Gestor de incidencias: Domestic Appliance

Proyecto realizado para la empresa de reparación de aparatos eléctricos Domestic Appliance con el que se se pretende facilitar y mejorar el proceso de gestión de todas las reparaciones que se realizan mediante una aplicación web. A nivel de Pyme, se trata de un sistema básico de CRM (Customer Relationship Management) y de un gestor de incidencias con el que los empleados de la empresa Domestic Appliance podrán mantener un mejor seguimiento de todos los casos abiertos, ver estadísticas y obtener información de todos los clientes. El sistema se completa con la gestión de un correo interno dónde los usuarios se podrán enviar información confidencial entre ellos, actuando como un correo interno.

Teambox Software Appliance

El proyecto consiste en el desarrollo de una distribución Live, que contiene el software colaborativo Teambox. Esta distribución puede ser instalada en un equipo físico y ser puesta en produccion.

Canino mandibular incluido: presentación de un caso atípico de abordaje quirúrgico por vía lingual

Se presenta el caso de un paciente varón que tenía el canino temporal inferior derecho no exfoliado a los 15 años de edad; a la exploración se descubrió que existía el canino permanente totalmente incluído, con la particularidad de que estaba asociado a un quiste folicular y que la posible causa de inclusión era la presencia de un premolar supernumerario también retenido; otra rareza a destacar es que se hizo un abordaje quirúrgico mixto, vestibular para el premolar supernumerario y lingual para el canino permanente siendo esta última eventualidad realmente excepcional. Se discuten los aspectos referentes al diagnóstico y a la estrategia quirúrgica adoptadas en este caso poco habitual.

Servidor d'escriptoris remots

El projecte que s'ha dut a terme és un estudi introductori del funcionament de la tecnologia NX fent ús d'una eina lliure com és FreeNX. Aquesta tecnologia està destinada a millorar el rendiment dels processos de comunicació que s'estableixen quan volem accedir a un escriptori remot. El resultat d'aquest estudi s'ha plasmat en un appliance que integra el servidor esmentat juntament amb una aplicació que s'ha desenvolupat per a la gestió d'escriptoris remots utilitzant el servidor FreeNX i els corresponents clients NX. L'appliance s'ha generat amb la distribució de Linux OpenSUSE 12.1 fent ús de l'eina SUSE Studio i s'ha optimitzat per a que faci funcionar l'aplicatiu web desenvolupat en mode kiosk tant bon punt aquest es posa en funcionament conjuntament amb el servidor d'escriptoris remots FreeNX.

Treball Final de Master - Servidor de Comunicacions Unificades

L'objectiu d'aquest projecte és la creació d'una prova de concepte de comunicacions unificades utilitzant productes de programari lliure existents. Aquesta prova de concepte servirà per poder fer demostracions del funcionament general del programari implicat amb el mínim de preparacions, instal·lacions i configuracions prèvies possibles. El projecte es dividirà en dos appliances o LiveCD, creats a traves de Suse Studio, anomenats Comunicacions Unificades i Comunicacions Unificades 2.Els productes de programari lliure que composen el Servidor de Comunicacions Unificades els podem classificar en productes principals, plugins o addons dels productes i productes secundaris.Com a productes principals tenim els següents servidors que cobreixen les necessitats principals del Servidor de Comunicacions Unificades:Asterisk v1.8.3 : Servidor de telefonia amb veu sobre IP (VoIP).FreePBX v2.9.0beta2 : GUI de control i administració d'Asterisk.Openfire v3.7.0 : Servidor de IM basat en el protocol XMPP.BigBlueButton v0.71a : Sistema de conferència web. Pendent finalitzar-ne l'implementació.I els seguents productes principals que cobreixen les necessitats del servidor de Comunicacions Unificades 2:Zimbra v7.0.1 : Servidor de correu electrònic i de calendari. Pendent resoldre conflicte inicialització LDAP.Funambol v9.0.0 : Sincronització Zimbra amb mòbils.Com a plugins o addons del productes tenim, classificats segons el producte:Asterisk addons: chan_jingle i chan_gtalkZimlets: Asterisk, Google Translator, Funambol i SocialsOpenfire pugins: Asterisk, Facebook i GmailCom a productes secundaris tenim els clients necessaris per poder utilitzar l'appliance:Firefox: Navegador web que servirà com a interfície d'usuari per les diferents eines d'administració i la demostració.Pigdin o Spark: Clients de missatgeria instantània, per l'appliance Comunicacions Unificades.A més d'instal·lar aquests productes, s'implementa una interfície web, mitjançant Drupal, en format HTML per enllaçar les diferents eines d'administració dels productes, per a cadascun dels dos appliances i es realitzara un Kiosk appliance per a familiaritzar-se amb l'entorn SuseStudio.

A Neanderthal Lower Incisor from Cova del Gegant (Sitges, Barcelona, Spain)

Cova del Gegant is located near the city of Sitges (Barcelona, Spain). The cave is a small karst system which contains Upper Pleistocene archaeological and paleontological material (DauRa et al., 2005). The site was first excavated in 1954 and then in 1972 and 1974- (Viñas, 1972; Viñas & Villalta, 1975) and in 1985 and 1989 (maRtínez et al., 1985; moRa, 1988; maRtínez et al., 1990). Finally, in 2007, Grup de Recerca del Quaternari has restarted the archaeological research at Cova del Gegant (DauRa, 2008; DauRa et al., 2010). A human mandible was recovered during the first field season in 1954 and was recently published by DauRa et al. (2005). In the present study, we describe a new human tooth (left I2) that appeared, like the mandible, in a revision of the faunal material recovered from the site in 1974-1975. The specimen preserves the entire crown and the cervical two thirds of the root (Figure 1). The lack of the root apex makes it difficult to determine if the tooth was fully developed at the time of death. However, CT analysis reveals a pulp cavity that could be still open, suggesting root formation was incomplete. The specimen shows only slight dental wear corresponding to stage 2 of Molnar (1971 en Hillson, 1996). Morphologically, the crown shows slight shovelling and a lingual tubercle and appears similar to Neandertal incisors. Standard crown measurements (buccolingual diameter=7.7 mm; mesiodistal diameter= 7.3 mm) (Figure 2) suggest a fairly large tooth, particularly in the BL dimension, again resembling Neandertals in this regard. Discriminant analysis classified the Gegant incisor as Neandertal with a 99.8% posterior probability (Table 2). Association of this tooth with the previously described mandible is considered unlikely given the different ages at death estimated for each. Thus, there appear to be two individuals preserved in the sediments of the Gegant cave, one adult and one subadult (around 8-10 years old).

Five years of sleep apnea treatment with a mandibular advancement device. Side effects and technical complications

Objective: To determine the variation in prevalence of temporomandibular disorders (TMD), other side effects, and technical complications during 5 years of sleep apnea treatment with a mandibular advancement device. Materials and Methods: Forty patients diagnosed with obstructive sleep apnea received an adjustable appliance at 70% of the maximum protrusion. The protrusion was then progressively increased. TMD (diagnosed according to the Research Diagnostic Criteria for TMD), overjet, overbite, occlusal contacts, subjective side effects, and technical complications were recorded before and a mean of 14, 21, and 58 months after treatment and analyzed by the Wilcoxon test (P Less-than .05). Results: Fifteen patients still used the oral appliance at the 5-year follow-up, and no significant variation in TMD prevalence was observed. Subjective side effects were common, and a significant reduction was found in overjet, overbite, and in the number of occlusal contacts. Furthermore, the patients made a mean of 2.5 unscheduled dental visits per year and a mean of 0.8 appliance repairs/relines per year by a dental technician. The most frequent unscheduled visits were needed during the first year and were a result of acrylic breakage on the lateral telescopic attachment, poor retention, and other adjustments to improve comfort. Conclusions: Five-year oral appliance treatment does not affect TMD prevalence but is associated with permanent occlusal changes in most sleep apnea patients during the first 2 years. Patients seek several unscheduled visits, mainly because of technical complications.

Bond strength of orthodontic brackets using different light and self-curing cements

The purpose of the study was to evaluate the shear bond strength of stainless steel orthodontic brackets directly bonded to extracted human premolar teeth. Fifty teeth were randomly divided into ¿ve groups: (1) System One (chemically cured composite resin), (2) Light Bond (light-cured composite resin), (3) Vivaglass Cem (self-curing glass ionomer cement), (4) Fuji Ortho LC (light-cured glass ionomer cement) used after 37% orthophosphoric acid¿etching of enamel (5) Fuji Ortho LC without orthophosphoric acid¿etching. The brackets were placed on the buccal and lingual surfaces of each tooth, and the specimens were stored in distilled water (24 hours) at 378C and thermocycled. Teeth were mounted on acrylic block frames, and brackets were debonded using an Instron machine. Shear bond strength values at fracture (Nw)were recorded. ANOVA and Student-Newman-Keuls multiple comparison tests were performed (P , .05). Bonding failure site was recorded by stereomicroscope and analyzed by Chi-square test, selected specimens of each group were observed by scanning electron microscope. System One attained the highest bond strength. Light Bond and Fuji Ortho LC, when using an acid-etching technique, obtained bond strengths that were within the range of estimated bond strength values for successful clinical bonding. Fuji Ortho LC and Vivaglass Cem left an almost clean enamel surface after debracketing.

Influencia de diferentes sistemas de profilaxis en la adhesión de un sellador de fisuras al esmalte

Introducción: La adhesión de las resinas dentales al esmalte no depende solamente del grabado ácido del esmalte. Otros factores, como el pulido de la superficie del esmalte pueden influir en la fuerza de adhesión de las resinas. El objetivo de este estudio es evaluar la adhesión de un sellador de fisuras fotopolimerizable tras la utilización previa de distintos métodos de profilaxis y dos diferentes tiempos de grabado. Material y método: Ochenta terceros molares extraídos quirúrgicamente se seccionaron en dos mitades (vestibular y lingual). Los dientes se dividieron en ocho grupos de 20 muestras cada uno, de acuerdo con los métodos de profilaxis: polvo de piedra pómez, pasta fluorada, espray de bicarbonato y control (sin profilaxis); y dos tiempos de grabado: 15 y 30 segundos. Se midió la fuerza de adhesión mediante una prueba de tracción en una máquina de ensayos universal INSTRON. Resultados y conclusión: Se utilizó el test estadístico ANOVA, detectándose diferencias significativas en la resistencia a la tracción; el posterior test de Dunnett encontró estas diferencias entre los grupos control y de profilaxis con piedra pómez para 15 y 30 segundos de grabado respecto de los grupos tratados con pasta fluorada y espray de bicarbonato, para los mismos tiempos de grabado (p<0,05), siendo esta diferencia mayor en el grupo de espray con bicarbonato.

Effect of water contamination on the shear bond strength of five orthodontic adhesives

Objectives: To evaluate the shear bond strength and site of failure of brackets bonded to dry and wet enamel. Study design: 50 teeth were divided into ten groups of 5 teeth each (10 surfaces). In half the groups enamel was kept dry before bonding, and in the other half distilled water was applied to wet the surface after etching. The following groups were established: 1)Acid/Transbond-XT (dry/wet) XT; 2) Transbond Plus Self Etching Primer (TSEP)/Transbond-XT paste (dry/wet); 3) Concise (dry), Transbond MIP/Concise (wet), 4) FujiOrtho-LC (dry/wet); 5) SmartBond (dry/wet). Brackets were bonded to both buccal and lingual surfaces. Specimens were stored in distilled water (24 hours at 37ºC) and thermocycled. Brackets were debonded using a Universal testing machine (cross-head speed 1 mm/min). Failure sites were classified using a stereomicroscope. Results: No significant differences in bond strength were detected between the adhesives under wet and dry conditions except for Smart- Bond, whose bond strength was significantly lower under dry conditions. For all the adhesives most bond failures were of mixed site location except for Smartbond, which failed at the adhesive-bracket interface. Conclusions: Under wet conditions the bonding capacity of the adhesives tested was similar than under dry conditions, with the exception of SmartBond which improved under wet conditions

Erupted odontomas: a report of three cases and review of the literature

Introduction: Odontomas are benign odontogenic tumors composed of enamel, dentine, cement and pulp tissue. They are usually clinically asymptomatic, but often associated with tooth eruption disturbances. In exceptional cases the odontoma erupts into the mouth. The present study reports three cases of odontomas erupted into the oral cavity and reviews the literature. Clinical cases: The first case was an 11-year-old girl with impacted 4.6 associated to a radiopaque mass measuring about 2 cm in diameter. The histological diagnosis was complex odontoma. A clinical and radiological follow-up of 4.6 was carried out until its spontaneous eruption. The second case was a 26-year-old male presenting a hard, yellowish-brown mass located distal to the upper left second molar. Computed tomography confi rmed the presence of a radiopaque lesion, and the histopathological study confirmed a complex odontoma. The third patient was a 27-year-old male reporting tongue irritation due to tooth eruption in the inferior lingual region. A periapical radiograph revealed a mixed radiopaque lesion associated to impacted 3.2. The histological report in this case indicated a compound odontoma. Discussion: Odontomas erupting into the oral cavity are rare. The first case was published in 1980, and since then only 17 cases have been reported in the literature. Eight of the 17 cases were complex odontomas; the rest were compound odontomas. Pain, swelling and infection were the most common symptoms, and 13 cases presented an impacted tooth associated with the lesion

Morbilidad de la extracción de los terceros molares en pacientes entre los 12 y 18 años de edad

Objetivo: El propósito de este estudio fue analizar la incidencia de complicaciones después de la extracción quirúrgica de los terceros molares en pacientes de 12 a 18 años de edad. Pacientes y método: Se realizó un estudio retrospectivo de 390 extracciones quirúgicas de terceros molares superiores e inferiores en 173 pacientes en edades comprendidas entre los 12 y 18 años de edad, intervenidos bajo anestesia locorregional en el año 2000 en el Máster de Cirugía Bucal e Implantología Bucofacial de la Universidad de Barcelona. Los pacientes fueron divididos en tres grupos (A: 12-14 años, B:15-16 años, C: 17-18 años). Se registró la edad y el sexo del paciente, el motivo de la extracción, el grado de desarrollo dentario, la posición, la angulación y la inclusión del tercer molar. Finalmente se valoró la asociación entre dichas variables y la aparición de complicaciones postoperatorias. Resultados: La mayoría de los pacientes intervenidos fueron del sexo femenino (66,9%), y el grupo de edad en la que se realizó el mayor número de extracciones (62,8%) fue en el grupo C (17-18 años). El principal motivo de extracción fue la indicación por parte del ortodoncista (40,5%), seguido por la indicación profiláctica (39,5%). La presencia de clínica fue el motivo de extracción en un 20% de los casos. Se observó una incidencia del 15,6% de complicaciones postoperatorias tras la extracción de 390 terceros molares. En el grupo A el riesgo de complicaciones fue de 17,4%, en el grupo B de 19% y en el grupo C de 13,7%. Todas las complicaciones fueron reversibles y de corta duración como el dolor y la inflamación persistente, la infección, el trismo y la equimosis. Se presentó un caso de parestesia del nervio dentario inferior y un caso de parestesia del nervio lingual que remitieron a los 2 meses y al mes respectivamente. Conclusiones: este estudio demuestra que no hay diferencias significativas en las complicaciones observadas entre los tres grupos de edad, y por lo general, éstas son leves y reversibles. Se observó una mayor tendencia de complicaciones en las mujeres y el porcentaje de complicaciones aumenta cuanto menor es el espacio disponible para la erupción

Stafne bone cavity: a retrospective study of 11 cases

Objective: to describe the clinical and radiological characteristics of patients with Stafne bone cavity. Study design: a retrospective, observational study of 11 cases of Stafne bone cavity. After finding an imagine compatible with Stafne bone cavity in the Orthopantomograph® of 11 patients, a sialography of the mandibular gland was made in 3 cases, computerized tomography (CT) in 6 cases, and in 4 cases surgical intervention to confirm the diagnosis. Results: the average age was 51.5 years, predominantly males. The entity was diagnosed incidentally during a routine radiology in all cases. The sialography revealed glandular tissue within the defect, and the CT demonstrated the conservation of the lingual cortical and the peripheral origin of the lesion. Glandular tissue was found within the lesions of two of the patients who underwent surgery, and in the other two the cavity was empty. No progressive changes were found in any of the 11 cases. Conclusions: Stafne bone cavity was an incidental finding, presenting no evolutionary changes, and as such conservatory therapy based on periodic controls was indicated. Currently, complementary techniques such as CT are sufficient to establish a certain diagnosis.

Lower incisor dentoalveolar compensation and symphysis dimensions among Class I and III malocclusion patients with different facial vertical skeletal patterns

Objective: To compare lower incisor dentoalveolar compensation and mandible symphysis morphology among Class I and Class III malocclusion patients with different facial vertical skeletal patterns. Materials and Methods: Lower incisor extrusion and inclination, as well as buccal (LA) and lingual (LP) cortex depth, and mandibular symphysis height (LH) were measured in 107 lateral cephalometric x-rays of adult patients without prior orthodontic treatment. In addition, malocclusion type (Class I or III) and facial vertical skeletal pattern were considered. Through a principal component analysis (PCA) related variables were reduced. Simple regression equation and multivariate analyses of variance were also used. Results: Incisor mandibular plane angle (P < .001) and extrusion (P  =  .03) values showed significant differences between the sagittal malocclusion groups. Variations in the mandibular plane have a negative correlation with LA (Class I P  =  .03 and Class III P  =  .01) and a positive correlation with LH (Class I P  =  .01 and Class III P  =  .02) in both groups. Within the Class III group, there was a negative correlation between the mandibular plane and LP (P  =  .02). PCA showed that the tendency toward a long face causes the symphysis to elongate and narrow. In Class III, alveolar narrowing is also found in normal faces. Conclusions: Vertical facial pattern is a significant factor in mandibular symphysis alveolar morphology and lower incisor positioning, both for Class I and Class III patients. Short-faced Class III patients have a widened alveolar bone. However, for long-faced and normal-faced Class III, natural compensation elongates the symphysis and influences lower incisor position.

Retrospective study of 145 supernumerary teeth

Objective: The goal of the present retrospective study is to describe the distribution of the supernumerary teeth in a population of patients that have been attended at the Public Clinic of the Department of Oral Surgery. Background: Supernumerary teeth and multiple hyperdontia are usually associated with different syndromes, such as Gardner syndrome, or with facial fissures; however, they can appear in patients without any pathology. Their prevalence oscillates to 0.5-3.8% in patients with permanent teeth and to 0.35-0.6% in patients with primary teeth. Patients and Methods: A total of 36,057 clinical histories of patients that were admitted at the clinic between September of 1991 and March of 2003 were revised. The following data were extrapolated: age, sex, number of extracted supernumerary teeth, localization, morphology and type of supernumerary teeth. Consequently, 102 patients were included into the present study. Results: Of the 147 supernumerary teeth identified in the oral cavities of patients 145 were extracted. The most frequent supernumerary teeth identified were mesiodens (46.9%), followed by premolars (24.1%) and fourth molars or distal molars (18%). As for location, 74.5% of the supernumerary teeth were found in the superior maxillary bone and 46.9% of the supernumerary teeth were present in the palatine/lingual area. Heteromorphology was found in two thirds of the supernumerary teeth, with conical shape being the most frequent. Finally, 29.7% of the supernumerary teeth had occlusion with permanent teeth, and mesiodens were the predominating type of supernumerary teeth that showed this feature. Conclusions: Mesiodens very frequently cause retention of permanent incisors, which erupt spontaneously after the extraction of supernumerary teeth, if there is sufficient space in the dental arch and if they conserve the eruptive force. Generally, supernumerary premolars are eumorphic and are casually discovered during radiological exam, if not producing any symptomology.