Tooth gap retainer

A tooth gap retainer is provided with two fixing parts matched with the surfaces of corresponding supporting teeth respectively and a supporting column, and the two ends of the supporting column are fixedly welded to the two fixing parts respectively; the fixing part is of a non-closed structure. The two fixing parts are respectively defined as a first fixing part and a second fixing part; when the tooth gap retainer is used, the direction of central incisor teeth is defined as the front, the direction of molars is defined as the rear, and the first fixing part is located behind the second fixing part. The gap between the tooth gap retainer and the supporting teeth is small, so that the stability of the tooth gap retainer and the supporting teeth is improved when the tooth gap retainer is used, and dirt is not easy to hide. Meanwhile, the tooth gap retainer does not need to increase the distance between the supporting teeth and the adjacent teeth, so that the assembly difficulty is simplified, and the accepta