Air Abrasion Unit is a dental device that uses a high-pressure stream of air and tiny abrasive particles to remove decay and prepare teeth for restorative procedures. It is a modern alternative to traditional dental drills and is preferred by many patients due to its minimally invasive nature. The unit works by blasting a stream of fine particles onto the tooth surface, which removes the decay without the need for drilling. Air abrasion is quieter and less painful than drilling and can often be performed without the need for anesthesia.

Additionally, it is less invasive and preserves more of the natural tooth structure, leading to better long-term outcomes. Overall, the Air Abrasion Unit is a valuable tool in modern dentistry. For the purpose of removing tooth structure in preparation for a restoration, compressed air, bottle carbon dioxide, or bottle nitrogen gas, or both, are used to create a stream of aluminium oxide particles. High-velocity abrasive particles erode small portions of tooth structure from the tooth.