Tooth dislocation

1. Sudden external injury history. 2. Tooth dislocation, tooth displacement, tooth extension, tilt or displacement can be seen, loose II0-III0, gingival crevicular bleeding may occur, crowns are not broken and defect, temperature test response is different, tooth displacement can be Accompanied by alveolar process fracture. 3. Embedded tooth dislocation: The clinical crown of the affected tooth is shortened or disappeared, which may be accompanied by displacement, twist or anti-jaw relationship, bleeding from the gingival sulcus, palpitation (+++), and alveolar process fracture.