Recent Advances in Local Anesthetic Agents and Techniques: A Review

Background: Local anesthesia remains the cornerstone of pain control in dentistry, ensuring patient comfort and facilitating successful treatment.However, limitations of conventional agents and delivery methods, such as delayed onset, injection discomfort, and safety concerns, have prompted ongoing innovations.Objective: This review aims to highlight recent advances in local anesthetic agents and techniques, with emphasis on novel formulations, delivery systems, and alternative modalities, comparing them with traditional approaches for improved clinical outcomes.Methods: A narrative review of recent literature was conducted, focusing on emerging anesthetic agents, computer-controlled delivery devices, vibrotactile systems, jet injectors, safety syringes, and alternative anesthesia methods such as cryoanesthesia, virtual anesthesia, and laser analgesia.Evidence from clinical trials and systematic reviews was analyzed to assess their efficacy, safety, and patient-centered outcomes.Results: Advancements in anesthetic agents, such as articaine and centbucridine, provide faster onset, longer duration, and improved safety profiles.Buffering of local anesthetics reduces injection pain and enhances effectiveness in inflamed tissues.Delivery innovations, including vibrotactile devices (Vibraject, DentalVibe), computer-controlled systems (Wand/Compudent, Comfort Control Syringe), jet injectors (MED-JET H III, Syrijet), and safety syringes, minimize discomfort, improve precision, and enhance safety.Alternative modalities like cryoanesthesia, virtual anesthesia, and laser analgesia show promising results in reducing pain and anxiety.Conclusion: Recent advances in local anesthetic agents and delivery techniques significantly enhance pain management in dentistry.These innovations improve patient comfort, address dental anxiety, and optimize safety, thereby fostering a more positive dental experience and expanding the scope of effective clinical practice.