Intrapulpal injection: factors related to effectiveness.
The intrapulpal injection is commonly used when conventional anesthetic techniques fail during endodontic procedures.


OBJECTIVE
This was a double-blind clinical study conducted to determine whether anesthetic solution was related to an effective intrapulpal injection.


METHODS
Thirty-five intrapulpal injections were given, all with back-pressure and either saline solution or anesthetic (2% lidocaine with 1:100,000 epinephrine).


RESULTS
Thirty-three of the 35 injections were effective. Statistical analysis showed no significant difference between the two solutions.


CONCLUSIONS
Data indicate that an effective intrapulpal injection depends on back-pressure and is independent of the solution used.
VanGheluwe
J
J
Division of Endodontics, University of Colorado School of Dentistry, Denver, USA.
Walton
R
R
D000766:Anesthesia, Dental / Q000379:methods*; D000772:Anesthesia, Local / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage*; D003782:Dental Pulp; D004311:Double-Blind Method; D006801:Humans; D007267:Injections; D008012:Lidocaine / Q000008:administration & dosage*; D011312:Pressure; D011446:Prospective Studies; D012390:Root Canal Therapy / Q000379:methods
D000779:Anesthetics, Local; D008012:Lidocaine