From a SFQ stand point, I would say that your gums are part of your skin and lungs system. It is recommended that you visualize the qi as white light for these systems.
Also when working on the lungs system, and it's all connected. You open up C7 and the spine in the area of the lungs.
Then clear the lungs of any blockages (replace energy). Then work on your gums in the same manner (clear and replace with white qi).
It is also a good idea to draw energy into your lower dan tien and do a couple of circuits of the small universe before starting. This helps to open you channels and maximize your ability to direct qi.
You are perfection.
Iam2 