Securinject is a single-use safety syringe designed to administer local anesthesia and prevent accidental needle stick injuries and cross infections for healthcare professionals like dentists, surgeons, and podiatrists. It has a locking mechanism that protects against needle sticks and can safely dismantle used needles for disposal. Regular syringes pose cross-infection risks, while Securinject's single-use design prevents contamination through its easy-to-use, cost-effective features that meet modern clinical needs.