Clear aligners are custom-made orthodontic devices that are used to straighten teeth. They are made using advanced computer-aided design (CAD) and manufacturing (CAM) technology. The process typically begins with the dentist or orthodontist taking impressions of the patient’s teeth, which are then used to create a digital 3D model of the teeth. The dentist or orthodontist uses this model to plan the movement of the teeth and to design the sequence of clear aligners that will be needed to achieve the desired result. The aligners are then manufactured using a specialized 3D printing process, which creates a precise and custom-fitted set of aligners for the patient.