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Query: UMLS:C0001511 (Adhesion)
 5,955 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An analysis of the frequencies and locations of lumbar ventral dural adhesions was undertaken to ascertain their possible role in enhancing the low-back pain consequent to lumbar disc herniation. Data derived from a previous investigation, conducted for a different purpose, were incorporated with that of the presented study to provide a more extensive statistical base. Adhesions judged sufficient to possibly cause additional nerve disruption on separation were found in 16% of the specimens at the L3-4 level; 40% at the L4-5 level; and 36% at the L5-S1 level. Dural tissue segments, taken from the forcefully separated more firmly fixed adhesions found only at the L4-5 level, microscopically showed disruption of neurovascular bundles containing branches of the sinuvertebral nerve where they coursed between the adherent dura and the posterior longitudinal ligament. It was assumed that forced separation of adhesions during disc protrusion could add to perceived discomfort.
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PMID:Adhesions of the ventral lumbar dura. An adjunct source of discogenic pain? 214 Nov 88

The retrograde small-bowel examination is a convenient method for studying the small bowel in patients with an ileostomy. Adhesions, recurrent Crohn's disease, ileostomy dysfunction due to prestomal narrowing, and obstruction due to neoplasm are demonstrable. The technique described is faster than the peroral examination or enteroclysis, does not cause patient discomfort, and produces a rapid examination of the entire small bowel in any patient with an ileostomy.
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PMID:Retrograde examination of the small bowel in patients with an ileostomy. 394 84

Adhesion has an inseparable association with cosmetic dentistry. The ability to bond well to tooth structure has allowed the placement of countless porcelain veneers and many ceramic inlays and onlays. Improved materials and techniques have offered clinicians the ability to place these restorations with skill and reliability. The past year has seen many developments and additions to the armamentarium of the cosmetic dentist. The compiled data have been placed in different sections to facilitate the learning process. Review of the following material will familiarize the clinician with the current state of the art in the adhesive aspect of cosmetic dentistry. The ability to employ adhesive techniques has revolutionized the practice of dentistry. Clinicians have at their command materials that allow the placement of thin pieces of ceramic onto tooth structure without shattering, the routine placement of composite materials into posterior teeth, the diminishing reliance on liners and bases, and lessened postoperative discomfort with the use of dentin bonding systems. It is, as previously noted, useful to separate the analyses of adhesion to each of the substrates. Advances continue to be made in each of these areas that although not necessarily facilitating treatment ease, improve the reliability of the procedure. This review attempts to highlight the significant literature of the previous year.
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PMID:Adhesion to enamel, dentin, metal, and porcelain. 803 34

This work has dealt with the in vitro physicochemical, elastic, and microbiological properties of polymer lining materials used in dental prosthetics. Representatives of two soft polymer groups were analyzed: Vertex Soft NF, a plastified acrylic polymer, and Molloplast B, a silicon elastomer. Vertex Rapid Simplified and Triplex--two acrylic polymers routinely used at the Department of Prosthetic Dentistry were chosen as representatives of rigid acrylic material. The laminar plates of the denture are lined with elastic material to reduce wear discomfort and eliminate symptoms associated with compression of the oral mucosa by the denture. Wear-dependent deterioration in physicochemical, elastic, and microbiological properties presents as prosthetic stomatopathies due to the combined action of mechanical lesions, fungal growth, and toxicity of components of the denture, necessitating replacement of the denture. Samples used in this study were prepared at the Department of Dental Prosthetics, Pomeranian Academy of Medicine. The process of polymerization was carried out strictly as recommended by the manufacturers. The in vitro analyses were done at the Polymer Institute, Technical University of Szczecin, and the Department of Microbiology and Immunology, Pomeranian Academy of Medicine. A special system was used to reproduce conditions in the oral cavity and study their effects on the elastic liners. Samples were placed in the chamber for varying periods, depending on the type of test and material. Thermodynamic analysis was done to confirm proper polymerization and hardening. Time-dependent loss of contact between the elastic liner and rigid denture under tangential (shear) and normal (tear) stress applied to the liner-denture interface was examined. Resistance was studied using INSTRON model 4206-006 universal testing machine. Compressive changes in elastic properties of the soft materials were examined by calculating Young's modulus. Changes in viscoelastic properties of the materials depending on temperature and frequency were followed using dynamic mechanical thermal analysis (DMTA). A precision microbalance from Sartorius (+/- 0.00001 g) was used to measure time-dependent changes in weight and sorption of water. Adhesion of Candida albicans to the rigid and soft acrylic materials was determined after incubation for 3, 6 or 24 h at 37 degrees C. The study has shown that adhesive strength is much greater for acryl-acryl than acryl-silicon interface. Elastic properties of Molloplast B are very stable and superior to those of Vertex Soft NF. Time-dependent sorption of water and changes in weight have confirmed the stable nature of Molloplast B. Adhesion of Candida albicans to Vertex Soft NF was less noticeable.
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PMID:[Comparative analysis of elastic materials for lining of removable dental prosthesis in vitro]. 1460 76

Adhesion of the middle turbinate to the lateral nasal wall is a common complication of endoscopic sinus surgery. The potential sequela of middle turbinate lateralization is obstruction of the middle meatus and the maxillary, ethmoid, or frontal sinuses, which can result in recurrent sinus disease and often necessitate revision surgery. While various materials and stents have been developed to prevent middle turbinate adhesion to the lateral nasal wall, suture medialization of the middle turbinate to the nasal septum with an absorbable suture has the potential to be just as successful without causing the discomfort associated with other methods. We conducted a retrospective review of suture medializations of 157 middle turbinates in 85 patients who had undergone endoscopic sinus surgery to ascertain the incidence of postoperative middle turbinate adhesion to the lateral nasal wall. We found that adhesions developed in 17 middle turbinates (10.8%) in 15 patients; the remaining 140 middle turbinates (89.2%) were free of scarring. Thirteen of the 17 adhesions were easily divided in the outpatient clinic setting during routine postoperative endoscopic care, meaning that only 4 of the 157 turbinates (2.5%) demonstrated synechiae that remained problematic after routine care. We conclude that the development of clinically significant adhesions following suture medialization of the middle turbinate is uncommon. Suture medialization should be considered as an alternative to middle meatal packing or stenting to prevent adhesions following endoscopic sinus surgery.
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PMID:Suture medialization of the middle turbinates during endoscopic sinus surgery. 1910 28