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The typical Stafne's cavity, located on the posterior portion of the mandible, is a relatively uncommon entity. However, when the defect is located in the anterior region of the mandible, it is quite rare, having thus far been described in only 36 cases in the scientific literature. Most of these defects appear in the fifth and sixth decades of life, are localized to the area of the canines and premolars, and have a predilection for males. The inferior dental canal, one of the anatomical-radiographic landmarks that aid in the diagnosis of Stafne's cavity in the posterior region, is rarely present anterior the mental foramen. For this reason, because of its more variable radiographic appearance compared to the posterior defect, its tendency to be superimposed over the apices of the teeth, and the rarity of its localisation to the anterior mandible, it is much more difficult to establish a definitive diagnosis of a Stafne's cavity in this location. It is therefore more likely that a diagnostic error can occur, especially early on. We present a new case in a 68-year-old male in which the diagnosis was serendipitous, and we review in particular the aetiology and pathogenesis, clinical aspects, and differential diagnoses for this condition.

Fracture of the left maxillary tuberosity during surgical extraction of multiple teeth, involving the maxillary sinus and pterigomaxillary fossa in a male patient with classic hemophilia due to factor VIII deficiency, is reported. The subject was treated by a private dentist and afterwards admitted at the Oral and Maxillofacial Surgery unit of the "20 de Noviembre" Hospital, ISSSTE, where extraction was completed and the fracture detected at surgery. The patient was then referred to Hematology and substitute therapy of factor VIII for two weeks was prescribed but, eventually, persistent bleeding led to suturing the external carotid.

Among the systemic hemorrhagic we find Von Willebrand's, the most prevalent coagulation related illness. It may be defined as a qualitative platelet abnormality which in most cases is transmitted as a dominant mendelian trait. Clinically there is prolonged bleeding time, epistaxis, gingival hemorrhage and increased bleeding after surgery or dental extractions. The purpose of this project was to test the effectivity of a local element such as GRF glue as the only treatment for these patients. With the purpose to avoid the use of a substitute therapy, mainly taking into consideration all the problems derived from the AIDS virus. It was concluded that GRF glue was an excellent local treatment for Von Willebrand's carries with factor VIII over 10%. Systemic therapy must be instituted in patients under the 10% circulating factor VIII.