The purpose of this investigation work is to stablish the mean characteristics of the mercury range in urine so 30 professors, 11 students and 3 technicians were evaluated through a written test and an urine sample was taken from them, then they were collected 100ml sterilizing bottles. After that, they were analyzed in the chemistry services unit of the faculty of chemistry of San Marcos university through the I ASTM D ﷓3223﷓95 FLAMELES ATOMICABSOPTION SPECTRO PHOTOMETRIC METHOD. The results were: Characteristics of the study sample: the age average of the sample was 38.50 years old (standard deviation =8%). The sample had predominance of male sex (84%) and (15.9%) of female sex only. The male sex people who were interviewed said the average of clinical work was 13.19 years (standard deviation =5.37) and the female sex people said 11 years (standard deviation =1.00) the male sex gro...

Since 1950, the investigations of Cox, Dean and Armstrong Iead to conclude that fluoride increased the resistance to dental caries but produced fluorosis in high concentrations (over 1 ppm ). Nowadays, in spite of the varied lines of research based in caries prevention methods, none of them has overcome Fluoride as a cheap, inoffensive and efficient method for this purpose. A review about FIuoride as an Early Childhood Dental Caries preventive method is presented, focused in fluoride varnishes. We also show the scheme of Fluoride application.

The purpose of this investigation work is to stablish the mean characteristics of the mercury range in urine so 30 professors, 11 students and 3 technicians were evaluated through a written test and an urine sample was taken from them, then they were collected 100ml sterilizing bottles. After that, they were analyzed in the chemistry services unit of the faculty of chemistry of San Marcos university through the I ASTM D ﷓3223﷓95 FLAMELES ATOMICABSOPTION SPECTRO PHOTOMETRIC METHOD. The results were: Characteristics of the study sample: the age average of the sample was 38.50 years old (standard deviation =8%). The sample had predominance of male sex (84%) and (15.9%) of female sex only. The male sex people who were interviewed said the average of clinical work was 13.19 years (standard deviation =5.37) and the female sex people said 11 years (standard deviation =1.00) the male sex gro...

Since 1950, the investigations of Cox, Dean and Armstrong Iead to conclude that fluoride increased the resistance to dental caries but produced fluorosis in high concentrations (over 1 ppm ). Nowadays, in spite of the varied lines of research based in caries prevention methods, none of them has overcome Fluoride as a cheap, inoffensive and efficient method for this purpose. A review about FIuoride as an Early Childhood Dental Caries preventive method is presented, focused in fluoride varnishes. We also show the scheme of Fluoride application.

Presently work the variations cefalométricas of the angles was studied formed by the planes base previous of the skull, palatine and mandibular in 60 adenoid patients that arrived to the departament of Odontopediatry and the service of Otorrinolaringología of the Naval Medical Center during the year 2001 who you/they were intervened surgically (adenoidectomía) The lateral cefalogramas of the 60 patients was studied with adenoid hipertrofia that were operated two years ago approximately of the adenoides who were selected bused on their clinical histories For tt was necessary the gathering of the x rays lateral surgzcal pre and the taking of the lateral x-rays after 2 years approximately, that is to say in the year 2003, of the surgical operation Where one kept in mind the analyses of Steiner and of Schwartz, for it was made it the lrnes cefalométricos,necessary for the present study, ...

Presently work the variations cefalométricas of the angles was studied formed by the planes base previous of the skull, palatine and mandibular in 60 adenoid patients that arrived to the departament of Odontopediatry and the service of Otorrinolaringología of the Naval Medical Center during the year 2001 who you/they were intervened surgically (adenoidectomía) The lateral cefalogramas of the 60 patients was studied with adenoid hipertrofia that were operated two years ago approximately of the adenoides who were selected bused on their clinical histories For tt was necessary the gathering of the x rays lateral surgzcal pre and the taking of the lateral x-rays after 2 years approximately, that is to say in the year 2003, of the surgical operation Where one kept in mind the analyses of Steiner and of Schwartz, for it was made it the lrnes cefalométricos,necessary for the present study, ...

El estudio se hizo en una muestra de 73 niños peruanos, 37 del sexo masculino y 36 del sexo femenino entre las edades de 6 a 13 años, portadores de maloclusiones, que solicitaron atención en la Clínica de la Facultad de Odontología de la Universidad Nacional Mayor de San Marcos. Se hicieron radiografías cefalométricas laterales que fueron analizadas manualmente tomándose los valores angulares SNA, SNB y ANB de STEINER y FMA de DOWNS. Concluimos que las maloclusiones fueron más frecuentes entre los niños de 8-9 años de edad sin discriminación de sexo; el ángulo ANB disminuyó con la edad sin variación de sexo; hubo predominio de la clase II esquelética de las edades de 8-9 años en ambos sexos; los pacientes niños que solicitaron atención en la clínica son principalmente del tipo hiperdivergentes sin discriminación de sexo.

El estudio se hizo en una muestra de 73 niños peruanos, 37 del sexo masculino y 36 del sexo femenino entre las edades de 6 a 13 años, portadores de maloclusiones, que solicitaron atención en la Clínica de la Facultad de Odontología de la Universidad Nacional Mayor de San Marcos. Se hicieron radiografías cefalométricas laterales que fueron analizadas manualmente tomándose los valores angulares SNA, SNB y ANB de STEINER y FMA de DOWNS. Concluimos que las maloclusiones fueron más frecuentes entre los niños de 8-9 años de edad sin discriminación de sexo; el ángulo ANB disminuyó con la edad sin variación de sexo; hubo predominio de la clase II esquelética de las edades de 8-9 años en ambos sexos; los pacientes niños que solicitaron atención en la clínica son principalmente del tipo hiperdivergentes sin discriminación de sexo.

La Universidad Nacional Mayor de San Marcos por su tradicional liderazgo debe asumir e reto de proponer los cambios, para e logro de la calidad y e mejoramiento continuo en e contexto de la globalización que vivimos. La Investigación dentro del Plan Estratégico de la Universidad es considerada fundamental para su desarrollo. En tal sentido, el Consejo Superior de Investigación y el Instituto de Investigación Estomatológica; llevaron a cabo el Seminario Taller "LA INVESTIGACIÓN ESTOMATOLÓGICA EN EL PROCESO DE ACREDITACIÓN" realizado los días 16 y 17 de octubre del 2003, en el Auditorio "Horacio Wells" de la Facultad de Odontología.

La Universidad Nacional Mayor de San Marcos por su tradicional liderazgo debe asumir e reto de proponer los cambios, para e logro de la calidad y e mejoramiento continuo en e contexto de la globalización que vivimos. La Investigación dentro del Plan Estratégico de la Universidad es considerada fundamental para su desarrollo. En tal sentido, el Consejo Superior de Investigación y el Instituto de Investigación Estomatológica; llevaron a cabo el Seminario Taller "LA INVESTIGACIÓN ESTOMATOLÓGICA EN EL PROCESO DE ACREDITACIÓN" realizado los días 16 y 17 de octubre del 2003, en el Auditorio "Horacio Wells" de la Facultad de Odontología.

The difficulty for lhe diagnosis of carieo lessions in temporal teelh has made lhis work improve in a closer diagnosis using the F1uorescence of!he Laser. As we know lhe most sensitive part for caries is the Oclusal surface, because of !he characleristic morphology lhat this piece presents, make lhe micro organisms and rest oí íoad to stay. Normally !he caries diagnosis on !he oclusal surface is determinated by a combination of different techniques lhat includes lhe intra oral exam wilh lhe use of an explorer and radiographies. The purpose oí lhis research is to determinate lhe efficiency oí lhe Visual and radiographics exam in lhe diagnosis oí incipient caries lesion and compare lhem wilh lhe results found wilh lhe fluorescence laser technique.

El evento de carácter académico - científico, desarrollado los días 21 y 22 de octubre del 2004, se enmarca dentro de los fines de la Universidad: la investigación, es decir la producción de conocimientos y la formulación de alternativas de solución a los problemas del país y de la sociedad en general. Una universidad que no investiga y no incentiva la investigación será incapaz de analizar su realidad y su entorno. Una universidad que no investiga, no contribuye al desarrollo de su país; una investigación que no se publica, es un esfuerzo que se desperdicia.

The difficulty for lhe diagnosis of carieo lessions in temporal teelh has made lhis work improve in a closer diagnosis using the F1uorescence of!he Laser. As we know lhe most sensitive part for caries is the Oclusal surface, because of !he characleristic morphology lhat this piece presents, make lhe micro organisms and rest oí íoad to stay. Normally !he caries diagnosis on !he oclusal surface is determinated by a combination of different techniques lhat includes lhe intra oral exam wilh lhe use of an explorer and radiographies. The purpose oí lhis research is to determinate lhe efficiency oí lhe Visual and radiographics exam in lhe diagnosis oí incipient caries lesion and compare lhem wilh lhe results found wilh lhe fluorescence laser technique.

El evento de carácter académico - científico, desarrollado los días 21 y 22 de octubre del 2004, se enmarca dentro de los fines de la Universidad: la investigación, es decir la producción de conocimientos y la formulación de alternativas de solución a los problemas del país y de la sociedad en general. Una universidad que no investiga y no incentiva la investigación será incapaz de analizar su realidad y su entorno. Una universidad que no investiga, no contribuye al desarrollo de su país; una investigación que no se publica, es un esfuerzo que se desperdicia.