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Purpose: The best method for reconstructing the fractured orbital floor remains controversial. This article evaluates the usefulness of dehydrated human dura mater for orbital floor reconstruction after facial trauma., Patients and Methods: A retrospective analysis of 55 patients who had undergone surgical repair of orbital fractures was performed. The dura mater was used when the disruption was less than 2 cm in diameter. Fractures were divided into 3 types: type I (blow-out), type II (orbitozygomatic fracture), and type III (midfacial fracture). The patients were followed-up at least 1 year after surgery, and the cosmetic and functional results were reviewed., Results: A 7% complication rate was noted. No implant migration or infection resulted. One year postsurgery, all patients showed a complete resolution of their diplopia., Conclusion: The safety and biocompatibility of dehydrated human dura mater support its use in orbital defects less than 2 cm in diameter.

Squamous cell carcinoma of the head and neck has been regarded as a disease affecting the elderly. Several etiologic factors have been demonstrated, such as tobacco and alcohol use and premalignant lesions, whereas others have been suspected, such as genetic or immunodeficiency disorders. Recently, some reports have addressed a tendency toward an increase in the incidence of squamous cell carcinoma in young patients. In recent years we have observed an increase in the number of squamous cell carcinomas in patients younger than 40 years. Therefore we retrospectively reviewed our clinical experience of cancer in those patients younger than 40 years. After screening 505 clinical charts, 294 patients met the criteria to enter our study. Twenty-four (8.2%) patients were aged 40 years or younger. Data collected included the history of premalignant lesions, etiologic factors, TNM stages, treatment modalities, and histopathologic issues. Statistical analysis with Kaplan-Meier survival rates and log-rank tests between various variables were applied. A significant association in survival was observed between patterns of recurrence (p = 0.031) and presence of neoplastic cells 5 mm or closer to the specimen margin. On the other hand, a lack of association was assessed in carcinogenic-related habits and in premalignant lesions. Likewise, although men showed a slightly worse prognosis than women, statistically no significant differences were found (p = 0.27).

Intravascular Papillary Endothelial Hyperplasia (IVPEH) is a benign process, even uncommon. It was first described by Masson in 1923 under the name "Hemangioendotheliom vegetant intravascular". We present a case of IVPEH located in the masseter muscle. The treatment for this lesion was surgical excision. The histological examination is very important in order to separate this lesion from angiosarcoma.

The facial palsy produced by a parotid tumour, could be misdiagnosed due to the absence of a palpable mass or other any signs in the computerized axial tomography or nuclear magnetic resonance. However there are data derived from the facial anatomy, course and clinical characteristics from the palsy that could make us thinking on the presence of a parotid tumour. The objective of this article is to present this characteristics, together with a serial of clinic cases which coursed in the beginning with a facial palsy and had problems in their diagnostic. It's also remarked the significance of the presence or not of perineural infiltration to the parotid tumours that will condition not only the prognosis but also the clinic course.

In this article a review is done about the diagnostic and therapeutical process that must be followed in case of an accidental ingestion or aspiration of a foreign body in the odontostomatologic practice.