Facilitating Good Local Anaesthesia

Introduction: The dental syringe, since its introduction in 1921, has been very popular in operations performed under local anesthetics (LA). It can, however, be quite cumbersome to handle for people with petite hands. Therefore, the aim of this study is to introduce a technique of utilizing its sealed lignospan cartridges in a simpler way by using hypodermic syringe and needle to achieve effective local anaesthesia. Method: A 21-gauge hypodermic needle is fitted onto 2.5 mls syringe after aspiration of 1 ml of air and then, needle inserted into lignospan cartridge. The sheath of the needle is used to push the diaphragm of lignospan cartridge to transfer the solution into the syringe. Towards the end, the air from the syringe is expelled back into the cartridge, which in turn helps to empty the remaining content into the syringe on repeating the previous motion. Result: This technique of using lignospan cartridges with hypodermic syringe has, thus, proven to be very beneficial for local anaesthesia for different hand sizes, especially petite hands. Conclusion: This technique of LA infiltration is simple, convenient and efficacious. Hence, we would advocate all clinicians to incorporate this method of local infiltration into their armoury of techniques. Facilitating good local anaesthesia