Influence of needle bevel design on injection pain and needle deformation in dental local infiltration anaesthesia – randomized clinical trial

The aims of this in vivo study were to evaluate the impact of needle bevel design on patients ’ pain perception and the mechanical deformation of the needle tip after the injection. In a prospective single-blinded trial, 150 patients received conventional infiltration anaesthesia for dental treatment by one examiner. Patients were randomized for one out of three different needle bevel type s (scalpel-designed bevel needle (SB), n=50; triple bevel needle (TB), n=50; regular bevel needle (RB), n=50).

Source: International Journal of Oral and Maxillofacial Surgery - July 12, 2017 Category: ENT & OMF Authors: M. Dau, I. Buttchereit, C. Ganz, B. Frerich, E.N. Anisimova, M. Daubl änder, P.W. Kämmerer Tags: Clinical Paper Source Type: research