Search results for "CIENCIAS DE LA SALUD"
showing 10 items of 2623 documents
Elección del implante intraarticular en el tratamiento de las lesiones del ligamento cruzado anterior
1992
Los autores hacen una revisión de los diferentes implantes usados para la sustitución intraarticular del ligamento cruzado anterior (LCA). Se analizan los injertos autólogos, los materiales sintéticos y los aloinjertos tendinosos. Nos encontramos ante un tema sujeto a controversia, aunque la tendencia actual es el uso de autoinjertos de hueso -tendón rotuliano- hueso. No obstante, ninguno de los tejidos sustitutivos puede remedar por completo la anatomía del LCA original. The authors review the different implants used for the intra-articular substitution of the anterior cruciate ligament (ACL), analyzing the autologous grafts, synthetic materials and tendinous allografts. We find ourselves …
Cemented and screw-retained implant-supported single-tooth restorations in the molar mandibular region: A retrospective comparison study after an obs…
2015
Objectives: The aim of this study was to evaluate the survival and compare the appearance of different mechanical and biological complications, in screw-retained and cemented-retained single-tooth implant-supported restorations localized in the molar mandibular region, over a period of 1 to 4 years. Material and Methods: A retrospective study was carried out with a total of eighty implant-supported restorations, which were placed in eighty patients for prosthetic rehabilitation of a mandibular molar. Forty patients were rehabilitated with a cemented-retained restoration and the other forty with a screw-retained restoration. The presence of the following complications was recorded for both t…
Small cell osteosarcoma of mandible: a rare case report and review of literature.
2010
Osteosarcoma is the most common primary malignant tumor of bone but only 5% of these tumours occur in the jaws. Of all the varieties of osteosarcoma, the juxtacortical type is rare and comprises only less than 4% of all osteosarcomas. Juxtacortical osteosarcoma is further subdivided into parosteal (low grade) and periosteal (high grade). Osteosarcomas can be categorized histologically mainly into chondroblastic, osteoblastic, fibroblastic and numerous others. One of the rare histological variant is small cell osteosarcoma which consists of sheets of round cells that produce an osteoid matrix. The aim of this article is to present a rare case of periosteal osteosarcoma of mandible which on h…
Effect of nonsurgical periodontal treatment in patients with periodontitis and rheumatoid arthritis: a systematic review
2016
Background: Periodontitis has been regarded as a potential risk factor for rheumatoid arthritis (RA). A systematic review is made to determine whether nonsurgical periodontal treatment in patients with RA offers benefits in terms of the clinical activity and inflammatory markers of the disease. Material and Methods: A search was made of the Medline-PubMed, Cochrane, Embase and Scopus databases to identify studies on the relationship between the two disease processes, and especially on the effects of nonsurgical treatment in patients of this kind. The search was based on the following keywords: rheumatoid arthritis AND periodontitis (MeSH), rheumatoid arthritis AND periodontal treatment . Re…
Condromatosis sinovial de la articulación temporomandibular: Estudio clínico, radiológico e histológico
2005
La condromatosis sinovial (CS) es una metaplasia cartilaginosa de los remanentes mesenquimales del tejido sinovial de las articulaciones. Se caracteriza por la formación de nódulos cartilaginosos en la sinovial y en la cavidad articular (cuerpos libres). La CS afecta sobre todo a grandes articulaciones sinoviales como la rodilla o el codo, siendo rara su aparición en la ATM, en donde tan solo 75 casos han sido publicados. Los síntomas predominantes son dolor, inflamación, limitación de los movimientos mandibulares y crepitación. Los métodos diagnósticos incluyen la ortopantomografía (OPG), la TC, la RM y la artroscopia de ATM. Presentamos un nuevo caso de CS unilateral de ATM, incluyendo la…
Osteoma osteoide de radio proximal
2001
La localización del osteoma osteoide a nivel proximal del radio es excepcional. Su diagnóstico constituye un problema, precediendo al dolor a la aparición de signos radiográficos. Debe de incluirse en el diagnóstico diferencial de todo paciente con dolor en codo o antebrazo. Osteoid osteoma involving the proximal radius is uncommon and presents a dignostic problem. Pain precedes the radiographic appearance. It should be included in the differencial diagnosis when a patient has a radial forearm or elbow pain.
In vitro comparative study on the friction of stainless steel wires with and without Orthospeed (JAL 90458) on an inclined plane
2016
Background: During the treatment of orthodontics, in the mechanics of slide, there takes place friction, which they reduce the slide of the arch across bracket. Therefore, clinical there takes place an increase of the time of treatment. There are different the technologies that try to reduce this friction, as the self-ligating braces. The purpose of this study was to research the in vitro behavior of JAL 90458 as a buffering agent which reduces friction between brackets and stainless steel arch wires of different cross sections and sizes. Material and Methods: Three types of stainless steel wires with different cross sections and three types of ligatures were used with and without JAL 90458…
Non-healing tongue ulcer in a rheumatoid arthritis patient medicated with leflunomide. An adverse drug event?
2017
Leflunomide is a member of the disease modifying anti-rheumatic drugs group used as a treatment modality in active rheumatoid and psoriatic arthritis. “Oral ulcers” are reported in 3-5% of leflunomide medicated rheumatoid arthritis patients with adverse events, but they are not described in detail in the literature. We present a case of an ulcer in the tongue of a rheumatoid arthritis patient managed with leflunomide and contemplate on its pathogenesis. Key words:Leflunomide, oral ulcer, DHODH.
Adenocarcinoma Polimorfo de Bajo Grado de fosa nasal
2005
Se presenta un inusual caso de Adenocarcinoma Polimorfo de Bajo Grado en estadio IV (T4N2CMx) localizado en la fosa nasal con extensión hacia región pterigoidea. El tumor primario fue tratado mediante una resección del mismo a través una osteotomía de maxilar superior tipo Lefort I y a nivel cervical se realizó un vaciamiento ganglionar cervical supraomohioideo homolateral. Posteriormente recibió tratamiento coadyuvante con radioterapia postoperatoria. An unusual case of a T4N2CMx polymorphous low grade adenocarcinoma located in the nasal fossae and extending to the pterygoid area is presented. The primary tumor was excised through a Lefort I maxillotomy and the neck was managed with a supr…
Ulcera crónica lingual inducida por lipoma de la cavidad oral: caso clinico
2004
Aunque se trata de uno de los tumores benignos más frecuentes del organismo, el hallazgo de lipomas en la cavidad oral es un hecho inusual. En esta localización suelen presentar un crecimiento lento, indoloro y asintomático que puede dar lugar a tumoraciones redondeadas y bien definidas de gran tamaño. En estos casos son frecuentes los síntomas relacionados con la compresión de las estructuras vecinas. En el presente trabajo estudiamos el caso clínico de un paciente en el que el lipoma intraoral fue el hallazgo definitivo tras el diagnostico diferencial exhaustivo de una úlcera crónica de la lengua y del suelo de la boca. La clave para el diagnóstico fueron las pruebas de imagen (TC y RNM) …