The injection into the parodontal canal is quite effective for the anesthesia of a single tooth, including the underkieferseitenzahnbereich. Due to the fact that it has been shown that the Lokalansthetikum is distributed intravasally/intraossally upon application, systemic complications due to increased Adrenalin levels are not excluded27,34. As a result of this, and also due to the possibility of fractures in the parodontal connective tissue, a reduction in Adrenalinkonzentration is also justified here5. Abb. 4a Case of a Kariesexkavation after the administration of an intraligamentary anesthetic containing 4% Articain without Adrenalin: Injection of the Lokalansthetikum,
