A custom tray, also known as a custom impression tray, is a dental device used in various dental procedures. It is a tray that is custom-made to precisely fit a patient's oral structures, ensuring accurate impressions of the teeth and surrounding tissues. Custom trays are typically made from materials like acrylic or thermoplastic resin, providing durability and stability during impression-taking processes such as crown and bridge work, denture fabrication, or orthodontic treatment. The custom fit of the tray improves patient comfort and allows for more precise and reliable impressions, leading to better-fitting restorations and treatment outcomes. Custom trays play a crucial role in achieving optimal dental results by providing a reliable and efficient means of capturing accurate oral impressions.