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OBJECTIVE Dental osteotomy, the removal of an impacted, ankylosed, or severely destroyed tooth requiring an osteotomy, is more invasive than other minor dental procedures and therefore also has a higher bleeding risk. A considerable number of patients under antiplatelet therapy interrupt their therapy perioperatively, which, however, increases the risk of(More)
BACKGROUND Hybrid tumours of the salivary glands are rare neoplasms. They are composed of at least two different tumour entities located in the same topographic area and account for only 0.1% of all salivary gland tumours. The most common component is an adenoid cystic carcinoma. There are several possible forms of hybrid tumours, which are most commonly(More)
PURPOSE Microvascular free tissue transfer allows major ablative defects following oncologic surgical and traumatic reasons to be reliably reconstructed in the head and neck region. A retrospective analysis of the microvascular flap procedures which were performed within one year in a high volume training centre was performed. PATIENTS AND METHODS The(More)
OBJECTIVES To study immunohistochemical expression of the epithelial growth factor receptor (EGFR) in oral carcinomas and the head and neck region to examine possible associations with various features of the tumors and survival of the patients. MATERIALS AND METHODS Sections were made from two tissue arrays composed of 206 oral squamous cell carcinomas(More)
PURPOSE The improvement of the ischaemic tolerance of myocutaneous flaps is of clinical importance and hence the subject of numerous investigations. METHODS In an attempt to increase the ischaemic tolerance, 20 myocutaneous flaps (rectus abdominis muscle) in pigs were elevated and perfused with various, established solutions prior to the onset of(More)
The purpose of this study was to assess the risk of postoperative bleeding complications after oral procedures performed under continued mono or dual anticoagulation therapy with rivaroxaban (and aspirin). This retrospective single-center observational study included 52 oral procedures performed under continued oral anticoagulant therapy with rivaroxaban(More)
OBJECTIVES The aim of this retrospective study was to assess the incidence of postoperative hemorrhage in patients treated with coumarins without interruption of the anticoagulant treatment undergoing oral surgical procedures, mostly osteotomies for tooth removal, when compared with patients who had never been anticoagulated. MATERIAL AND METHODS Six(More)
OBJECT To determine the incidence of postoperative bleeding for oral osteotomy carried out under continued monoantiplatelet therapy with clopidogrel and dual therapy with clopidogrel/aspirin. Design. Retrospective single center observatory study of two study groups and a control group. METHODS A total of 64 and 60 oral osteotomy procedures carried out(More)
The purpose of this retrospective study was to examine the possible effect of immediate bony microvascular free flap reconstruction of mandibular defects after radical tumor resection of oral squamous cell carcinoma (OSCC) on the rate of local relapse. Our own data regarding recurrence rates for 1-step immediate reconstruction were compared to the published(More)