Tooth regeneration is a broad term that encompasses various methods of restoring lost teeth or restoring them to their original form. It tends to involve either the substitution of lost tissues or the stimulation of new tissue growth. It is a common treatment for both adults and children and is performed by dentists and specialised oral surgeons. There are a few different methods of tooth regeneration, depending on the severity of the damage to the teeth. Tooth displacement can be treated with repositioning and fixation. The displaced tooth is reinserted into its hole with the help of metal wires and dental implants. These can also help protect the reinserted tooth from further damage. The most common form of tooth regeneration is root canal therapy. This treatment involves cleaning the inside of the tooth, filing it down, reshaping it, and then filling it with a sealing material. This process allows the tooth to be fully repaired and function again. Another popular method of tooth regeneration is the use of stem cells from either the patient's own bone marrow or from another donated source. Stem cells can be used to regenerate certain tissues of the tooth, including the root, enamel, dentine, and gums. This process is still quite new but is showing promise. Finally, regenerative dentistry is becoming increasingly popular with the advent of 3D printing technology. This involves fabricating artificial teeth from a combination of metal and ceramic materials. This method is particularly useful for complete tooth replacement or repair. It has been successful in treating fractured, damaged, or missing teeth. Tooth regeneration is a relatively new development, and while it has seen some successful applications in treating damaged teeth, more research and development needs to be done to increase its efficacy.