Demirel, MünirTürksayar, Almira Ada DikenPetersmann, SandraSpintzyk, SebastianDönmez, Mustafa Borga2025-04-182025-04-182024Demirel, M., Diken Türksayar, A. A., Petersmann, S., Spintzyk, S., & Donmez, M. B. (2024). Dimensional Stability of Additively Manufactured Dentate Maxillary Diagnostic Casts in Biobased Model Resin. Materials, 17(9), 2128.1996-1944http://dx.doi.org/10.3390/ma17092128https://hdl.handle.net/20.500.12713/6718This study aimed to evaluate the dimensional stability of maxillary diagnostic casts fabricated from a biobased model resin, which consists of 50% renewable raw materials for sustainable production, a model resin, and stone, over one month. A master maxillary stone cast was digitized with a laboratory scanner to generate a reference file. This master cast was also scanned with an intraoral scanner to additively manufacture casts with a biobased model resin (BAM) and a model resin (AM). Polyvinylsiloxane impressions of the master cast were also made and poured in type III stone (CV) (n = 8). The same laboratory scanner was used to digitize each model one day (T0), 1 week (T1), 2 weeks (T2), 3 weeks (T3), and 4 weeks (T4) after fabrication. Deviations from the reference file were calculated with an analysis software and analyzed with generalized linear model analysis (alpha = 0.05). The interaction between the material and the time point affected measured deviations (p < 0.001). Regardless of the time point, CV had the lowest and AM had the highest deviations (p < 0.001). BAM mostly had lower deviations at T0 and mostly had higher deviations at T4 (p <= 0.011). AM had the highest deviations at T4 and then at T3, whereas it had the lowest deviations at T0 (p <= 0.002). The measured deviations of CV increased after each time point (p < 0.001). BAM casts had deviations within the previously reported clinically acceptable thresholds over one month and had acceptable dimensional stability. Therefore, tested biobased resin may be a viable alternative for the sustainable manufacturing of maxillary diagnostic casts that are to be used clinically.eninfo:eu-repo/semantics/openAccessAdditive ManufacturingBiobased Model ResinDental CastDimensional StabilitySustainable ManufacturingArticle17911138730934WOS:0012205827000012-s2.0-85192748299Q110.3390/ma17092128Q2