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an abscess confined to the gingival soft tissue.
gumboil/gum·boil/ (gum´boil) parulis.
A small boil or abscess on the gum, often resulting from tooth decay.
Etymology: AS, goma gum + byl
an abscess of the gingiva and periosteum resulting from injury, infection, or dental decay. The gum is characteristically red, swollen, and tender. The abscess may rupture spontaneously, or it may require incision. Treatment may include antibiotics and hot mouthwashes. Also called parulis.