Two maxillary right central incisor typodont teeth were receive all-ceramic crowns, one 10-degree taper other 20-degree taper. Forty 3D-printed working models 10° forty 20° crowns. milled (20 from each group). Kerr Temp-Bond NE conventional cement clear cementation two groups. number samples per test group was 10. All thermocycled subjected universal testing machine measure pull-off force until loss (N) under tension crosshead speed 5 mm/min. highest 8, i.e., cemented cement, followed by groups 6, 7, 4, 5, 3, 2. Group 1, exhibited lowest retentive force. clinical selection long-term fabricated 3D-printing technology, or is most favorable terms can be an alternative CAD/CAM-milled provisionalization.