CPC Class B33Y

A method of manufacturing pre-formed, customized, ceramic, labial/lingual orthodontic clear aligner attachments (CCAA) by additive manufacturing (AM) may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model, designing a 3D CAD structure model for one or more CCAA on various parts of each tooth, importing data related to the 3D CAD CCAA structure model into an AM machine, directly producing the CCAA in the ceramic slurry-based AM machine by layer manufacturing, enabling the provider to deliver patient-specific CCAA's by an indirect bonding method to the patient's teeth to improve the efficacy and retention of the clear aligners.

Systems and methods are provided for receiving, by a simulation model, a thermal gradient and a cooling rate associated with a 3D printing material as inputs for the simulation model. The systems and methods further include generating, by the simulation model executed by a processing system, characteristics associated with the 3D printing material as outputs of the simulation model based on the thermal gradient and the cooling rate associated with the 3D printing material.

A three-dimensional printing method for a three-dimensional printing system including a tank, a platform, an injection module, a warning module, a curing module, and a control module is provided. The control module is electrically connected to the curing module, the injection module, and the warning module. The method includes: analyzing a required amount of the liquid forming material corresponding to a three-dimensional object; obtaining a safe amount of the liquid forming material in the tank; and comparing the required amount and the safe amount, wherein the control module provides a response signal to the injection or warning module when the safe amount is less than the required amount. The injection module receives the response signal to inject the liquid forming material to the tank. The warning module receives the response signal to remind a user to provide the liquid forming material to the tank.