What is the volume of a single carpule of local anesthetic?

What is the volume of a single carpule of local anesthetic?

• A. 1.0 ml
• B. 1.8 ml
• C. 2.0 ml
• D. 2.2 ml

Answer: (B)

In dentistry, the carpule size is standardized so a single cartridge delivers a practical, safe dose when used with a typical syringe and vasoconstrictor concentration. The usual cartridge volume is one point eight milliliters, which places it just under two milliliters and is chosen to balance delivering enough anesthetic with efficient syringe design and minimal waste. That capacity fits standard clinical needs for most nerve blocks or local infiltrations, while larger volumes would require different cartridge sizes and smaller volumes could underdose. So the one point eight milliliters cartridge is the standard reference for a single carpule.

In dentistry, the carpule size is standardized so a single cartridge delivers a practical, safe dose when used with a typical syringe and vasoconstrictor concentration. The usual cartridge volume is one point eight milliliters, which places it just under two milliliters and is chosen to balance delivering enough anesthetic with efficient syringe design and minimal waste. That capacity fits standard clinical needs for most nerve blocks or local infiltrations, while larger volumes would require different cartridge sizes and smaller volumes could underdose. So the one point eight milliliters cartridge is the standard reference for a single carpule.