[Intra-oral Perineurioma, a case report]. / Perineurioma: een zeldzame intraorale wekedelentumor.

A 48 year old woman was referred by her general practitioner to an oral and maxillofacial surgeon because of an asymptomatic, slow growing intra-oral tumor since three years. There were no sensory and motor symptoms. A well-defined tumor of 5 cm in diameter was located in the right cheek between the zygomaticus arch and the labial commissure. The skin and the intra-oral mucosa were intact without any change in colour or texture. The MRI showed a solitary mass with benign characteristics. A transoral radical excisional biopsy was performed under general anesthesia. Histopathological examination revealed a rare soft tissue perineurioma tumor.

[Sialendoscopy: endoscopic approach to obstructive salivary gland disease]. / Sialendoscopie: endoscopische benadering van obstructive speekselklieraandoeningen.

Sialendoscopy: endoscopic approach to obstructive salivary gland defects Obstructive defects of the parotid and the submandibular gland often present themselves clinically by mealtime-related swelling of the affected salivary gland, the so-called 'mealtime syndrome'. Salivary ductal obstruction of the parotid and submandibular gland is predominantly caused by the presence of a salivary stone, a mucous plug, or by ductal stenosis. Until recently, diagnostic and treatment options for these obstructive salivary gland defects were restricted. Surgical removal of the affected salivary gland was often the treatment of choice. By applying sialendoscopy, a minimally invasive, semi rigid optical technique, it is possible to diagnose and treat obstructions which are found in the salivary ductal system. In many cases, therefore, the surgical removal of the salivary gland becomes unnecessary.

[An endodontic ultrasonic system for apical endodontic surgery]. / Ultrasone wortelpuntpreparatie bij een chirurgische apicale endodontische behandeling.

Apical endodontic surgery is applied frequently following a failed conventional endodontic treatment. The apical preparation can be carried out conventionally using a round bur or using an endodontic ultrasonic system. The purpose of this study was to compare the outcome of the 2 treatment options by a randomized prospective clinical study. Patients (n=399) were at random allocated to treatment using a conventional round bur or using an ultrasonic system (P-max Newtron) according to a for the rest similar treatment protocol. One year post treatment, the treatment outcomes were determined by 2 oral and maxillofacial surgeons, blinded for the treatment option. Adequate follow-up data were obtained from 290 patients. The overall success rate was 71% in the patients treated conventionally and 81% in the patients treated using the ultrasonic system. In molar teeth, the difference in success rate was statistically significant.

[Behçet's syndrome]. / Syndroom van Behçet.

A dentist referred a 35-year-old woman to the department of oral and maxillofacial surgery because of recurrent aphtous-like changes of the oral mucosa and persisting pain. She also experienced similar complaints about her eyes and genitals. This combination of symptoms was suspect for Behçet's disease.

[Diplopia following local anesthesia]. / Dubbelzien na lokale anesthesie.

In dentistry diplopia following injection of a local anaesthetic is a rare complication. A case is presented in which a patient developed a transient paralysis of a lateral rectus muscle. The literature concerning orbital involvement of local anaesthetics is discussed. The most likely explanation for the occurrence of these adverse effects is intra-vascular injection in the superior or inferior alveolar artery with backflow into the vessels supplying the orbit.

CT diagnosis of synovial chondromatosis of the temporomandibular joint.

Synovial chondromatosis of the temporomandibular joint (TMJ) is a very rare condition. It is characterised by the presence of loose bodies in the joint space. Clinical signs, histopathological findings and radiography play an important role in the diagnostic process. Conventional X-rays have shown to be of limited value, for they fail to depict the intra-articular loose bodies in a significant amount of cases. Axial as well as coronal computer tomography (CT) is extremely useful in detecting loose bodies in the temporomandibular joint (TMJ). In this report we present and discuss a further case, and the use of CT in the diagnosis of TMJ-synovial chondromatosis is illustrated.