Whether or not an exposed wisdom tooth is good to be extracted depends on the location and direction of its eruption, and it is recommended to go to the hospital and be examined by a doctor to determine this.
If the eruption is on the maxillofacial surface, the wisdom tooth is usually better to be extracted. If the exposure is on the distal mesial surface, i.e., the wisdom tooth is blocked to the proximal mesial surface or horizontally, this kind of wisdom tooth is not good to be extracted. If the wisdom tooth is on the proximal mesial surface, i.e., the wisdom tooth is blocked towards the distal mesial surface, this type of wisdom tooth is also not good to be extracted.
If the wisdom teeth are well exposed, it is necessary to go to the hospital and take a surface tomogram of the oral cavity to clearly see the direction of growth of the erupted wisdom teeth. You can also see the relationship between the root tip of the wisdom tooth and the inferior alveolar nerve canal, the number of roots, the direction, the shape and thickness of the wisdom tooth.
Wisdom tooth extraction should choose a regular medical institution.