Sliding rod type tooth retrusion device

Abstract

The invention belongs to the medical equipment field, and relates to a sliding rod type tooth retrusion device. The device comprises brackets (8), a correction arch wire (9), an h-shaped sliding rod (10), a nickel-titanium spring (11), a micro-implant anchorage nail (12) and an elastic ring steel wire (13). The device enables the premolars to be pushed backward and the whole maxillary dentition to retrude through changing the number of continuously bundled teeth, the draft arm of the sliding rod can be positioned in a gingival position or an occlusion position, the action point of the draft arm can be ascended or descended as needed, the vertical direction of teeth is applied with affection force when the position of the action point is different, and the positions of anterior teeth are controlled through using the vertical force as needed, so the device has the functions except the tooth retrusion. The micro-implant anchorage nail and other parts are routing materials which can be easily obtained, and the sliding rod can be bent by itself, so the whole device has the advantages of low cost and low price.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a sliding bar type tooth setback device. Background technique [0002] Tooth crowding can lead to misalignment of the teeth in length, width and height, and often lead to the forward movement of the teeth resulting in maxillary or bimaxillary protrusion, often resulting in Angle's Class II malocclusion in the upper jaw and Angle's III in the lower jaw Class malocclusion, the device of the present invention is described with jaw as an example. Pushing the teeth backward can relieve the crowding of the dentition and adjust the occlusion, so that some orthodontics can obtain the gap required to improve the crowding without pulling out the teeth, achieving a more ideal purpose and maintaining the stability of the oral and jaw system, making the orthodontic process simple, fast, and light. It relieves the pain and fear of patients for tooth extraction orthodontics; and some teeth need ...

AI Technical Summary

Problems solved by technology

The effects of these devices are relatively positive, but the existing problems are: some are still large in size, have a strong sense of foreign body in the mouth, the clinical operation is more complicated, the additional force is more cumbersome during follow-up visits, and the function is realized exclusively, and the setback of the dentition and the setback of the molars requires 2 or more devices

Images