PMID- 38109396 OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int J Prosthodont JT - The International Journal of Prosthodontics IS - 1942-4426 (Electronic) IS - 0893-2174 (Print) IP - 6 VI - 36 PST - ppublish DP - 2023 PG - 748-753 LA - en TI - Comparative Mechanical Testing for Digitally Produced Provisional Fixed Partial Dentures vs the Conventional Method: An In Vitro Study LID - 10.11607/ijp.6440 [doi] FAU - Othman, Ahmed AU - Othman A FAU - Ströbele, Dragan A. AU - Ströbele D FAU - Lüllmann, Alexander AU - Lüllmann A FAU - Stehle, Oliver AU - Stehle O FAU - Alevizakos, Vasilios AU - Alevizakos V FAU - See, Constantin von AU - See C CN - AB - Purpose: To examine and compare the fracture strength of implant-cemented fixed partial denture (FPD) prostheses fabricated with digital vs conventional chairside methods. Materials and Methods: Three groups of seven specimens each were produced: group A (3D printing); group B (milling); and group C (conventional chairside manufacturing), which served as a control. All groups were cemented to standard implant abutments placed in artificial bone blocks. Fracture strength testing was performed using a universal testing machine. Statistical analysis of the resultant maximum forces was performed using SPSS version 25 software (Mann- Whitney U test, P < .05). Results: The mean fracture load value of the group A FPDs was 260.14 N ± 28.88, for group B was 663.57 N ± 140.55, and for group C was 266.65 N ± 63.66. Conclusions: Milled provisional FPDs showed a higher fracture resistance compared to 3D-printed and control groups. However, no such difference could be detected between the 3D-printed and control groups. AID - 1252373