Ulcer constitutes loss of tissue involving the whole epithelium, that may affect connective tissue. It has typical features: central crater, relieved edges, yellow area. This primary lesion may be a sign of various diseases of the mouth, whose diagnosis might be quite challenging, because may range over many conditions like traumatic lesions, inflammatory diseases, infections, cancer, autoimmune diseases, topical application of drugs. To find a diagnostic classification it's important to recognize ulcers in acute or chronic, multiple or solitary, symptomatic or not. The authors report the case of a 46 year old man who presented at Martini hospital in Turin with the main complaint of the presence for 5 months of a asymptomatic exophytic ulcerated lesion of the oral mucosa, treated by the authors with complete excision and placement of PRF and medicated gauze.

A 75-year-old woman was referred to the department of oral and maxillofacial surgery 10 days after the extraction of a symptomatic mandibular left second molar tooth, lamenting the presence of an esophytic neoformation to the postextraction socket showing a diameter greater than 2.5 cm, which had occasionally encountered bleeding. The practice of exodontia occasionally results in complications from time to time. It is imperative for the clinician to recognize impending complications and manage them accordingly. The authors report this clinical case, showing the main complications after teeth extractions and the differential diagnosis of their clinical case.