<unk>  Temporomandibular joint disorder Swelling and tenderness of operculum and around wisdom tooth Dull, aching pain around face, around ear, angle of jaw (masseter), and inside mouth behind upper wisdom tooth (lateral pterygoid) Bad taste Headaches Disturbed sleep Does not disturb sleep Poorly responsive to analgesics Responds to analgesics Possibly limited mouth opening (trismus) Possibly trismus, joint noises (e.g. clicking upon opening) and deviation of mandible The presence of dental plaque or infection beneath an inflamed operculum without other obvious causes of pain will often lead to a<unk>  diagnosis; therefore, elimination of other pain and inflammation causes is essential. For pericoronal infection to occur, the affected tooth must be exposed to the oral cavity, which can be difficult to detect if the exposure is hidden beneath thick tissue or behind an adjacent tooth. Severe swelling and restricted mouth opening may limit examination of the area. Radiographs can be used to rule out other causes of pain and to properly assess the prognosis for further eruption of the affected tooth. Sometimes a "migratory abscess" of the buccal sulcus occurs with pericoronal infection, where pus from the lower third molar region tracks forwards in the submucosal plane, between the body of the mandible and the attachment of the buccinator muscle to the mandible. In this scenario, pus may spontaneously discharge via an intra-oral sinus located over the mandibular second or first molar, or even the second premolar. Similar causes of pain, some which can occur in conjunction with<unk>  may include: *Dental caries (tooth decay) of the wisdom tooth and of the distal surface of the second molar is common. Tooth decay may cause pulpitis (toothache) to occur in the same region, and this may cause pulp necrosis and the formation of a periapical abscess associated with either tooth. *Food can also become stuck between the wisdom tooth and the tooth in front, termed food packing, and cause acute inflammation in a periodontal pocket when the bacteria become trapped. A periodontal abscess may even form by this mechanism. *Pain associated with temporomandibular joint disorder and myofascial pain also often occurs in the same region as<unk> . J are easily missed diagnoses in the presence of mild and chronic<unk> , and the latter may not be contributing greatly to the individual's pain (see table). It is rare for<unk>  to occur in association with both lower third molars at the same time, despite the fact that many young people will have both lower wisdom teeth partially erupted. Therefore, bilateral pain from the lower third molar region is unlikely to be caused by<unk>  and more likely to be muscular in origin.
Pericoronitis
Hydrothorax
Tracheitis
Tonsillitis
Pulpitis
Mediastinitis
Epiglottitis
Tympanites