bluuebunny/crossref_metadata_2025 huggingface dataset:
Efectos de la Polución Domestica sobre la Macrofauna Bentónica de Sustratos Blandos en la Costa Pacífica Colombiana
Authors: Cantera K. Jaime R. , Neira 0. Raúl , Tovar. Jorge
Published: August 2019

Se estudió comparativamente entre Enero He 1985 y Diciembre de 1087, la composición y la estructura ecológica de las comunidades mac roben tónicas de playaii intermareale» fangosas y fango arenosos con o *in resto« rocosos (cantos y gravas provenientes tic la erosión de acantilados), en las bahía« «le Buenaventura y Málaga (Parifico Colombiano).La fauna fue colectada en muestras de sustrato en cuadrados de 25 cm de lado y de '20 cm de profundidad (12500 cm3), las cuales se obtuvieron aproximadamente cada don meses, en transectoe de 300 m de longitud perpendiculares a la playa- Todas las muestras fueron fijadas en formol neutralizado 10% preparado en agua marina y posteriormente preservados en formol o alcohol según el grupo taxonómico. los organismos retenidos en un tamiz de 0.5 mm fueron identificados, contados y analizados considerándolos, para el presente estudio, como macrofauna.Como ejemplo de playas fangosas contaminadas se escogió el área denominada Playa Basura donde desembocan emisores urbanos de la ciudad de Buenaventura. Como ejemplos de playas fangosas no contaminadas fueron escogidas una playa fango-arenosa del área de punta Soldado, también en la Bahia de Buenaventura, y una playa fangosa con restos rocosos en Punta la Muerte, Bahia de Málaga.
Utilización de Harina de Cabezas de Camarones Peneidos Cultivados y Fuentes Vegetales No Convencionales en la Alimentación de Camarones de Agua Dulce (Marrobrachium Rosenbergii)
Authors: Restrepo O. Jaime , García G. Francisco , Prahl Hans Von
Published: August 2019

El cultivo de camarones,tanto marinos romo de agua dulce, presenta un desarrollo limitado en nuestro país, debido principalmente a que los ron centrados constituyen un 30% de los costos de producción (Baraja« y Bel-trán, 1987). Este panorama ha motivado la experimentación en búsqueda de otras alternativas que den solución a esta componente económica y a su vez tengan un efecto favorable sobre crecimiento y conversión alimenticia de los crustáceos mencionados.Dentro de los ingredientes que han resultado ser de un valor excepcional, están las cabezas de camarón, un producto de desecho que se obtiene del procesamiento de especies cultivadas y capturadas. Dicho material se caracteriza por su alto nivel de proteínas (54%) adecuado balance de aminoácidos y de ácidos grasos insatvirados, importantes en cualquier tipo de dieta alimenticia (Meyer 1986; Hamachandran, 1986).
Exploración Geofísica de Recursos Naturales promisorios del Suroeste de la Costa Pacífica Colombiana
Authors: Zuñiga E. Orlando , Padilla Luis E.
Published: August 2019

EI presente estudio se basó principalmente, en la exploración de recursos na turales promisorios: limolitas y arcillolitas limosas, gravas y arenas, y gas metano, existentes en la zona de investigación que cubre las cuencas de los ríos Rosario, Mejicano y Chagui en el Departamento de Nariño. Se utilizó el método geoeléctrico con un dispositivo tipo Schlumberger. El procesamiento de datos geoeléctricos se realizó por medio de un filtro tipo RESIX V2.0.
Estudio del Perfil de Profundidad (Depth Analysis) de Micas Seguido por Iss-Sims
Authors: Stouvenel H. P.
Published: August 2019

Por medición de la perdida de energía en colisiones clástica-s de iones de gas noble a energía moderada sobre nucas se estudio la concentración en la superfino de loa diferentes componentes: 0, F, Al + Si, K. Ti y Fe.El mismo bombardeo produce erosión de la superficie exponiendo sucesiva mente las diferentes capas del material. Esto permite la realización de análisis a profundidades variables dentro del material (DEPTH ANALYSYS). Este análisis, en el caso de las micas, no puede ser realizado debido a las pert urbac iones que simultáneamente produce el bombardeo en el material: Sputtering preferenrial, implantación, reconstrucción superficial o formación de enlaces, etc.El análixix por enpedroscopía de masas de los gases residuales aporta información adicional La observación por microscopía complementa esta investigación.
Exploración Geofísica de Bentonitas y Diatomitas en el Corregimiento de Vallejuelo del Municipio de Zarzal (Valle)
Authors: Zúñiga Orlando , Padilla Luis E.
Published: August 2019

El presente estudio tiene por objeto presentar los resultados de las exploraciones geológicas y geofísicas en el corregimiento de VAllejuelo del Minicipio de Zarzal (Valle), encaminados a determinar reservas significativas de bentonitas y diatomitas. Se utilizó el método geoleléctrico con un dispositivo de tipo Scidumbergei. El procesamiento de datos geoeléctricos se realizó por medio de un filtro tipo Cihosh V'2.0. los resultados obtenidos de la exploración permitieron describir y evaluar algunos recursos naturales promisorios de la zona de estudio
Prolegomenos para una Ontologia Complementarista No Inmanentista
Authors: Uribe  G. C.
Published: August 2019

Es conocida. la salida- que plantea d'Espagnat. a las paradojas que se des prenden de la teoría cuántica, y en especial a la no separabilidad y al problema de la medida: considerar que el mundo de nuestra experiencia tiene una realidad tan sólo empírica, antropocéntrica, dependiente de nuestro conocimiento; mas allá de esa "realidad empírica", del fenómeno, estaría la realidad utout courl" independiente del sujeto (la "realidad en sí")[l|. El presente trabajo investiga un posible trasfondo filosófico de esta salida. Como un intento de conciliar la teoría cuántica con el realismo gnoseológico (dado que las posturas filosóficas edificadas sobre un "Principio de luma nencia" son inmediatamente consistentes con tal dualidad)
Evaluación Cualitativa de la Contaminación por el Uso de Pesticidas en la Región Comprendida entre el Río Mira y el Río Caunapi en la Bahía de Tumaco
Authors: Paez M Martha J. , Granada P. Amparo
Published: August 2019

En 1991 se realizaron contactos entre 1a Universidad del Valle y la Armada Nacional en Tumaco con el objetivo de realizar investigaciones conjuntas que permitieran determinar el tipo de contaminantes de las aguas de la bahía de Turnaco. Con este fin se adelantó una avaluación preliminar realizando encuestas a los residentes y vecinos de los rios principales que desembocan en esta bahía. Se analizó también la forma de pesca y los residuos arrojados a las aguas por industria» de esta zona.
Discurso Pronunciado por el Profesor Guillermo Restrepo Sierra a Nombre de los Recipiendarios de los Premios de la Academia Correspondientes al Año 1992
Authors: Restrepo Sierra. Guillermo
Published: August 2019

Es un gran honor hablar ante ustedes a nombre de los recipiendiarios de los premios de la academia correspondientes al año de 1992. Quienes hemos recibido tan honrosas distinciones académicas dejamos constancia de nuestros sentimientos de gratitud y reconocimiento a la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, una institución que desde su fundación definitiva en 1936 se ha constituido en un eslabón fundamental en el desarrollo de la cultura científica nacional, tan importante, quizás, corno la Expedición botánica de Mutis y la Comisión Geográfica de Codazzi.
Effect of bacterial lipopolysaccharide in primary cultures of human gingival fibroblasts
Authors: Verutti Maria Cecilia , González Octavio , González John , Moreno Gloria
Published: August 2019

Summary: Introduction: different factors participate in the pathogenesis ofperiodontal diseases. One factor is the interaction between the fibroblasts and derived productsfrom the microorganisms found in the periodontal environment. Objective: In this work, cultures ofhuman gingival fibroblasts from a healthy donor were used to characterize the in vitro responses tobacterial lipopolysaccharide. Methods: the proliferative response was evaluated using cell count andexpression of CD14 was assessed by flow cytometry. Results: after 24 hours of culture an increase inthe cell number was detected in cultures treated with 1.0 mg/mL LPS, but these differences were notstatistically significant. Human gingival fibroblasts express CD14, but its expression decreases incells cultivated after a short period of time. Nevertheless, lipopolysaccharide helps to recover theexpression of CD14 in fibroblast after 24 hours of culture. Conclusion: preliminary result suggeststhat expression of CD14 on gingival fibroblasts could be modulated by this bacterial derived toxin.The primary culture of human gingival fibroblasts allows the establishment of an in vitro model toevaluate different processes in development of the periodontal diseases. Key words: Gingivalfibroblasts. Lipopolysaccharide. Periodontal disease.
Knowledges, attitudes, beliefs and practices about oral health in scholar population of public schools in Santiago de Cali, 2005
Authors: García Lina , Agudelo Leonardo , Cruz Jennifer , Otálvaro Claudia , Ovalle Alexander , Sánchez Yina
Published: August 2019

Summary: Introduction: The Scholar population of the public sector of Calicity has been object of actions of promotion, prevention and treatment, through the program of theHealthy Student, we decided to make a Bucodental epidemiologist profile with the Analysis of theKnowledge, Attitudes/Beliefs and Practices analysis to know the bucodental status of children andthe actions to achieved. Methodology: A systematic and cluster sample was made. A cross-sectionalsurvey was undertaken among 204.181 children from 47 scholar institutions, the clinic staff wasstandardize for using the survey and the information was analyzed by the ACCESS® program. Results:43,5% of children associate the mouth with functions like speaking and eating. 95% of childrenreported to be in agreement with their teeth. 60% of children consider teeth must stay in mouth forall life . 32.3% of sample goes to dentist when pain appears. Discussion: According to the resultsobtained in the Municipal oral health survey compared with Departmental study made in 1998; resultswere similar in most of the answers of the survey; we concluded that the children’s knowledge inthese last years have not varied in a significant way. Recommendations: It is recommended tocontinue fortifying the component of self-esteem and self body acceptance within the Education inoral health. Key words: Oral Health. Knowledge. Attitudes. Belief. Practices.
Classification Proposal to measure extension defects of endodontically treated anterior teeth
Authors: Murgueitio Rafael
Published: August 2019

Summary: A classification of the extension defects ofendodontically anterior teeth is presented. This classification is based on the amount of remanentcoronal tooth after an essential treatment has been done, such as: root canal therapy, removal ofcarious tissue, periodontal surgery whenever needed and tooth preparation either for the placementof a direct restoration material such as composite or a post and core and full crown restoration.This classification is based on 3 specific variables: supragingival remaining coronal toothstructure or core height, diameter and root canal depth. Key words: Post and core. Root canaltreatment. Diagnostic.
The impact of the Spanish colonization: Paleopathological and isotopic evidences of changes in oral health and dietary diversity in Native colonial societies from the Colombian Southwest
Authors: Burbano Delgado Miguel
Published: August 2019

Summary: Native Americansocieties suffered a profund deterioration of health under European colonization. In addition, dietdiversity and nutritional quality decreased whereas workloads and violence increased considerably.Social and cultural consequences of such contact have been well documented by archaeology, historyand ethno-history. However, the true biological impact is poorly understood. This paper assess thebiological impact of the European arrival to northern South America through the study of humanskeletal remains of two native Colonial societies from the post-contact period in the ColombianSouth West. The first sample came from “El Alto del Rey” (ca 1200-1600 a.C), at Cauca Department,and the second from “Maridías” (1615-1720 a.C), types of dental diseases were obtained as well asphysiological stress indicators and stable isotopes ratios of carbon (12C y 13C) and nitrogen (15N).These data were used to try to determine food intake, dietary diversity, nutrition, and the state oforal health of the Colombian native communities under Spanish control. Dental paleopathologicalanalyses showed a high increase in the rates of caries, dental calculus, periodontal disease,antemortem tooth loose (AMTL) and enamel hypoplasias In agreement with these results, the isotopeanalysis reveals an abrupt increase in the plants rich in carbohydrates consumption and highdependency on plants such as corn and other grains. Changes were more considerable in Maridías thanin El Alto del Rey, since the former was exposed to a longer and more direct colonial contact. Inaddition, this study suggests deep changes in diet, health and way of life of these communities. Thebioarchaeological analysis of human skeletal remains represents an important source for a betterunderstanding of the dynamics of the biocultural change resulting from colonization in Colombia. Keywords: Paleopathology. Post-contact period. Dental diseases. Stable isotopes. Paleodiet. Oralhealth. Colombian Southwest.
Effect of hydrogen peroxide activated by ultraviolet light and carbamide peroxide in teeth bleaching
Authors: Cabrera Adriana , Madrid Melissa , Pacheco Luisa , Suarez Ana , Garzón Herney
Published: August 2019

Summary:Objective: to evaluate dental enamel surface alterations after bleaching treatments with Hydrogenperoxide and Fluoride. Methods: Extracted pre-molars were analys under SEM after bleachingtreatment; the samples were storaged in saline solution. Two phases were made, without and withfluoride application after bleaching treatment using Nitewhite® and Zoom2® as bleaching agents, theshade was taken at baseline and after the bleaching procedure. Results: 36.6% of samples showedmoderate alterations and 32.9% showed severe enamel alterations. Post/treatment with fluoride showedvariable outcomes, but mild alterations in the fluoride/treated samples were found to be morefrequent, A statistically significant result was found among fluoride/treated and non/treated groupsafter bleaching (P<0.005) chisquare test. In contrast, within fluoride/treated groups it was notfound significant differences. Conclusions: The use of high concentrated in/office carbamideperoxide may require limited application sessions as recommended by the manufacturer. The use ofpost/treatment fluoride may bring great benefit to patient’s dental hypersensitivity. Key words:Carbamide Peroxide. Hydrogen Peroxide. Enamel roughness. Fluoride. Remineralization.
Efficacy of four toothbrushes on removal of plaque with modified Bass technique in Dental Hygiene Students at Cali
Authors: Castro Pedro , Corral Claudia , García Felipe , León Pilar , Martínez Cajas Carlos Humberto , Moreno Freddy
Published: August 2019

Summary: Aim: To evaluate the efficacy of four different designed toothbrushes (Colgate Microsonic ®, Colgate Twister Fresh®, Colgate 360 Sensitive® y Colgate 360®) to determine the clinical advantage on removal of plaque using modified Bass technique in dental hygiene students in Cali. Methods: This is a controlled clinical trial to compare the efficacy of four toothbrushes designs with different tooth brushing methods in 200 female dental hygiene students with ages from 15 to 43. Control group used any tooth brushing technique whereas test group used modified Bass technique. Follow up was made daily for 21 days with O´Leary Plaque Index. Results: Colgate Twister Fresh® toothbrush had more probability to reduce plaque index at any time of follow up period than other toothbrushes. Modified Bass technique had more chance to reduce plaque than other techniques but with no significant differences. Conclusions: there were no statistically significant differences between tooth brush techniques. None of the four designs of studied toothbrushes showed differences in regard to plaque elimination. Key words: Manual toothbrushes. Modified Bass tooth brushing technique. Dental plaque control. Oral hygiene practices.
Skeletal class II relationship with vertical development and posterior mandibular rotation. Highpull headgear and Maxillary Orthopedic Splint Treatment. Clinic Observations and a Case Report
Authors: Velosa Alejandro , Polania Ángela
Published: August 2019

Summary: Orthopedic correction of Class IISkeletal jaw discrepancies in growing children is a widely accepted treatment approach. Thecombination of maxillary orthopedic splints or activators with various extra oral appliances hasbeen recommended for maximum orthopedic effect. This combination appears to allow better control ofthe vertical growth component, which is a critical factor in the correction of sagital skeletal jawdiscrepancies. Key words: Skeletal class II. Highpull headgear. Maxillary acrylic plaque.
John Collier o “Tim Bobbin” (1708 - 1786)
Authors: Moreno Freddy
Published: August 2019

Fue un caricaturista inglés nacido en Urmston el 18 de Diciembre de 1708. Fue conocido por sus seudónimos Tim Bobbin o Timothy Bobbin.
FREEDOM, THE CHIMERA. Variations of a theme
Authors: Barreto José Fernando
Published: August 2019

Un gran silencio hoy recorre AméricaLa del indio, el mestizo, la del zambo y el negro.Nación hace quinientos años cuando por vez primeraEl “blanco” holló nuestra tranquila tierra.
No fue bastante el trueno que estalló en la epopeyaLibertaria nacida en el silencio de las Logias viajeras,De las logias de Europa y en las de nuestras sierrasQue tuvieron por fuente el Iluminismo y la EnciclopediaLa negación de Dios y la inmensa miseria,El sonar de tambor y la flauta traversa,La caña de los valles y el trigo en la meseta,El blanco de las nieves y el tremor de la tierra,El llanto de los niños y el gemir de las viejasLa muerte de los hombres y el grito de las hembras.
Un poderoso grito hoy vuelve a recorrer América.El mismo que naciera de Miranda y Bolívar,de Sanmartín y O’Higgins, de Sublett y Domínguez,De Madero y de Villa, de la Pola y Manuela,De Socorro Rodríguez, de Galán y de Herrera,De Acevedo y de Torres, de Sucre y de PovedaDe Martí, de Petain, de Anzoátegui y CarreraY de tantos valientes que clamaron la guerraPara que pudiéramos destrozar las cadenasQue agrillaban nuestras manos y piernas,Pero nunca las fuertes ansias de libertad. Un gran silencio de nuevo invade a América,El mismo que creciera de la playa a la selvaDe la orilla del mar a la inhiesta ladera,De la pampa tranquila a las cumbres eternasCuyos riscos enormes son como azucenas,Cubiertos por las sábanas de las nieves perpetuas Donde el grito estentóreo de Libertad, se hiela
Un gran silencio hoy recubre a América.La liberta no existe, es sólo una quimera.
Ophthalmologic examination in dental school students and its relationship with the use of dental curing light
Authors: Giraldo Alejandra , Hernández Ana Marcela , Jaramillo Isabel Cristina , Lerma Maria Cristina , Zamnora Ingrid
Published: August 2019

Objective: We determined the ophthalmic diagnostic of dental students at the University del Valle (Cali, Colombia), and compared the findings of ophthalmologic evaluation in a group of students previously exposed to the use of the curing light in clinical practice, and other group of students not exposed to it.
Methods: It was implemented a survey by interview to report possible diseases, accidents and variables related to ocular pathology, including the use of curing lamp. Additional to this, it was performed an electroretinography, a photograph of eye fundus and a complete ophthalmological examination to each student.
Results: It was not found a statistically significant association between injury and exposure to the lamp, but there was a trend towards a higher percentage of ninth-semester students who presented some kind of ocular pathology, compared with students coursing fifth semester.
Conclusion: It is important to continue promoting and increasing knowledge about biosafety standards in dental students, dentists, assistants and patients, and give continuity to interdisciplinary work like this, which worked in a complementary manner with ophthalmologists. Further studies are recommended in the same population, after a period longer than two years.
Scaling and Root Planing in smoker patients with Moderate to Severe Chronic Periodontitis: Clinical and microbiological effects
Authors: Cruz Olivo Edison Andres , León Arcia Miguel Evelio , Soto Franco Jorge
Published: August 2019

Aim: A pilot clinical trial was performed to determine (i) microbiological and clinical efficacy (ii) confort of One Stage scaling and root planing vs. multiple SRP sessions, in smoker patients with chronic periodontitis.
Material and Methods: Nine smoker patients, men and women, between 40 to 70 years old, systemically health, with mean deep pocket ≥4mm, attachment loss, bleeding on probing, diagnosed with chronic periodontitis moderate to severe based on American Academy of Periodontology (A.A.P.), were randomized into two groups for scaling and root planing, group A for full-mouth, and group B per one week. Deep pocket, clinical attachment lost, bleeding on probing was measured. Subgingival samples were taken from deepest pockets before and six months after treatment. Patients were asked with a survey about comfort of the treatment in both groups.
Results: Group A showed mean deep pocket decreased in 0.88mm, clinical attachment lost in 1.12mm, bleeding 7.52% initial average respect. Group B, did not show changes respect initial measures, in contrast with bleeding, it has decreased in 0.5%. Both groups had showed similar decrease in prevalence of: Aggregatibacter actinomycetemcomitans (33%), Porphyromonas gingivalis (22%) Prevotella intermedia (22%), Fusobacterium species (55%), Eikenella corrodens (44%), Gram negative enteric rods (11%). Group B has referred better comfort than group A, during the treatment.
Conclusion: Although there was no statistically significant differences, there was a trend showing that the Full-mouth scaling and root planning got better clinical and microbiological efficacy than scaling and root planing in multiple sessions, but had shown lower comfort around the treatment.
Despair Love
Authors: Bustos Metrio Mayling
Published: August 2019

Mucho tiempo anduve del brazo tiernode la siempre sorpresiva soledadbebí de su beso secodisfruté de su vacío llenocomí del árbol falso de frutos ciertosDe pronto me acecha un deseo…decidir que es preciso decir no másuna bocanada de aire de almaun tiquete al sí, al ya, al ahora vehemente del deseouna apuesta por esto que si no es hoy no es…Y luego el luego que no llegay escuchar de tu voz el desamparo...prefiero un adiós de tu voz en mi oídoa un silencio compartido por tus labios...
Relation between the facial contour form, the dental arches and the upper central incisors shape in dental students from Universidad del Valle - Cali
Authors: Acosta David , Porras Andrea Melissa , Moreno Freddy
Published: August 2019

SUMMARYObjective: To determine the relationship ifany between the facial contour, the form ofthe dental arches and the morphology of theupper central incisors in dental students ofthe University del Valle.Methods: This is an observational descriptivestudy that determined the relationbetween the facial contour, the dentalarches and the upper central incisorsshapes through digital photographs in 48dental students (24 women and 24 men) atUniversity del Valle belonging to a mixedethnic group predominantly Caucasoid. Thecoefficient of contingency was used to establishthe possible association between theforms of the face, the dental arches and thecentral incisors. A p<0.05 was consideredstatistically significant.Results: The oval form was the mostfrequent facial contour (50%), includingthe upper (77,1%) and lower dental arch(85,4%) and the upper right central incisor(41,7%) were also prevalent. By gender,the facial contour presented significantdifferences, given that in women was moreprevalent the round shape (29,2%) while inmen it was the square form (37,5%); neverthelessthe oval form was present in themajority of cases in both male and female.Conclusions: The oval form was the mostfrequent facial contour, dental arches andthe upper central incisors form. It wasnot possible to determine the form of thepermanent upper central incisors usingthe facial contour type or the form of thedental arches.Keywords: Forensic dentistry, dental identification,facial contour, dental arch, uppercentral incisors shape.
Comparison of tensile properties of thermo cured acrylic resins for the preparation of denture bases
Authors: Castillo Juán José , Herrera Santiago , Rey Pablo Andrés , Mejía Pavony Carlos , Jaramillo Adriana
Published: August 2019

SUMMARYObjective: The purpose of this in vitro studywas to compare the tensile strength betweentwo materials for the manufacture ofacrylic denture bases (Veracril® from NewStetic and SR Triplex Hot® from IvoclarVivadent), and to know the mechanicalproperties of materials to study that haveclinical implications.Methods: Laboratory tests were conductedunder the technical standard of ASTMInternational # D 638-03 to evaluate thetwo acrylic resin materials for denturebases, processed by pressed moulding. Theobservations were made using the universaltesting machine Tinius Olsen® brandH50KS to analyze the tensile propertiessuch as modulus of elasticity, elongation,yield strength, maximum strength, energy,effort and tensile stress between the twomaterials evaluated.Results: For the effort, maximum strengthand modulus of elasticity, high-impactacrylic resin SR Triplex Hot® showedhigher values. With regard to the characteristicsof maximum displacementbefore the fracture, elongation and energy,conventional acrylic resin showed highervalues. The only characteristic that showeda significant difference between the twogroups of thermo-cured acrylic resin wasthe modulus of elasticity where the highimpactacrylic resin obtained a much highervalue than conventional acrylic resin.Conclusions: The acrylic resin SR TriplexHot® presents higher values in some tensileproperties, while the Veracril® showsbetter in others. The only characteristic thatshowed a significant difference betweenthe two acrylic resins was the modulus ofelasticity.Keywords: Acrylic resin denture bases,tensile strength, high impact acrylic resin.
Cross-bite treatment with functional orthopedic maxillary Bimler C. Case report
Authors: Bedoya Antonio , Gallego Mónica
Published: August 2019

Managing a crossbite unidental in an adolescent by means of functional orthopedic treatment maxillary (Bimler C) after a few months of permanent use, it is unsatisfactory in the functional, occlusal and aesthetic area. Allowing for the patient with a point pleasant, and avoiding a sequence of tissue damage dental, bone and periodontal that can have irreversible consequences for teens. It is necessary to a good clinical examination and a sound plan of treatment for the functional orthopedics of the Maxillas allow for the correct solution to this malocclusion.
Key words: Anterior crossbite, orthopedic treatment maxillary, Bimler C.
Early treatment of anterior cross bite. A literature review
Authors: Hernández Jesús , Padilla Margarita
Published: August 2019

Nowadays, it is widely accepted the importance of treating early occlusal abnormalities of clinical significance for the development of the stomatognathic system. An early treatment would restore the harmony and the functionality of the craniofacial complex, it simplifies the corrective procedures, reduces the need for permanent tooth extractions and brings psychological benefits to patients, to name a few. The presence of malocclusions should intervene early to restore proper neural excitation in the craniofacial complex and provide the conditions necessary for each patient to receive their growth potential. The anterior cross bite (MCA) should be treated early to prevent harmful effects on growth and, the development of the maxilla and mandible, to avoid traumatic occlusal forces and restore proper muscle contraction patterns in the patient. This article shows some of the early treatment options for the MCA in primary and mixed dentition after an accurate diagnosis.
 
Key words: Anterior cross bite, early treatment, class III malocclusion, occlusal plane. Periodontitis, microbiology, transmission, Aggregatibacter actinomycetemcomitans.
Prevalence of infection dissemination from odontogenic origin to the bucomaxilofacial complex
Authors: Moreno Johana , Gutiérrez Carlos , Rodríguez Martha , Jaramillo Adriana
Published: August 2019

Objective: To establish the prevalence of infectious dissemination of odontogenic origin of the maxillofacial complex in patients attending for emergency consultation and outpatien service of a second level hospital in the city of Cali.
Materials and methods: We reviewed 142 medical records of adult patients of any gender and ethnicity, with diagnostic impression of periapical abscess with and without fistula, periodontal abscess, pericoronitis, cellulitis and mouth and face abscesses that had disseminations to maxilla and mandible, who attended the emergency dental service and the outpatient service of a level II hospital in Cali in 2009.
Results: One hundred and twenty four of 695 patients who attended the service of dentistry presented any infection of odontogenic origin, equivalent to the 17.8%. The most frequent diagnostics were acute periocoronitis, cellulitis and abscess.
Discussion: The dentist must know the prevalence of these infections and the risks of occurrence of a more complicated condition as a mediastinitis by spread from the dental infection, with a high rate of mortality. Infections such as these can put at risk the life of the patient which leads to hospitalization.
Conclusions: The anatomical area with greater commitment was the lower maxillary infection spread from the lower molars and premolars. It is important to recommend further promotion and prevention education strategy directed to dentists and vulnerable population, to explain the risks associated with an oral infection and the importance of early treatment and the possibility of generating resistance to antibiotics.
TELL ME, IS IT TRUE?
Authors: Barreto José Fernando
Published: August 2019

Dime ¿Es verdad que en las noches te escapasy que viajas silente a regiones remotas?dime ¿Es verdad que también cuando callasestas tan absorta que mis labios no notas?Dime ¿Es verdad que a religiones muy altas,Sin siquiera pensarlo, como luz te remontas?Dime ¿Es verdad que prendida a las faldas del vestidode un ángel, por regiones ignotaste aventuras de noche si se casan tus alas?Dime ¿Es verdad que nuestras almas solasHablaran de reunirse en las lejanas salasde los empíreos cielos, cual murmurantes olasQue unidas se refunden al chocar en las playasFundiendo su energía en suaves barbacoas?
Standardization of a protocol to irradiate cell cultures with low level laser
Authors: Domínguez Ángela , Criollo Gómez William
Published: August 2019

Introduction: It is impossible to apply orthodontic therapeutic laser during the orthodontic treatment and to select different times of exposure, frequency or intensity for every single cell. The whole area gets irradiated in seconds according to the laser type . This could have a proliferation effect in some cells and a harmful effect in others cells. So, it´s very important to asses the effects of a laser application on the cells involved in dental movement, to verify the effect and reaction after laser therapy.
Objective: To create and standarized a clinical protocol to irradiate culture cells involved in dental movement (Human fibroblasts, osteoblasts and pre-osteoclasts in order to understand the basics of it´s clinical effect.
Materials and methods: Gingival and periodontal fibroblasts, normal human osteoblasts (NHOst) and human osteoclast progenitor cells in culture were irradiated using a low energy level laser (As-GaAl), operated at 36.73mW, 832.79nm nm wavelength 3.75 J/cm2 and 32.40 seconds per well.
Conclusions: The cytotoxicity tests showed that irradiation is safe protocol for the four groups of cell cultures.
Facial nerve: Essential aspects from the biomedical sciences
Authors: Rivera Guillermo
Published: August 2019

This article is a review of the anatomical literature about of the facial nerve. It has historical aspects, functional components, periphery route inside and outside of the petrous portion of the temporal bone. It describes the nerve branches and territories of innervation. It also describes its nervous connections to the brain`s stem, specifically to the pons, which is the cerebral center, where facial nerves’ motor and vegetative nucleus is located. The information presented here could be useful to students of medicine, dentistry and others health programs at level of undergraduate and postgraduate. In this article have been used known books of anatomy and neuroanatomy. It has been also used articles of the last five years written by professional in neurosurgery, otorhinolaryngology and morphology. This article presents a correlation among the facial nerve anatomy and its implications in pathology, trauma and surgery of head and neck region.
Determining tartrate-resistant acid phosphatase in decalcified bone samples pig Sus domesticus
Authors: Valencia Carlos , Franco Manuel , Pustovrh Carolina , Salazar Liliana
Published: August 2019

Introduction: Nowadays, Immunohistochemistry are one of the most important techniques in the histopathological diagnosis. Despite of handling and processing cautions, both of them may generate changes in the protein structure, masking antigens, preventing antibody identification. Among different antigen retrieval methods proposed by the literature, the humid heat with Steamer has been widely accepted for its simplicity, control and low cost.
Objective: In this paper a protocol for humid heat antigen retrieval use in bone tissue samples that had been previously fixed in formaldehyde, decalcified with ethylenediaminetetraacetic (EDTA ), and embedded in paraffin is proposed.
Materials and methods: Samples of pig’s bone that had been prepared with conventional techniques, from the collection of the pathology laboratory of the University of Valle were used. New fixed process was performed in glutaraldehyde and a steamer was used to enhance antigen exposure. The anti-TRAP DEKOs ®, mouse monoclonal antibody was used as primary antibody, and the KIT UltraVision LP Large Volume Detection System HRP Polymer ® was used as a secondary antibody.
Results: In all samples exposed to primary antibody in 1:20 and 1:40 dilutions immunostaining mononuclear cells compatible with preosteoclasts were observed; immunostaining multinucleated giant cells consistent with osteoclasts were described.
Conclusions: Humid heat for antigenic recovery is a reliable method for the recovery of bone antigen samples fixed with formaldehyde.
Prevalence of malocclusion in three planes of space in patients diagnosed with speech defects clinics at the graduate clinics of functional orthopedics and orthodontics, at the Universidad Cooperativa de Colombia
Authors: Peña Manuel , Rojas Maria del Pilar , Tirado Ángela , Benavides Berta , Hurtado Marta , Ruíz Adiela
Published: August 2019

Objective: To determine the prevalence of malocclusions in the three spaces planes in patients with dyslalias treated at the graduated functional orthopedics and orthodontic program at the Universidad Cooperativa de Colombia, Bogotá branch from January to July 2012.
Materials and Methods: A transversal descriptive study was held in study casts models and craniofacial radiographs from patients 5 years and older diagnosed with dyslalia. The Bjork method of malocclusion record was applied at the vertical, transversal and sagittal and space abnormalities. In order to determine the skeletal maxilomandibular relationship at the sagittal plane the McNamara analysis was applied. The statistical analysis for malocclusion was held trough analysis of frequency and percentage.
Results: The prevalence of malocclusions in patients diagnosed and evaluated was 68.3% sagittal, 51.2% vertical, 19.5% transversal and a 36.6% of space abnormalities.
Conclusions: Class I malocclusion had the higher prevalence, the relation between skeletal class II division I with increased over jet and dyslalia was not found.
Accessory parotid gland as an anatomical variation. Case report
Authors: Rivera Guillermo
Published: August 2019

The accessory parotid gland is a rare anatomical variation in human population (20%). This article presents a case report about the accessory parotid gland found during a dissection practice. Accessory parotid gland tumors have clinical importance for the relation with buccal nerve; also in tumor cases can be an afferent of perineural tumoral spread. This information may be important to anatomist, dentist and doctors interested in studying and exploring facial structures and tumor in oral region.
Early treatment of anterior open bite with functional orthopedic appliances. A case report
Authors: Valencia Ana María , Hurtado Ana María , Hernández Jesús Alberto
Published: August 2019

Anterior open bites are characterized by altered occlusal relationships. They cause discrepancies at the jaws that trigger a parafunctional muscular imbalance throughout the stomatognathic system.When this alteration is intervened early,  again of normal functions can be achieved but also intervention causes facial changes that improve the aesthetics of the patient. It is important to take into consideration the complexity and the multifactorial etiology of anterior open bites to achieve their correction and long-term clinical stability. Different therapeutic approaches have been described for the treatment of anterior open bites including: orthodontics, functional orthopedics and even surgical interventions. Here We present a clinical case of a seven-year-old male patient who consulted for orthopedic treatment of an anterior open bite. Clinical findings determined a Class II cephalometric malocclusion with anterior skeletal open bite, oral respiratory pattern and atypical swallowing. Orthopedic treatment was done using Simoes Network 2 (SN2) functional appliances. At the first year of follow-up facial and intraoral clinical changes were noted. During the second year of follow-up radiographic changes showed improvement in craniofacial and functional relationships.
Educational Intervention to reduce the gingival diseases in children of 8 and 9 years old belonging to a school of the municipality Manzanillo, Cuba
Authors: Paneque-Escalona Tahiris , Piquera-Palomino Yoannis , Infante-Tamayo Mauren , Merino-Noguera Yubisneyvis
Published: August 2019

Background: This paper depicts the results obtained from a community intervention activity carried out at “Mariana Grajales Coello” elementary School, in Manzanillo municipality within the period of January 2011 up to September 2012. The sample taken were students between 8 and 9 years old. By means affective – participative psychological techniques, which were used to orient in terms of prevention and health culture promotion, about the correct buccal hygiene, the elimination of dentobacterian plaques, as well as its incidence in gingival diseases, through out contact with parents and children to achieve modification in lifestyles and habits in he topic. It was confirmed the accuracy of games as formation and prevention techniques, and the assessment of bucal hygiene levels. The sample was of 85 students, previous consent of their parents. The data was collected in forms design to that effect, and the results are shown in a double – entrance graphics taking the percentage as point of analysis. The results underwent a deep analysis and it was possible to reduce the incidence of gingival diseases, and the number of healed patients was prolonged, also the level of knowledge increased in the third phase. The bucal hygiene habits avoid the presence of gingival diseases.
Normas para la presentación de artículos a la Revista Estomatología.
Authors: Revista Estomatología Comité Editorial
Published: August 2019

(No disponible)
Efectos del raspaje y alisado radicular a boca completa con azitromicina sobre los niveles de proteina C reactiva ultra sensible, parametros clínicos y microbiológicos periodontales. Ensayo clinico aleatorizado
Authors: Soto-Franco Jorge-Enrique , Aldana Heberth-Fernando , Navia Juan-Manuel , Peláez Melissa , Quisoboni Jorge , O'Meara María-Alexandra , Contreras Adolfo
Published: August 2019

RESUMENObjetivo: El propósito de este ensayo clínico controlado aleatorizado simpleciego fue determinar el efecto del raspaje y alisado radicular en una sesión adjunto a azitromicina oral, sobre los niveles de proteína C reactiva ultra sensible y otros biomarcadores sanguíneos, parámetros clínicos y microbiológicos periodontales en pacientes con periodontitis crónica tres meses después del tratamiento.
Materiales y Métodos: 49 sujetos con periodontitis crónica participaron en el estudio y fueron asignados aleatoriamente en dos grupos de 27 pacientes, el grupo intervención recibió raspaje y alisado radicular adjunto a azitromicina (RAR+Azi) 500 mg/día por cinco días, y el grupo control recibió raspaje y alisado radicular más placebo (RAR+Pb), ambos tratamiento en sesión única. Los grupos de periodontitisrecibieron un examen periodontal a boca completa, análisis de sangre y cultivos microbiológicos al inicio del estudio y tres meses después del tratamiento. Se incluyó un grupo referencia de 25 pacientes periodontalmente sanos tomando muestras sólo al inicio. La variable principal de desenlace fue la variación de la proteína C reactiva ultra sensible. Las variables de resultado secundarias fueron la variación de trigliceridos, colesterol de alta densidad (HDL), colesterol de baja densidad (LDL), glucosa en ayunas, profundidad al sondaje (PS) y composición microbiana.
Resultados: La terapia RAR+Azi no redujo significativamente los niveles plasmáticosde hsPCR, sin embargo, se observó una tendencia positiva (4,33 a 2,99 mg/L). Este grupo obtuvo también una mayor reducción en PS, índice arterial y frecuencia de detección de Porphyromonas gingivalis y Prevotela intermedia en comparación con el grupo RAR+Pb (p-0.05). Los otros parámetros sanguíneos no cambiaron significativamente. En contraste, el grupo control aumentó los niveles de hsPCR después dela terapia y en algunos casos se detectó un aumento de PS.
Conclusiones: La terapia de RAR+Azi ofrece a corto plazo beneficios clínicos y microbiológicos comparado a RAR solo. No se encontraron diferencias significativas en los niveles de hsPCR. Es necesariorealizar estudios con mayor tiempo de seguimiento para confirmar o rechazar la hipótesis que el tratamiento periodontal solo o con antibióticos generan efectos enlos niveles de hsPCR y otros marcadores de riesgo cardiovascular.
Palabras clave: Periodontitis crónica,proteína C reactiva, azitromicina, ensayoclínico aleatorizado.
Dietary intake and early childhood caries
Authors: Villegas Lina María , Villavicencio Judy Elena , Contreras Adolfo
Published: August 2019

Early childhood caries (ECC) affect children less than 71 months of age (1) and it represents a public health problem in countries worldwide (2–4). The mean ECC prevalence in United Nations Countries was 23.8% in children younger than 36 months and 57.3% in children aged 36 to 71 months. East Asia and Latin America and the Caribbean were the worst affected by ECC among children aged 36 to 71 months (5).
Dental caries pertains to a group of diseases that are estimated “complex” or “multifactorial,” with no single origin pathway (6) and it is resulted by the interaction of bacteria, mainly Streptococci mutans (SM) and  actobacilli (LB), and sugary foods on tooth enamel (6,7). Additionally, there must be a lack of oral hygiene and lack of use of fluoride (8).
Three-dimensional assessment of enamel and dentine in mouse molar teeth during masseter muscle hypofunction
Authors: Balanta-Melo Julián , Bemmann Maximilian , Ibacache Viviana Toro , Kupczik Kornelius , Buvinic Sonja
Published: August 2019

Background: Mouse molar is a widely used model for teeth development. However, the effect of masticatory function on enamel and dentine in adult individuals remains poorly understood. As reported, the unilateral masseter hypofunction induced by botulinum toxin type A (BoNTA) resulted in mandibular bone damage and signs of unilateral chewing in adult mice.
Objective: We aimed to assess the amount of enamel and dentine in the first molar (M1) during the unilateral masseter hypofunction in mice, using high-resolution X-ray microtomography (μCT) as threedimensional approach.
Materials and methods: Mandibles of adult BALB/c mice, located either in a Control-group (without intervention) or a BoNTA-group, were ex-vivo scanned using μCT. Treated individuals received each one BoNTA intervention in the right masseter, and saline solution in the left masseter (intra-individual control). Enamel and dentine from M1 were segmented, and volume, thickness and mesial root length were quantified.
Results: Enamel volume from treated side resulted unchanged after 2 weeks of unilateral masseter hypofunction. No differences for enamel volume were found between both sides of control individuals, and between these and samples from hypofunctional side in BoNTA-group. Enamel volume from saline-injected side was reduced when compared with experimental side (p<0,01). No differences in dentine volume, thickness of enamel and dentine, and mesial root length were found for any group.
Conclusion: The amount of enamel in hypofunctional molars remains unaffected after unilateral BoNTA intervention in the masseter, but contralateral side showed reduced enamel volume. Therefore, increased functional wearing during unilateral chewing after BoNTA intervention should be considered.
Los adultos mayores y su retiro del mercado laboral en México
Authors: Román-Sánchez Yuliana Gabriela , Montoya-Arce Bernardino Jaciel , Cuauhtémoc Gaxiola-Robles-Linares Sergio , Lozano-Keymolen Daniel
Published: August 2019

El artículo tiene como objetivo analizar el proceso de transición de la ocupación a la inactividad o viceversa de la población adulta mayor en México, y las variables que intervienen en dichos cambios. De manera concreta se estimaron las probabilidades de transición entre cuatro estados: 1) en actividad laboral, 2) pensionado o jubilado, 3) incapacidad permanente y 4) quehaceres del hogar. Se utilizaron datos de panel de la Encuesta Nacional de Ocupación y Empleo. Se estimaron matrices de transición de los cuatro estados para determinar la probabilidad de pasar a cada uno de éstos. Los resultados sugieren una relativa estabilidad de los adultos mayores ocupados. Los hombres tienen el doble de probabilidad que las mujeres de pensionarse o jubilarse, y se percibe el estancamiento de las mujeres en los quehaceres del hogar. El sexo y lugar de residencia influyen negativamente en el retiro de los adultos mayores del mercado laboral.
Evolución de la mortalidad materna en Argentina y Paraguay entre 1990 y 2015; políticas públicas, desigualdades y desafíos
Authors: Fantin María Alejandra , Zavattiero Claudina
Published: August 2019

El artículo tiene como objetivo analizar y comparar la evolución y situación actual de la mortalidad materna en Argentina y Paraguay, revisar las medidas de políticas públicas que cada país ha implementado y plantear los desafíos para lograr la reducción de las muertes maternas. Se aplican técnicas descriptivas y análisis comparativo a partir de los datos de anuarios estadísticos publicados por los Ministerios de Salud de ambos países. El estudio concluye que la muerte de una mujer por causas relacionadas al embarazo, parto o puerperio es un problema grave en Paraguay, cuya magnitud duplica los valores registrados en Argentina. En la zona de frontera de ambos países, los niveles de mortalidad adquieren valores similares evidenciando una inequitativa distribución de las muertes maternas sobre la superficie. Paraguay, a pesar de tener un mayor despliegue legal y programático que Argentina, debe considerar además de las causas directas, los obstáculos sociales y económicos.