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At least 397 records · Page 22Linked to original sources
PubMed2006

The use of silicon elastomer in maxillofacial rehabilitation as a substitute for or in conjunction with resins.

Maxillofacial prosthetic rehabilitation aims to restore anatomic function when serious tissue defects are present, as a result of congenital factors, trauma, or surgery. The aims are both aesthetic and functional, and results are obtained using devices that contain, reconstruct, and fill. This study introduces a technique using methods and materials that are acceptable to the patient in that they satisfy chewing, phonetic, and aesthetic functions, while respecting bone structure and restoring function to the soft tissues without causing trauma to them. Our techniques do not use innovative materials, but ones that are structurally different and that, until now, have not been connected with attachment systems. Acrylic resin, acetylic resin, and silicon are used, each in such a way as to take maximum advantage of each material's characteristics and thus give the best results.

Acrylic Resins↗
PubMed1978

Carcinomas of intraoral salivary glands.

Of 44 intraoral salivary gland tumours received by the Department of Pathology, Dental Faculty, University of Oslo over the last 20 years, 21 (approx. 48%) were classified as carcinomas. Of these, the adenocarcinomas constituted the largest group, but because some of them bore a certain likeness to adenoid cystic carcinomas and to mucoepidermoid tumours, we believe that transitions exist between these groups of neoplasms. The material is thought to reflect the daily practice of oral surgeons and general dental practitioners, and we think it important to emphasize that approximately every second tumour in this series was malignant.

Adenocarcinoma↗
PubMed2004

Use of bar-clip attachments to enhance the retention of a maxillofacial prosthetic obturator: a clinical report.

Precision attachments are commonly used in prosthetic dentistry but are still questioned in maxillofacial prosthetics. The aesthetic enhancement and functional rigidity provided by attachments are favourable features to many challenging clinical situations such as class-III defect (Aramany's maxillectomy classification). Surgical reconstruction is the standard treatment for this type of defect repair. However, owing to the need for dental rehabilitation and patient reserve, prosthetic rehabilitation was the modality chosen in this clinical case. The use of bar attachments is described in this paper as providing increased stability and retention of the prosthesis, and improved obturator water and airtightness.

Dental Instruments↗
PubMed1976

Diseases of the oral mucosa.

Lesions of the oral mucosa are numerous. The purpose of this article is to review the more common and most serious of them, to explore some basic-science aspects of their development and to discuss prevention and treatment.

Adult↗
PubMedDate not supplied

Excision of oral squamous cell carcinoma in a horse.

A large oral squamous cell carcinoma in a 27-year-old Arabian stallion was removed by partial excision of the incisive bone. There was no gross evidence of recurrence or metastasis 5 months later.

Animals↗
PubMed1986

Chondromyxoid fibroma of the jaws: a clinicopathological study.

Chondromyxoid fibroma is a benign skeletal tumor which rarely affects the jaws. Only 10 cases have been found in the literature, all of them located in the mandible. In the present articles, 2 additional cases are described, one of them being the first reported case located in the maxilla. Up-to-date clinical and pathological data of 2 reported cases and a review of the literature are presented.

Adult↗
PubMed1988

Kaposi's sarcoma in AIDS: basement membrane and endothelial cell markers in late-stage lesions.

Early-stage lesions of Kaposi's sarcoma (KS) are composed of single-layered, highly flattened cells lining collagen bundles, whereas late-stage lesions contain densely packed, spindle-shaped cells. We examined the progression of KS lesions in oral mucosa and lymph nodes from patients with AIDS, using antibodies specific for blood vascular endothelial cells (Factor VIII-related antigen) and their basement membrane (Type IV collagen and laminin). In addition, the plant lectin Ulex europaeus, which selectively stains blood vessels, was also used. In early-stage KS lesions, fibronectin, laminin and Type IV collagen were co-distributed at the interface between KS cells and collagen bundles; Factor VIII-related antigen and Ulex europaeus lectin staining was present in vascular channels and in the KS cells. However, in late-stage lesions, few if any KS cells stained with antibody to Factor VIII-associated antigen, although endothelial cells lining blood vessels were positive. Strong staining for laminin and Type IV collagen was present in a pericellular pattern throughout the nodular late-stage lesions. Since lymphatic capillary endothelium does not produce basement-membrane-specific macromolecules, these results support the conclusion that KS cells are related to blood vascular endothelium but eventually lose certain endothelium-specific markers as the cells are transformed into the spindle-shaped cell type.

Acquired Immunodeficiency Syndrome↗
PubMedDate not supplied

Facial fibrosarcoma in two cows.

Fibrosarcoma is a common tumor affecting bone, but is uncommon in cows. Reported here are two bovine cases of facial fibrosarcoma that were very invasive.

Animals↗
PubMedDate not supplied

Magnetic field modification of electron-beam dose distributions in inhomogeneous media.

Modern curative radiotherapy requires higher doses to the tumor volume and, necessarily, minimal doses to the surrounding normal tissues. Attempts to use heavy charged particles to achieve such optimization are currently under investigation in many centers. Our data indicate that a static, superimposed magnetic field on a clinical electron-therapy beam also offers the capability of some "tailoring" of isodose distributions. Furthermore, a variable, superimposed magnetic field minimizes those tissue-generated dose heterogeneities which are inherent with all charged-particle beams. We suggest that magnetically modified, clinically available electron beams also offer a practical and less expensive means of achieving tailored, heterogeneity-corrected isodose distributions.

Electrons↗