Methods included using a chemical solvent, ultrasonic curettes, and laser equipment. There are numerous different universal curettes that differ slightly in design. It is conducted by hand instrumentation such as curettes or scalers and ultrasonic instrumentation. They differ from periodontal curettes, which possess a blunt tip. Gracey curettes are a popular type of area specific curettes. The Gracey curettes and areas of use are shown in Table 1. Periodontal scalers and periodontal curettes are some of the tools involved. An example of these are called After-Five curettes. Together with periodontal curettes, periodontal scalers are used to remove calculus from teeth. With this being said, universal curettes can still be used throughout the entire mouth. Gracey curettes have a stronger, rigid shank and angulated working blades that are area specific. These instruments include files, curettes, after fives and mini fives used for mechanical debridement. Universal curettes are double-ended instruments with paired mirror working ends and a rounded toe. Curettes are then used to remove the entire cyst from the diaphysis. Curettes can be divided into two subgroups&colon; universals and area specific instruments.