Data collection
mandibular anterior tooth
INFILTRATION, BLIND
A ‘split-mouth’ design was applied, where one mandibular anterior tooth was randomly extracted using a solitary labial infiltration of either 4% articaine (study group) or 2% lidocaine (control group). After 14 days, the other cross-arch mandibular anterior tooth was extracted using the other local anesthetic agent. The group allocation for the choice of the local anesthetic agent used in the first extraction session was done randomly using a computer-generated randomization list. In an attempt to blind the content of the anesthetic cartridges from the operator, identical cartridges were used and shielded with opaque adhesive. The surgeon, patients, and assessor were blinded from the type of local anesthetic used.