 The function of this instrument involves successfully piercing the surface of the periodontal ligament so the patient can be distributed the anesthesia.Past devices have proven to be insufficient because it instilled fear in patients and made it exhaustingly uncomfortable for dentists to use because of the bulky size.With how simple it is to hide it in the hand due to the smaller size of modern day anesthetic syringes, dentists are successfully able to maneuver in a patient's mouth without causing harm to the patient being treated, allowing for a quick insert of the anesthesia followed by the dentist being able move on swiftly to the next task of the dental visit.