Search results for "CIENCIAS DE LA SALUD"
showing 10 items of 2623 documents
Enfermedad de Jacob asociada con el síndrome de disfunción de la articulación temporomandibular: presentación de un caso
2005
La enfermedad de Jacob se describe como una entidad infrecuente en la cual se establece una formación articular sinovial entre una apófisis coronoide mandibular elongada y el hueso malar homolateral. El Síndrome de disfunción de la articulación temporomandibular (ATM) ha sido postulado como posible factor etiológico del alargamiento este proceso coronoideo. Presentamos el caso de una mujer de 23 años con un desplazamiento discal de ATM de larga evolución y limitación de la apertura oral, que desarrolló una asimetría malar progresiva. La paciente fue sometida a tratamiento quirúrgico mediante una coronoidectomía intraoral y una artroscopia de la ATM homolateral en el mismo acto operatorio. E…
Actualización en el tratamiento del dolor orofacial
2004
En los últimos años se han desarrollado nuevos tratamientos en el dolor orofacial. En la cefalea en racimos se ha incorporado la administración de nuevos fármacos por vía intranasal. En el dolor masticatorio la aplicación tópica de capsaicina y el uso de férulas orales en combinación con ejercicios de movilización mandibular, son los tratamientos más utilizados. En el dolor neurógeno se han desarrollando nuevos fármacos anticonvulsivos con menos efectos secundarios que la carbamacepina. Los últimos avances farmacológicos se dirigen hacia el uso de AINES y opioides de forma tópica y hacia la combinación de distintos analgésicos. Comentamos en este trabajo de revisión los últimos avances en e…
Effectiveness of passive ultrasonic irrigation in improving elimination of smear layer and opening dentinal tubules
2014
Objective: To compare the ability to eliminate debris and open dentinal tubules of different ultrasound irrigation procedures. Study Design: Forty extracted single-rooted human teeth were instrumented with mechanical rotatory instrumentation, and divided into four groups: (n=10) according to the final irrigation technique: group A (control), 2.5% NaOCl irrigation with the Miraject needle and no ultrasonic agitation; group B, passive ultrasonic irrigation (PUI) with 2.5% NaOCl and Irrisafe 20 tips; group C, PUI with 2.5% NaOCl and Irrisafe 25 tips; group D, PUI with 2.5% NaOCl and K 25 tips. The amount of debris and the number of opened dentinal tubules was established by scanning electronic…
Evaluation of bond strength of orthodontic brackets without enamel etching
2015
Background: to compare the shear bond strength of brackets with and without enamel etching. Material and Methods: In this study, 60 sound premolars were randomly divided into four different groups: 1- TXE group: Enamel etching + Transbond XT adhesive + Transbond XT composite. 2- TXS group: Transbond plus self-etch adhesive + Transbond XT composite. 3- PQ1E group: Enamel etching + PQ1 adhesive + Transbond XT composite. 4- PQ1 group: PQ1 adhesive + Transbond XT composite. The shear bond strengths of brackets were evaluated using universal testing machine at cross head speed of 0.5 mm/ min. The Adhesive Remnant Index (ARI) was also measured. One-way ANOVA, Tukey’s post hoc, Kruskal-wallis and …
Microleakage and shear bond strength of orthodontc brackets bonded to hypomineralized enamel following different surface preparations
2014
Objectives: This study investigated the effects of several conditioning methods on shear bond strength (SBS) and microleakage of orthodontic brackets bonded to demineralized enamel. Study Design: One hundred premolars were selected and immersed in a cariogenic solution for 12 weeks. The teeth were randomly assigned into 5 groups. In groups 1 and 2, the teeth underwent acid etching for 30 and 120 seconds, respectively. In group 3, a combination of laser and acid etching was employed. A self-etch primer (SEP) was applied in group 4 and in group 5, the teeth were exposed to acidulated phosphate fluoride (APF) for 4 minutes before etching. After bracket bonding, the teeth were immersed in methy…
Evaluation of the effects of different groove length and thickness of the retainers on the retention of maxillary anterior base metal resin bonded re…
2012
Objectives: The resin-bonded fixed partial dentures have gained immense popularity in recent years as they are more conservative, esthetic, economic and easily fabricated. However debonding is considered the most common cause of failure of resin bonded prosthesis. The objective of the study were to compare the effects of different groove lengths and thickness of retainers on retention of maxillary anterior base metal resin bonded retainers. Study Design: Twenty five metal dies of maxillary central incisor duplicated from pure typhodont teeth (maxillary left central incisors) prepared to receive retainer for resin bonded fixed partial denture having different test designs were made. Five tes…
In vitro comparison of flexural strength and elastic modulus of three provisional crown materials used in fixed prosthodontics
2013
Objectives: To evaluate and compare the flexural strength and the elastic moduli of three provisional crown materials (methyl methacrylate based autopolymerized resin, bis acryl composite based autopolymerized resin and urethane dimethacrylate based light polymerized resin) after storing in artificial saliva and testing at intervals of 24 hours and 7 days. Study design: A metal master mould with four slots of dimensions 25x2x2 mm was fabricated to obtain samples of standard dimensions. A total of 135 specimens were thus obtained with 45 each of three provisional materials. Further 15 samples of each group were tested after storing for one hour at room temperature and again at intervals of 2…
Fingernails - foreign objects in root canal: a case report
2011
Foreign objects in the pulp chamber or root canal are not unusual findings in patients undergoing root canal treatments in which canals have been left open for drainage. Detailed case history, clinical and radiographic examinations are necessary to come to a conclusion about the nature, size, location of the foreign body and difficulty involved in its retrieval. This kind of situation is more likely to occur in children due to their habit of placing foreign objects in the mouth. The foreign objects may act as a potential source of infection and may later lead to a painful condition. Reported here is an unusual case of metallic pin along with multiple nail pieces retrieved from root canal of…
Análisis de género, productividad científica y colaboración de las profesoras universitarias de Ciencias de la Salud en la Comunidad Valenciana (2003…
2010
[EN] The article presents an analysis of the scholarly output of female professors in the fi eld of Health Science in the Autonomous Region of Valencia from 2003 to 2007,through bibliometric techniques and the application of a gender variable. The work attempted to identify how many women became large producers of scholarly articles compared to those who did not reach the same levels of productivity and impact. A total of 3,739 articles were retrieved during this period and the gender of all authors with more than 2 articles was identifi ed. Of these authors 2,774 (60.41 %) were male and 1,818 (39.59 %) were female. Focusing solely on large producers, the percentage of women publishing more…
Ex vivo study of bacterial coronal leakage in indirect pulp treatment
2012
Objective: The aim of this study was to evaluate, ex vivo, bacterial coronal leakage with different antimicrobial agents applied to the dentine for indirect pulp treatment (IPT). Study Design: Sixty extracted teeth were prepared and randomly distributed into 5 groups (n=10): Group 1: no antimicrobial dentine treatment; group 2: 1% chlorhexidine (CHX)+1% thymol varnish (Cervitec®); group 3: 2 % CHX solution; group 4: 40% CHX varnish (EC40™) and group 5: Clearfil™ Protect Bond (CPB). Ten teeth served as controls. The teeth were restored using a resin-modified glass ionomer cement (GIC) and then mounted in a two-chamber device. The coronal access was exposed to Streptococcus mutans for 45 days…