A wisdom tooth is one of the four third molars located at the back of the mouth. These teeth typically emerge between the ages of 17 and 25, a time often referred to as the "age of wisdom." They can help with chewing, but many people have them removed due to lack of space or potential dental issues. Wisdom teeth can become impacted, meaning they do not fully emerge through the gums. This can lead to pain, infection, or damage to nearby teeth. Dental professionals, such as dentists, often recommend removal if problems arise, making it a common procedure in oral health care.