Precision in Dermal Filling: A Comparison Between Needle and Cannula When Using Soft Tissue Fillers.

Abstract

If precision in filler injection is defined as the filler material remaining in the plane of intended implantation, then using cannulas resulted in a more precise injection of material as compared to needles. Applications with needles resulted in the distribution of material into more superficial layers, which was not noted for cannulas. <em>J Drugs Dermatol. 2017;16(9):866-872.</em> .