Some of the larger hospitals are more meticulous in their subspecialties, and often have multiple specialties within dentistry, so it can easily lead to confusion for patients. If there is redness and swelling around the wisdom tooth with typical symptoms of pericoronitis and incomplete eruption of the tooth, you can go directly to oral surgery for an examination to see if it needs to be extracted.
Some hospitals will subdivide the oral surgery department into salivary gland, joint, alveolar and trigeminal specialties, and you should register for the alveolar surgery specialty at this time. If the tooth erupts well, has only minor decay and is not spontaneously painful and only experiences discomfort on hot or cold stimulation, you can also visit the oral medicine department and be treated in the endodontic specialty.