A device, method, and system are provided for aiding in dental treatments. Such devices may include or consist of a dental gum guard. The dental gum guard preferably includes an at least partially arch-shaped flexible drape designed to conform substantially to a gum ridge anatomy. Preferably the dental gum guard has a plurality of holes, such as pre-configured cut-out holes (e.g., of varying diameter). The holes may allow for customized insertion over the teeth. The dental gum guard preferably provides a dry field.