There is no need to be overly nervous about having an extra wisdom tooth in your lower dentition, and your doctor can choose to keep it temporarily or remove it according to the situation. 1. Temporary retention, the lower bed of an extra wisdom tooth can first observe the wisdom tooth situation, if the wisdom tooth situation is not serious, does not affect personal life, generally do not need to be overly nervous, you can temporarily retain the wisdom tooth. Usually need to pay attention to personal oral hygiene, keep clean, to avoid the wisdom teeth pericoronitis and other diseases. 2. Wisdom teeth extraction, if the wisdom teeth erupt abnormally, resulting in wisdom teeth obstruction or wisdom teeth pericoronitis and other problems, affecting the normal life, you need to consult a doctor in a timely manner will be wisdom teeth extraction. Normally, you need to eat more light and nutritious food, and it is best not to stimulate the teeth often. If discomfort occurs, seek medical attention.