According to the present invention, an oral retractor for dental treatment includes: a labyrinth seating part (100) which has a semicircular shape and has a pair of body parts (110A) having an upper protrusion part (111A) and a lower protrusion part (113A) protruding outward from a middle part (112A); and an earring part (200) which has an earring part coupling part (210) fastened to a body part coupling part (120) provided on one side of the body part at one end, a curved part (230) formed round to surround an ear at the other end, and an elastic part (220) at a middle part. When a dentist (therapist) performs dental treatment, one of his/her hands can be free.
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