has a history of systemic inducement or recurrent attack
examination shows swelling of impacted teeth and molar posterior area, pus secretion in the bag around the crown.
has obvious systemic symptoms, often swelling and tenderness of the submandibular lymph nodes.
If not treated properly in time, it can develop into Pericoronal abscess, maxillofacial cellulitis and even osteomyelitis
if the inflammation continues to expand, the following complications can occur For example, it spreads to the subperiosteal to form subperiosteal abscess, or the pus flows forward along the lateral bone surface of the mandible to form abscess or gingival fistula on the buccal side of the first or second mandibular molar; It can also expand outwards to form subcutaneous abscess of buccal or skin fistula through skin.
patients with buccal skin fistula can be seen clinically, and the possibility of pericoronitis should be considered to prevent misdiagnosis.
patients with severe pericoronitis can also be complicated with pericoronitis, osteomyelitis of mandible and even systemic infection.