Spouse anon needs a tooth extraction and has an appointment in a couple of weeks. Anon has been on the phone all morning with specialists asking if nano technology in local anesthesia can be avoided and exactly what did the anesthesia that they used contains.
Result:The dentist cancelled the appointment and told spouse anon to go to the hospital.
In other words, they didn't want the liability after giving the required full disclosure to the patient.
Placing calls to other dentists, they said that ALL brands now contain nano technology in local anesthesia and there is no further choice.
This may be anicdotal, but I suggest everyone just ask your dentist for verification.
GOOD LUCK.