The wisdom tooth is another name for any one of four third molars found in the permanent dentition (adult teeth). These teeth are the last or most posterior teeth in the dental arch. Although most people have wisdom teeth, it is possible for some or all of the third molars to never develop. It is also possible for a person to have more than four wisdom teeth. In many individuals, the wisdom teeth aren’t visible because they have become impacted (not normally erupted through the gums) under the gingival tissue.
