Chairside buffering using the Onpharma Onset system is designed to simplify chairside buffering and make local anesthetic less acidic, whether using articaine, lidocaine, prilocaine, or mepivacaine.
Local anesthetics begin as alkaline solutions, but manufacturers add hydrochloric acid to lower the pH to around 3.5 (or the same as lemon juice) to deliver a multiyear shelf life. However, a long-settled principle of parenteral injections is that an injection should be delivered at a pH as close as possible to the pH of the human body, approximately 7.4.
Onpharma gives dentists their first practical way to buffer the local anesthetic cartridge at chairside toward physiologic pH so practitioners no longer have to deliver an injection having the pH of lemon juice, according to the company.
Each 1.7-mL cartridge is secured in a spring-pressurized tray, with four cartridges per box. For more information, call Onpharma at (877) 336-6738 or visit onpharma.com.
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