In regard to your choice of anesthetic solutions, it is recommended to use 2%
Lidocaine with an epinephrine concentration of 1:100,000?

When using 4% Articaine a concentration of either 1:100,000 or 1:200,000
epinephrine may be used.
Recommended dosage is 1 full cartridge for a 2% anesthetic with a 1:100,000
concentration of epinephrine or a 1/2 cartridge for a 4% anesthetic with a
1:200,000 concentration of epinephrine.

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