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Biomedical subjects

S Taicher

Publications and source records attributed to S Taicher.

At least 19 recordsLinked to original sources
PubMed1994

Location of the mandibular foramen in panoramic radiographs.

The reliability of two panoramic x-ray machines (Philips Orthoralix SD Ceph and Gendex Panelipse II) for determination of the location of the mandibular foramen was studied with the use of human dry mandibles. A significant correlation was found between the location of the mandibular foramen in the radiograph and the narrowest anteroposterior dimension of the ramus. A linear logistic regression equation was developed that could predict the actual location of the mandibular foramen from the radiographs. This finding will improve treatment planning of surgical splitting or fracturing of the ramus in cases that require orthognathic surgery provided the surgeon is aware of which panoramic machine was used. The Philips Orthoralix SD was found to be more reliable for this purpose than the Panelipse II (R2 = 0.94 and R2 = 0.87, respectively, in the vertical dimension and R2 = 0.87 and R2 = 0.75, respectively, in the horizontal dimension.

Humans↗
PubMed1993

Radiologic features of desmoplastic variant of ameloblastoma.

Desmoplastic variant of ameloblastoma is a newly described variant characterized by unique histologic and radiographic features. This study reviews and analyzes the clinical and radiographic features of 15 cases of desmoplastic variant of ameloblastoma (14 cases from the literature and one case from our files). Desmoplastic variant of ameloblastoma shows a predilection for the maxilla and has a tendency to occur in the anterior region of the mandible and maxilla. Radiographically, almost all desmoplastic variant of ameloblastomas exhibit a mixed radiolucent-radiopaque appearance. Most show poorly defined or diffused borders and are mistakenly diagnosed as fibro-osseous lesions.

Adult↗
PubMed1993

Recovery of the infraorbital nerve after zygomatic complex fractures: a preliminary study of different treatment methods.

The infraorbital nerve (ION) is often involved in trauma to the zygomatic complex (ZC), resulting in sensory disturbance of the area innervated by it. The purpose of the study was to compare the incidence of persistent sensory disturbance after recovery from isolated simple fractures of the ZC, with four treatment methods: 1) closed reduction via subcutaneous approach without fixation; 2) open reduction via subcutaneous approach without fixation; 3) open reduction via oroantral approach and support of the complex by an intraantral Foley catheter; and 4) open reduction via Gillies approach with fixation of the frontozygomatic (FZ) fracture with wire osteosynthesis, and open reduction via Gillies approach with fixation of the FZ fracture with miniplate osteosynthesis. Analysis revealed that patients treated with miniplate osteosynthesis exhibited a trend for higher recovery rate of the (ION) than with the other three methods. No significant differences were found among the other three methods.

Bone Plates↗
PubMed1993

Life-threatening bleeding following maxillofacial trauma.

Life-threatening bleeding associated with facial trauma is considered rare, and most references on this subject do not recommend a precise treatment plan. The purpose of the present study is to review the origin of bleeding and various treatment methods, and to formulate a plan of management for these patients, emphasizing the role of the maxillofacial surgeon in the immediate intervention to control the bleeding. 222 patients with midface fractures were treated between 1985 to 1990. 10 of them had severe and life-threatening bleeding on admission. Bleeding was controlled by nasal packing (9 patients) combined with temporary fracture reduction (7 patients).

Facial Bones↗
PubMed1992

[Management of fractures of the face].

During 1985-1989, 371 patients with fractures of the lower two thirds of the facial skeleton were treated. Mean age was 31.2 years and there was a male prevalence of 78%. An equal distribution was found between fractures of the middle and lower third of the face. Our clinical experience has shown that it is preferable to start treatment as early as possible, using an open approach for reduction of fractures and rigid methods of fixation. Rigid internal fixation enables the patient to keep his jaws functional postoperatively and prevents the need for maxillomandibular fixation for 6 weeks. 6-month follow-up showed a low incidence of bone infection (1.5%), although most fractures were exposed to contaminated spaces. The major complication of treatment was impaired sensation of the lips and infraorbital regions (23%). In a follow-up of up to 1 year, the occurrence of this complication decreased to 7%.

Adult↗
PubMed1990

Dental extraction for patients on oral anticoagulant therapy.

Dental extraction in patients receiving long-term oral anticoagulant therapy is a controversial issue. Continuation of anticoagulation exposes the patient to serious hemorrhage, whereas cessation of therapy increases the risk of thromboembolism. Forty patients treated by coumarin underwent 63 tooth extractions, without a change in the therapeutic protocol of anticoagulation. The biologic adhesive Beriplast was used successfully to achieve local hemostasis at the site of the surgical wound. Apart from one patient who had mild oozing, there were no incidences of postsurgical hemorrhage.

Administration, Oral↗
PubMed1989

Prosthetic rehabilitation of mandibulectomy and glossectomy patients.

The prosthodontic prognosis in patients with lateral discontinuity defects of the mandible is dependent on a number of complex factors. In some patients only esthetics can be improved, whereas in others mastication and speech improvement can be achieved. Two patients who had undergone the same surgical interventions but presented with different problems are described. The first patient had difficulty with mastication and mandibular movements, which was resolved by building a ramp on a maxillary prosthesis. The second patient had severe speech and swallowing problems, which were corrected with an acrylic, hollow speech prosthesis. In both patients the end result was satisfactory.

Adult↗
PubMed1986

Polydimethylsiloxane button obturator for hard palate clefts.

A polydimethylsiloxane obturator for hard palate clefts is described. Because it is soft, the obturator uses anatomic undercuts of the nasal cavity for maximum retention and stability. The obturator covers only a small part of the palate. The material is nontoxic and noncarcinogenic.

Cleft Palate↗
PubMed1986

Prosthetic repair of meatal stenosis.

A technique for fabrication of an acrylic resin stent that can enhance the success of surgery for meatal stenosis has been described. A temporary stent can be prepared in the operating room and used until the definitive stent is prepared in the laboratory. Both stents are easy to construct and manage.

Adolescent↗
PubMed1985

Clinical uses of prosthetic devices in brachiotherapy for oral cavity tumors.

Three different acrylic resin intraoral stents used for radiotherapy are described. They serve multiple functions in the treatment of tumors of the oral cavity. They are prepared individually and are necessary for accurate treatment planning and in order to minimize the exposure of hospital personnel to radiation.

Brachytherapy↗