Which of the following is classified as a topical ester local anesthetic commonly used in dentistry?

Benzocaine is the most commonly used topical ester local anesthetic in dentistry. It is available in gels, sprays, and liquids at concentrations of 7.5% to 20% and is used to anesthetize the oral mucosa before needle injections. As an ester anesthetic, it is metabolized by plasma pseudocholinesterase to PABA (para-aminobenzoic acid), which can cause allergic reactions in sensitive patients. In contrast, mepivacaine and prilocaine are amide local anesthetics. Tetracaine is also an ester but is less commonly used as a topical dental anesthetic in current practice compared to benzocaine.