Machine learning based approach for surface roughness prediction in precision dental prototyping.

Complex geometries achievable with resin-based 3D printing are susceptible to lower levels of surface roughness, particularly in areas where support structures are attached and removed. The slicing parameter serves as the cornerstone for developing a model for predicting the corresponding output. In the present research, a resin 3D printer is used to fabricate the specimens in accordance with the combination of important parameters that were recovered utilizing the design of the experiment (DoE). Layer thickness, infill population density, print angle, exposure time, and lift speed are the five factors used to build DoE, which consists of 32 ideal runs for assessing surface roughness (SR). SR is a critical factor that influences the durability and effectiveness of dental devices. In order to anticipate output, a model is developed. To choose the best modelling strategies, a comparison of three base model techniques, artificial neural networks (ANN), support-vector regression (SVR), and decision trees (DT), as well as two ensemble techniques, random forest (RF) and XGboost, is conducted. This work utilized hyperparameter tuning for model improvement and use RMSE and R