Comparison of anesthesic properties in two distincts anestehesic techniques for inferior molars

Abstract Introduction The fear of pain is one of the main reasons why many patients avoid undergoing dental treatment. In many dental procedures, the use of local anesthetics is necessary. Morpheus® system, which began to be marketed in Brazil in 2005, provides insertion of the needle painlessly and satisfactory anesthesia with lower volume of local anesthetic. When there is need for intervention in molars and premolars, advocated the use of this device to intrasseptal CaZOE technical replacing traditional inferior alveolar nerve block (IANB). Objective This research work treated in a randomized duble-blind, and crossover, whose objective was to evaluate the anesthetic properties by intrasseptal CaZOE technical and traditional inferior alveolar nerve block (IANB). Material and method The study was be conducted in two sessions. The procedures were be performed by a single operator previously trained. Physical parameters were evaluated, O2 saturation, anxiety, pain sensitivity, efficiency, latency and duration of anesthesia as compared to each of the techniques. Result There were no significant differences in the physical parameters and the O2 saturation, the intrasseptal technical CaZOE showed greater success, shorter latency and shorter duration compared to IANB, and shorter perception painful at execution when compared to IANB. Conclusion Inserting the electronic injection in routine dental clinic provide greater comfort to patients undergoing local anesthesia and decrease the abandonment of dental treatments for fear and anxiety associated with local anesthesia.