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. Author manuscript; available in PMC: 2018 Jun 13.
Published in final edited form as: J Vis Exp. 2018 May 3;(135):10.3791/57521. doi: 10.3791/57521

Figure 4. Maintaining syringe pressure following injection improves material retention.

Figure 4

Following retroductal injections of 50 μL of 1% toluidine blue, syringe pressure was either maintained for 5 min (Right SMG – first injection) or the syringe was withdrawn immediately after the injection (Left SMG – second injection).