Two years after the extraction of wisdom teeth, the tilting of wisdom teeth may be caused by the loss of resistance of neighboring teeth, alveolar bone resorption, chewing pressure and other factors. 1. Wisdom teeth lose the resistance of neighboring teeth: If the second molar in front of the wisdom tooth is extracted, the wisdom tooth will lose the normal physiological resistance of the neighboring teeth as well as its supportive role, and after two years, the wisdom tooth may be tilted towards the missing tooth, and it is recommended that the wisdom tooth be extracted as soon as possible to repair the missing tooth. 2. Alveolar bone resorption: The alveolar bone will be reorganized and reconstructed for a period of time after extraction, and resorption occurs at a rate of 0.5-1mm per year. Therefore, the alveolar bone will be resorbed and reconstructed after two years of extraction, which will lead to the tilting of the wisdom teeth. 3. Chewing pressure: in the process of daily chewing of food due to the existence of chewing pressure, the teeth will be subjected to normal physiological movement, but after the removal of the second molar, the wisdom teeth due to the loss of neighboring teeth resistance, chewing will be subjected to the phenomenon of uneven force, which will lead to tilting and displacement of the wisdom teeth. Two years after the extraction of wisdom teeth and tilted phenomenon, it is recommended that the best timely to the hospital stomatology department to take pictures for examination and analysis, it is best to repair the missing teeth as soon as possible, and at the same time, consider the removal of wisdom teeth.