If the dental implant is crooked, it should be determined whether the implant is loose and whether there is inflammation around it, and the cause of the crookedness of the implant should be clarified by a timely medical consultation. As long as the implant does not affect other roots, there is no inflammation around it, and the tilt angle is within a certain range, it can be compensated by the design of the upper dental restoration, which can be repaired with an angled abutment. If it is irreversibly skewed, it can only be re-implanted. In some patients, the angle of the implant is so large that the implant cannot be repaired, i.e. the implant fails.