Abstract: The combination cheek retractor/mouth mirror attachment for a dental tool is a single unit that has three main portions. The attachment includes a main body portion (cheek retractor), a mirror portion, and a connector portion for attaching a dental tool, such as a probe or dental explorer. The main body portion is an arcuate body defining a border or frame having parallel arcuate upper and lower arms, the ends of the arms being joined by short, parallel legs, the corners being rounded. The mirror portion is an arcuate, single-face plane mirror fixed within the frame of the cheek retractor by gluing, welding, or the like. The connector portion is a split ring annular collar or band extending from the cheek retractor and having parallel tabs with aligned holes receiving a fastener for clamping the attachment to the neck of a dental tool, such as an explorer or probe.