<unk>  is deposition of an analgesic drug close to the apex of a tooth so that it can diffuse to reach the nerve entering the apical foramina. It is the most routinely used in dental local treatment.
Infiltration analgesia
Local anesthesia
Analgesic adjuvant
Catheter lock solution
Antiseptic lavage
Electroanalgesia
Placebo analgesia
Procedural sedation and analgesia