Rubber barrier clip and dental auxiliary instrument

The utility model discloses a rubber barrier clamp and a dental auxiliary instrument, and the rubber barrier clamp comprises an elastic frame, a rubber baffle plate and a rubber baffle plate, the first clamping arm is arranged at one end of the elastic frame, and a first clamping groove is formed in the first clamping arm; the second clamping arm is arranged at the other end of the elastic frame, and a second clamping groove is formed in the second clamping arm; and a first limiting tenon and a second limiting tenon which are used for clamping the rubber barrier cloth are respectively arranged at the parts, connected with the first clamping arm and the second clamping arm, of the elastic frame in a back-to-back manner. When a second deciduous molar or a distal free missing molar is treated, the edge of the rubber barrier cloth can be clamped through the first limiting tenon and the second limiting tenon, so that a certain interval is formed between the distal surface of the tooth and the hole edge of the rubb