Relación de la condición bucal y el desarrollo psicomotor en niños de 6 y 7 años / Relationship between oral condition and psychomotor development in children aged 6 and 7 years

Introducción: La salud oral es un problema actual en la sociedad, las medidas preventivas como técnicas de cepillado deben de ser acorde a la destreza motriz. Objetivo: Evaluar la relación entre las condiciones bucales y el desarrollo psicomotor en los niños de 6 y 7 años. Métodos: La muestra estuvo conformada por 30 niños en el rango de edad de 6 y 7 años, que acuden al colegio "Manuel Bonilla" (Lima, Perú). Estuvo dividida por 2 grupos, a los cuales se les enseñó dos técnicas de cepillado: técnica de Bass modificada y técnica de Fones. Se obtuvieron valores de condiciones bucales, según los niveles de índice gingival, índice de higiene y el nivel de severidad. Por otro lado, se adquirieron los niveles de psicomotricidad, evaluados mediante el test de Bruininks-Oseretsky. El análisis de los datos estadísticos se ejecutó con el programa SPSS y R. Resultados: Un grupo de 29 niños se incorporaron en la muestra y fueron analizados un total de 631 dientes. Los resultados demostraron una asociación positiva con un solo rango (índice de sangrado gingival) de condiciones bucales y aspectos psicomotores de niños entre 6 y 7 años. Adicionalmente, se encontró una asociación positiva entre la técnica de cepillado Bass Modifica y condiciones bucales óptimas. Conclusiones: Los resultados actuales sugieren una asociación marginal entre las variables estudiadas, que puede ser potencialmente más significativa con una ampliación sobre el número de muestra. A medida que el ser humano va desarrollando nuevas habilidades motoras, debería de tener un mejor dominio sobre las necesidades básicas de salud como la ponderación de una buena higiene bucal. Por lo tanto, es necesario recomendar técnicas de cepillado de acuerdo al nivel de desarrollo psicomotor del niño(AU)

Introduction: Oral health is a current problem in society; preventive measures such as brushing techniques must be according to motor skills. Objective: Evaluate the relationship between oral conditions and psychomotor development in children aged 6 and 7 years. Methods: The sample consisted of 30 children in the age range of 6 and 7 years, who attend "Manuel Bonilla" school (Lima, Peru). It was divided by 2 groups, which were taught two brushing techniques: Bass-modified technique and Fones technique. There were obtained values of oral conditions, according to the levels of gingival index, hygiene index and the level of severity. On the other hand, the levels of psychomotricity were acquired, evaluated by the Bruininks-Oseretsky test. The analysis of the statistical data was executed with the SPSS and R program. Results: A group of 29 children were incorporated into the sample and a total of 631 teeth were analyzed. The results demonstrated a positive association with a single range (gingival bleeding index) of oral conditions and psychomotor aspects of children between 6 and 7 years. Additionally, a positive association was found between the Bass Modifica brushing technique and optimal oral conditions. Conclusions: The current results suggest a marginal association between the variables studied, which may be potentially more significant with an increase in the sample number. As humans develop new motor skills, they should have a better command of basic health needs such as weighing good oral hygiene. Therefore, it is necessary to recommend brushing techniques according to the level of psychomotor development of the child(AU)

Urgencias estomatológicas durante la pandemia de la COVID-19. Policlínico 2 de Manzanillo / Stomatological emergencies during the COVID-19 pandemic. Polyclinic 2 of Manzanillo / Emergências estomatológicas durante a pandemia COVID-19. Policlínica 2 de Manzanillo

RESUMEN La caries dental y sus complicaciones, las afecciones del periodonto y los procesos infecciosos post-extracción constituyen las causas más comunes por lo que los pacientes asisten a los servicios de urgencia estomatológica. Estudiar su incidencia y los recursos que demandan sus tratamientos es necesario para organizar los servicios estomatológicos. Identificar las urgencias estomatológicas de acuerdo a las causas que lo originan en el Policlínico 2 de Manzanillo entre abril y septiembre de 2020, durante la situación epidemiológica causada por la COVID-19, ha sido el objetivo de nuestro trabajo. Utilizamos el método de estudio descriptivo transversal en pacientes que acudieron por urgencia a los servicios estomatológicos del policlínico 2 de Manzanillo entre los meses abril a septiembre del 2020. El universo estuvo constituido por 709 pacientes. El mes de mayor afluencia de urgencias estomatológicas fue mayo con 254 pacientes, predominando entre ellos el sexo femenino con 51,9%, mientras que la caries dental y sus complicaciones fue la causa por la que más acudieron los pacientes, con un 82,5%. De las enfermedades pulpares fue la hiperemia pulparla que predominó con 361 pacientes para un 61,7%, y de las enfermedades periapicales fue el absceso alveolar con102 casos, para un 17,4%. Durante la COVID-19 los servicios estomatológicos mantuvieron su vitalidad a través de las consultas de urgencias estomatológicas, la caries dental y las afecciones del periodonto fueron las enfermedades de mayor incidencia, siendo la hiperemiapulpar la que predomino dentro de la patología pulpar y el absceso alveolar agudo dentro de la periapical.

ABSTRACT Tooth decay and its complications, periodontal conditions and post-extraction infectious processes are the most common causes so patients attend stomatological emergency services. Studying their incidence and the resources demanded by their treatments is necessary to organize stomatological services. Identifying the stomatological emergencies according to the causes that originate it in the Polyclinic 2 of Manzanillo between April and September 2020, during the epidemiological situation caused by COVID-19, has been the objective of our work. We used the cross-sectional descriptive study method in patients who went to the stomatological services of polyclinic 2 in Manzanillo for emergencies between April and September 2020. The universe consisted of 709 patients. The month of greatest influx of stomatological emergencies was May with 254 patients, predominating among them the female sex with 51.9%, while dental caries and its complications was the cause for which more patients attended, with 82.5%. Of the pulp diseases, pulp hyperemia predominated with 361 patients for 61.7%, and of the periapical diseases it was the alveolar abscess with 102 cases, for 17.4%. During COVID-19, stomatological services maintained their vitality through stomatological emergency consultations, dental caries and periodontal conditions were the diseases with the highest incidence, with pulp hyperemia being the one that predominated within the pulp pathology and acute alveolar abscess within the periapical.

RESUMO A cárie dentária e suas complicações, condições periodontais e processos infecciosos pós-extração são as causas mais comuns para que os pacientes frequentem serviços de emergência estomatológicas. Estudar sua incidência e os recursos exigidos por seus tratamentos é necessário para a organização de serviços estomatológicos. Identificar as emergências estomatológicas de acordo com as causas que a originam na Policlínica 2 de Manzanillo entre abril e setembro de 2020, durante a situação epidemiológica causada pelo COVID-19, tem sido o objetivo do nosso trabalho. Utilizou-se o método de estudo transversal descritivo em pacientes que foram aos serviços estomatológicos da policlínica 2 em Manzanillo para emergências entre abril e setembro de 2020.O universo era composto por 709 pacientes. O mês de maior fluxo de emergências estomatológicas foi maio com 254 pacientes, predominando entre eles o sexo feminino com 51,9%, en quanto a cárie dentária e suas complicações foi a causa para a qual mais pacientes compareceram, com 82,5%. Das doenças da polpa, a hiperemia da polpa predominou com 361 pacientes para 61,7%, e das doenças periapical foi o abscesso alveolar com 102 casos, para 17,4%. Durante o COVID-19, os serviços estomatológicos mantiveram sua vitalidade por meio de consultas de emergência estomática, cárie dentária e condições periodontais foram as doenças com maior incidência, sendo a hiperemia da polpa aquela que predominou dentro da patologia da polpa e abscesso alveolar agudo dentro do periapical.

Relación entre índice CPO-D y limitación al sonreír en escolares de la Parroquia «El vecino», en Cuenca, Ecuador / Relationship between the CPO-D index and limitation when smiling in schoolchildren from «El Vecino¼ Parish in Cuenca, Ecuador

RESUMEN Introducción: Las afecciones bucales informadas con mayor prevalencia a nivel mundial son: la caries dental, las periodontopatías y las maloclusiones, en ese orden, según la Organización Mundial de la Salud (OMS). La caries dental es considerada como una enfermedad multifactorial, dinámica y crónica, en la cual intervienen factores extrínsecos que pueden estar asociados a la enfermedad. Objetivo: Relacionar el índice de dientes cariados, perdidos y obturados y la limitación al sonreír en escolares de 12 años de la Parroquia «El vecino» en la ciudad de Cuenca, Ecuador, en el año 2016. Métodos: Se realizó un estudio descriptivo, transversal, relacional y retrospectivo. La muestra estuvo conformada por 279 fichas registradas en la base de datos del Departamento de Investigación de la carrera de Odontología de la Universidad Católica de Cuenca, pertenecientes al estudio del Mapa Epidemiológico de Salud Bucal, 2016. Resultados: El 100 % de la muestra presentó alguna experiencia de caries, mientras que el 77,8 % no presentó limitación al sonreír, lo que demuestra una relación de dependencia moderada entre el índice de dientes cariados, perdidos y obturados y la limitación al sonreír. Conclusiones: Se informó un nivel de gravedad del índice de dientes cariados, perdidos y obturados muy alto en la cuarta parte de la muestra; la relación entre el índice de dientes cariados, perdidos y obturados y la limitación al sonreír presentó una dependencia moderada entre las dos variables en ambos sexos.

ABSTRACT Introduction: dental caries, periodontal diseases and malocclusions are, in that order, the reported oral conditions with the highest prevalence worldwide according to the World Health Organization (WHO). Dental caries is considered a multifactorial, dynamic and chronic disease, in which intervene extrinsic factors that may be associated with the disease. Objective: to relate Decayed, Missing, and Filled Teeth Index with the limitation when smiling in 12-year-old schoolchildren from "El Vecino" Parish, in Cuenca city, Ecuador, 2016. Methods: a descriptive, cross-sectional, relational and retrospective study was carried out. The sample consisted of 279 files registered in the database of the Research Department of the Dentistry career from the Catholic University of Cuenca, belonging to the study of the Epidemiological Map of Oral Health, 2016. Results: 100% of the sample had some experience of caries, while 77.8% showed no limitation when smiling, which demonstrates a moderate dependence relationship between the Decayed, Missing, and Filled Teeth Index and the limitation when smiling. Conclusions: a very high level of severity of the Decayed, Missing, and Filled Teeth Index was reported in a quarter of the sample; the relationship between the Decayed, Missing, and Filled Teeth Index and the limitation when smiling had a moderate dependence between the two variables in both genders.

Fatores relacionados à cárie dentária em escolares de 15-19 anos de Manaus, Amazonas: um estudo transversal / Associated factors of tooth decay in 15-19-year-old students of Manaus, Amazonas: a cross-sectional study

Objetivo: Avaliar a experiência de cárie dentária e fatores relacionados em adolescentes de 15 a 19 anos de uma escola pública de Manaus-AM. Métodos: O delineamento do estudo foi do tipo transversal, cuja amostra foi constituída por 103 escolares. Para avaliar a cárie dentária foram realizados exames clínicos utilizando o Índice CPO-D (cariados, perdidos, obturados por dente) para avaliar presença de cárie dentária em ficha individual. Também foram aplicados dois questionários referentes aos hábitos de higiene bucal e à percepção da presença de dor dentária nos últimos seis meses e impacto das condições de saúde bucal na vida diária. O Índice Significant Caries Index (SIC) foi utilizado para avaliar a presença da doença cárie dentária em um terço da população com maior CPO-D. Para análise dos dados foram utilizados os programas Microsoft Excel®e Statistical Package for the Social Sciences (SPSS), adotando o nível de significância de 0,05. Para verificar a hipótese de associação entre variáveis foi utilizado o teste Qui-quadrado de Pearson. Resultados: A média do índice CPO-D encontrada foi de 1,2 considerada baixa; sendo o componente cariado (C) o responsável pela maior parte do Índice CPO-D. O Índice SIC foi de 4,4 evidenciando que um terço da amostra apresentava Índice CPO muito superior à média encontrada, mostrando desigualdade na distribuição da doença no grupo estudado. A frequência de escovação por 3 vezes ao dia foi relatada pela maioria dos adolescentes (57,3%). No entanto, sobre a frequência de consulta dos adolescentes ao cirurgião-dentista, constatou-se que 48,6% dos estudantes nunca procuraram atendimento. Houve relação estatisticamente significante entre presença de cárie dentária e irritabilidade causada pelos dentes (p = 0,011) e dificuldade para falar (p = 0,007). Conclusão: Este estudo apontou baixa experiência de cárie dentária, sendo a frequência de escovação por 3 vezes ao dia relatada pela maioria dos adolescentes. Houve relação estatisticamente significante entre presença de cárie dentária e as questões sobre incômodo ao escovar os dentes e dificuldade para falar.

Aim:To evaluate the experience of tooth decay and its associated factors in teenagers ranging from 15 to 19 years of age in a public high school in Manaus, Amazonas, Brazil. Methods: This study used a cross-sectional design, whose sample amount was a total of 103 students. To evaluate tooth decay, clinical exams were performed using the DMF-T index (decayed, missing, and filled teeth) to assess the presence of tooth decay (DMF-T) on an individual data record. Two questionnaires were applied regarding oral hygiene habits, perception of the presence of dental pain in the last six months, and impact of oral health conditions on daily life. The Significant Caries Index (SIC Index) was used to assess the presence of tooth decay disease in one third of the population with the highest DMF-T. For data analysis, the Microsoft Excel® and Statistical Package for the Social Sciences (SPSS) programs were used, adopting a significance level of 0.05. Pearson's chi-square test was used to verify the hypothesis of association between variables. Results:The DMF-T index was 1.2, which is considered low, while the carious component (C) was the most prevalent of the DMF-T Index. The SIC Index was 4.4, showing that one third of the sample had a DMF-T Index that was much higher than the average, revealing an unequal distribution of the disease within the studied group. The frequency of brushing teeth 3 times a day was reported by most teenagers (57.3%). However, regarding the frequency of visits to the dentist, it was found that 48.6% of the students had never sought out dental care. There was a statistically significant relationship between the presence of tooth decay and questions about irritability caused by teeth (p = 0.011) and difficulty in speaking (p = 0.007). Conclusion:This study showed a low experience of tooth decay, with the frequency of brushing 3 times a day reported by most adolescents. There was a statistically significant relationship between the presence of tooth decay and difficulty in speaking.

Revisión de la literatura: composición salival y su relación con caries dental en embarazadas / Review of the literature: salivary composition and its relationship with dental caries in pregnant women

La saliva es un fluido complejo muy importante en las funciones de la cavidad bucal. El embarazo es un estado normal en el que el embrión se forma y evoluciona durante nueve meses. En este proceso la mujer sufre una serie de cambios fisiológicos y psicológicos. Entre ellos, tiene modificaciones en la saliva y, por consiguiente, en el flujo, pH y concentración de proteínas salivales, que desempeñan un papel importante en la protección contra la infección en los seres humanos. Su nivel en la cavidad oral está sujeto a constantes fluctuaciones que dependen de numerosos factores. El embarazo genera adaptaciones en la fisiología femenina que pueden repercutir en la salud bucal de la gestante. Las afecciones bucales más frecuentes son la caries dental y la gingivitis. Si estas afecciones no son tratadas a tiempo, pueden repercutir en la salud del futuro bebé. Se realizó una revisión bibliográfica con el objetivo de conocer acerca de los componentes de la saliva y su relación con caries dental en las embarazadas, considerando los tres trimestres de gestación (AU)

Saliva is a complex fluid very important in the functions of the oral cavity. Pregnancy is a normal state in which the embryo forms and evolves for nine months. In this process, women undergo a series of physiological and psychological changes. Among them, it has modifications in saliva and, consequently, in the flow, pH and concentration of salivary proteins, which play an important role in protecting against infection in humans. Its level in the oral cavity is subject to constant fluctuations that depend on numerous factors. Pregnancy generates adaptations in female physiology that can affect the oral health of the pregnant woman. The most common oral conditions are dental caries and gingivitis. If these conditions are not treated in time, they can affect the health of the future baby. A bibliographic review was carried out with the objective of knowing about the components of saliva and its relationship with dental caries in pregnant women, considering the three trimesters of gestation (AU)

A descriptive study of the regional and time-point changes in the Filipinos' internet search for tooth decay and toothache

Background@#The Philippines has one of the highest prevalence of untreated tooth decay (TD) in the world. Toothache (TA) is a common sequela of chronic and untreated TD. Google Trends (GT) offers an inexpensive and fast method of assessing search trend for these health conditions. @*Objectives@#This study aimed to characterize the regional and time-point variations in the Filipinos' internet searches for TD and TA. @*Methods@#A descriptive analysis of a search query done on Google Trends using the search terms TD and TA was done. The parameters were constrained to include only data from the Philippines, from November 2009 to November 2019, under the health category, and the web search database. @*Results@#The top three regions that had the highest searches for TA were MIMAROPA (100%), ARMM (100%), and Caraga (82%), while CAR (27%), Metro Manila (27%), and Ilocos Region had the highest search results for TD. From 2009 (19.85%) the searches for TA progressively increased until 2019 (92.61%), while the searches for TD remained comparable from 2009 (25.09%) to 2019 (25.98%). @*Conclusion@#The results of this study reveal regional and time-point differences in the Filipinos' search interests for TD and TA.

Assessment of adherence to preventive treatment of plaque-induced oral diseases using sugar-free gums: a controlled clinical trial / Evaluación de la adhesión al tratamiento preventivo de enfermedades bucales inducidas por placa bacteriana mediante el uso de gomas de mascar sin azúcar: ensayo clínico controlado

Abstract Introduction: the aim of this study was to assess the adherence to a preventive treatment of plaque-induced oral diseases using two sugar-free gums, establishing their effect on cariogenic bacteria counts as a biological marker of treatment response. Methods: a double-blind, randomized, parallel-group, controlled intervention study was conducted in 96 young adult university students in an experimental period of 30 days. Participants were distributed into two groups and given a chewing gum with either pentitol or hexitol + CPP-ACP complex to be taken three times a day for 20 minutes after conventional oral hygiene. Saliva samples were collected at baseline to evaluate counts of Streptococcus mutans (SM) and Lactobacillus spp. A survey was conducted at the end of the experimental period to assess the levels of adherence to treatment, remeasuring bacterial counts. Results: SM counts showed statistically significant differences between the study groups at the end of the experimental period, with a decreasing tendency in both groups. Intragroup difference was observed in patients who took pentitol gum with a marked reduction in SM counts. Conclusion: the final estimate of adherence to treatment showed that the type of chewing gum patients were given had no influence and therefore such gums can be used, considering the therapeutic agents that most contribute to patient's particular case and preferences.

Resumen Introducción: el objetivo consistió en evaluar la adherencia a un tratamiento preventivo de enfermedades bucales inducidas por placa bacteriana, utilizando dos gomas de mascar sin azúcar y establecer su efecto sobre recuentos de bacterias cariogénicas como indicador biológico de los efectos del tratamiento. Métodos: se realizó un estudio de intervención, doble ciego, de grupos paralelos, aleatorizado controlado, en 96 adultos jóvenes universitarios, en un período experimental de 30 días. Los participantes fueron distribuidos en dos grupos con asignación de una goma de mascar con pentitol o con hexitol + complejo CPP-ACP que debían ser consumidas 20 minutos/tres veces al día después de la higiene oral convencional. Al inicio del studio fueron recolectadas muestras de saliva para evaluar recuentos de Estreptococos del grupo mutans (SM) y Lactobacillus spp. Al finalizar el período experimental, se realizó una encuesta para evaluar los niveles deadherencia al tratamiento y los recuentos bacterianos fueron medidos nuevamente. Resultados: Los recuentos de SM mostraron diferencias estadísticamente significativas entre los grupos de estudio al final del período experimental, con tendencia hacia la disminución en ambos grupos. Se observó diferencia intragrupo en los pacientes que consumieron la goma de mascar con pentitol, con marcada reducción de los recuentos de SM. Conclusión: la estimación final de la adherencia al tratamiento mostró que el tipo de goma de mascar asignada al paciente no tuvo influencia y, por lo tanto, estas pueden ser utilizadas teniendo en cuenta los agentes terapéuticos que más aporten al caso particular del paciente y las preferencias del mismo.

Casein phosphopeptide-amorphous calcium phosphate nanocomplex (CPP-ACP) in dentistry: state of the art / Nanocomplejo de fosfopéptido de caseína-fosfato de calcio amorfo (CPP-ACP) en Odontología: estado del arte

ABSTRACT Saliva and external agents containing different concentrations of sodium fluoride (NaF) promote the dental remineralization process. However, these resources may not be sufficient to counteract the multiple factors involved in the process of dental caries, especially in high-risk patients. There are alternatives that have been extensively researched, such as casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) which provides essential ions, like phosphate and calcium, acting as an adjuvant in the remineralization process. Manufacturers of CPP-ACP-based products also suggest that it can produce desensitizing effects. This nanocomplex has been used experimentally with some dental cements and adhesive systems, but it is important to clarify the effects of this procedure, and the remineralizing/desensitizing advantages it offers. The objective of this topic review was to present the state of the art on CPP-ACP nanocomplex. In terms of dental caries prevention, this remineralizing option is not better than NaF. CPP-ACP provides a dental desensitizing action, but it is temporary, similar or less effective than other alternatives such as potassium nitrate or NaF. The experimental incorporation of CPP-ACP into dental cements should be controlled for not to compromise the physico-chemical properties of the material. The use of dental products based on this nanocomplex as dental surface pretreatment may decrease the bond strength of adhesive materials, but this effect is material dependent.

RESUMEN La saliva y agentes externos que contienen diferentes concentraciones de fluoruro de sodio (NaF) favorecen el proceso de remineralización dental. No obstante, estos recursos podrían no ser suficientes para contrarrestar los múltiples factores involucrados en el proceso de caries dental, especialmente en pacientes con alto riesgo. Existen alternativas que han sido ampliamente investigadas, como el fosfopéptido de caseína-fosfato de calcio amorfo (CPP-ACP) que aporta iones esenciales como fosfato y calcio, actuando como coadyuvante en el proceso de remineralización. Los fabricantes de productos basados en CPP-ACP también sugieren que este es capaz de generar efectos desensibilizantes. Este nanocomplejo ha sido utilizado de forma experimental con algunos cementos dentales y sistemas adhesivos, pero es importante esclarecer los efectos de dicha incorporación y las ventajas remineralizantes/desensibilizantes que ofrece esta alternativa. El objetivo del presente artículo de revisión de tema consistió en presentar el estado del arte sobre el nanocomplejo CPP-ACP. En términos de prevención de caries dental, esta opción remineralizante no es superior al NaF. El nanocomplejo ejerce acción desensibilizante dental, pero esta es transitoria, similar o inferior a otras alternativas como nitrato de potasio o NaF. La incorporación experimental de CPP-ACP en cementos dentales debe ser controlada para no comprometer las propiedades fisicoquímicas del material. La utilización de productos dentales a base de este nanocomplejo como pretratamiento de la superficie dental puede disminuir la resistencia de unión de materiales adhesivos, pero este efecto es material-dependiente.

Prevalence and determinants of dental caries among primary school children in urban area of Kancheepuram district, Tamil Nadu: a cross sectional study

Background: Dental caries is a preventable multi factorial disease which shows increase in prevalence over last five decades in India. In order to reduce its magnitude and for effective prevention and control, the risk factors and distribution should be well known. This study was planned with the objective of assessing the prevalence and determinants of dental caries among primary school children in an Urban area of Kancheepuram district, Tamil Nadu, India. Methods: This school based cross sectional study was carried out between November 2017 and February 2018 using a sample size of 430 selected from two schools by simple random sampling. Data were collected using a pre-tested, structured questionnaire, which were analyzed using SPSS version 16.0 and presented using descriptive and analytical statistics. Results: Among the study participants, 52.9% had dental caries. Plaque accumulation was noted in 46.2%. About 74% were taking junk foods daily. About 47.1% children were rinsing their mouth daily and 34.6% were brushing more than once daily. Factors found to be protective against dental caries were high socio economic class and daily mouth rinsing habit. Odds of getting dental caries was more among children with visible dental plaque, daily junk foods intake, brushing once daily and failing to brush after foods. Conclusions: Dental caries is a high prevalent, preventable disease affecting both young and old aged individuals that can be mitigated by health education activities. Proper oral hygiene can prevent dental caries. Hence more importance should be given for oral hygiene and behavioral changes in dietary habits.

The effect of educational program based on the health belief model in adopting dental caries preventive behaviour’s in pregnant mothers referring to health treatment centers in Ardabil

Background: Oral and dental diseases are one of the most common diseases and oral hygiene is one of the important branches of public health which is more important during pregnancy. This study aimed to determine the effect of the educational intervention on oral health behaviours in pregnant mothers.Methods: In this intervention study, 170 pregnant women in the city of Ardabil were randomly selected and divided into two case and control groups (each of 85 people). The data were collected through a researcher-made questionnaire based on the Health Belief Model of oral health care and then they were analysed using the SPSS version 19.Results: Demographic data in both case and control groups were approximately the same. The mean of health belief model variables increased significantly after intervention (P 0.05). Mothers also obtained the most information on the prevention of dental caries before intervention through television programs but after the intervention, they obtained the most information through the curriculum. In this study, before the intervention, 23.7% of mothers used dental floss once a day. After training, this amount reached 40.8% of mothers.Conclusions: Findings showed that educational intervention based on the health belief model can promote oral health behaviours. Therefore, it is recommended to conduct health education courses at the community level.

Prevalencia de placa dentobacteriana y caries dental en el primer molar permanente en una población escolar del sur de la Ciudad de México / Prevalence of plaque and dental decay in the first permanent molar in a school population of south Mexico City

Resumen Introducción: El primer molar permanente (PMP) es susceptible de caries a partir de su erupción por su anatomía y porque ha estado expuesto antes que otros dientes. Métodos: Estudio observacional, prolectivo, transversal, comparativo, en 194 escolares con una media de edad de 9.9 ± 1.8 años. La valoración de la placa dentobacteriana (PDB) se realizó con el índice de O'Leary, y la experiencia de caries con los índices CPOS (suma de superficies dentales cariadas, perdidas/extraídas y obturadas) y CPOD (suma de dientes cariados, perdidos/extraídos y obturados). Resultados: La prevalencia de PDB en el PMP fue del 99.4%, y la de caries, del 57.2%. El valor del CPOD fue de 1.4 ± 1.4. La experiencia de caries por superficie dental en los niños de 7.10 años de edad fue de 2.2 ± 2.3 y son 7.9 veces más susceptibles a desarrollar lesiones (razón de momios: 8.9; intervalo de confianza al 95%: 4.1-19.5; p < 0.0001) que los menores de esa edad. Se detectó asociación con la variable edad y los valores de los índices de experiencia de caries; aun cuando estas son débiles en el caso del CPOS (r = 0.439), el modelo permitió explicar el 19% de la asociación, y el 22% para el CPOD (r = 0.464). Conclusiones: La caries dental se desarrolla rápidamente en los PMP. En general, no se le da la importancia debida porque se desconoce que se presenta en un diente permanente.

Abstract Background: The first permanent molar is susceptible to acquire tooth decay since its eruption, due to its anatomy and because it has been exposed before other teeth. Method: An observational, prolective, transversal and comparative study in 194 students, with an average age of 9.9 ± 1.8 years. The evaluation of the dentobacterial plate (DBP) was analyzed using the O'Leary index and the tooth decay experience with the DMFS (sum of decayed, missing, extracted and filling dental surfaces) and DMFT (sum of decayed, missing, extracted and filling per tooth) indexes. Results: The prevalence of DBP in the first permanent molar was of 99.4% and tooth decay of 57.2%. The value of DMFT was 1.4 ± 1.4. The tooth decay experience was higher in children from 7.10 years old with a value of 2.2 ± 2.3, who are 7.9 times more likely to develop lesions than younger children (odds ratio: 8.9; 95% confidence interval: 4.1-19.5; p < 0.0001). We found an association between age and the values of the tooth decay experience indexes; even though these were weak in the case of DMF (r = 0.439), the model allowed to explain 19% of the association, and 22% for DMFT (r = 0.464). Conclusions: Tooth decay develops rapidly in the first permanent molars; however, it does not receive the necessary care because it is usually unknown that it is a permanent tooth.

Efecto anticariogénico del café / Coffee Cariogenic Effects

El café es una bebida que cuando se consume solo, sin azúcar y de forma natural es muy rica en beneficios y propiedades protectoras, preventivas, curativas y medicinales. Se estima que al menos el 30% de la población mundial consume una vez al día una taza de café y en Cuba es una de las más comúnmente consumidas. Además de la cafeína y otros múltiples componentes, el café es abundante en compuestos fenólicos y melanoidinas, de efectos beneficiosos para la salud bucal y general de la población; sin embargo, el consumo de café se asocia tradicionalmente a un hábito que no beneficia la salud, pero motivados por esa interrogante se hizo una revisión de la literatura más reciente digital e impresa, de 28 referencias indizadas en las bases de datos disponibles, con el objetivo de valorar los beneficios asociados a la salud bucal, con especial énfasis sobre la caries dental.

Coffee is a beverage that when is consumed alone, without sugar, is a natural beverage rich in benefits and protective, preventive, curative and medicinal properties. It is estimated that at least 30% of the world population consumes a cup of coffee once a day and, in Cuba it is considered one of the most commonly consumed. In addition to caffeine and other multicomponent, coffee is rich in phenolic compounds and melanoidins, beneficial effects for oral and overall health of the population; however, coffee consumption has traditionally been associated with a habit that does not benefit health, but motivated by that question was a review of the latest digital and printed literature 28 references indexed in the databases available at our fingertips to try to take part on the benefits associated with oral health with special emphasis on dental caries.

Prevalencia y algunos factores de riesgo de caries dental en el primer molar permanente en una población escolar de 6 a 12 años de edad / Incidence and risk factors of tooth decay on the first permanent molar in a schoolchildren population aged 6 to 12 years old

Introducción: La Organización Mundial de la Salud reporta que la caries en México afecta a 48 por ciento de los menores de 5 años y que 93 por ciento de los niños de 15 años la padecen. En conjunto se estima que 99 por ciento de la población ha tenido caries y que esta enfermedad es la causa más importante de la pérdida de dientes antes de los 35 años de edad. La pérdida principal la constituyen los primeros molares permanentes, estos órganos dentales acompañan a la dentición primaria en la boca de un niño transformando la oclusión de la primera dentición a la dentición mixta. El propósito de este trabajo fue identifi car la prevalencia y algunos factores de riesgo de caries en el primer molar permanente en una comunidad escolar del municipio de Tultitlán, Estado de México. Métodos: Estudio observacional, prolectivo, transversal y descriptivo en una población de 560 escolares con una media de edad de 9.0 (± 2.0), mediana de 9.0 (6-12 años). Se valoró la presencia de placa dentobacteriana con el índice O’Leary y la experiencia de caries con los índices CPOD y CPOS. Resultados: La prevalencia de caries en el primer molar permanente en la población de estudio fue de 25.6 por ciento, el valordel índice CPOS fue de 1.6 ± 2.7; CPOD de 1.0 ± 1.4; los más afectados son los molares inferiores en 30.6 por ciento (n = 343) con un CPOS 1.0 (± 1.7) vs. los superiores 20.5 por ciento (n = 226) con un CPOS de 0.6 (± 1.4). De los riesgos analizados, el factor tiempo de exposición a la PDB medido a través de la edad mostró que los escolares ≥ 8 años tienen 7.1 veces más riesgo de presentar caries en el PMP que los menores de esa edad, siendo esta diferencia clínica estadísticamente significativa (RM = 8.1; IC95 por ciento 4.4-14.7, p < 0.0001). Conclusiones: Nuestra población de estudio muestra una similitud en los índices de caries en la dentición permanente con la literatura científica.

Introduction: The World Health Organization reports that tooth decay inMexico aff ects 48% of children under 5 years of age and 93% of childrenunder 15. Overall it is estimated that 99% of the population has hadtooth decay and that this disease is the most important cause of tooth lossbefore age 35. The greatest loss is of the fi rst permanent molars, thesedental organs represent the primary dentition in the mouth of a child,transforming with its presence the primary occlusion in mixed. Therefore,the purpose of this study was to identify the prevalence and some risk factorsfor tooth decay in the fi rst permanent molar in a school community in themunicipality of Tultitlan, State of Mexico. Methods: An observational,prolective, transverse and descriptive study in a population of 560 studentswith a mean age of 9.0 (± 2.0), median of 9.0 (6-12 years), the presenceof dental plaque (biofi lm) was assessed with the O’Leary index and theexperience of tooth decay with the DMFT and DMF indexes. Results:The prevalence of tooth decay in the fi rst permanent molar in the studypopulation was 25.6%, the value of the DMF index was 1.6 ± 2.7; DMFTof 1.0 ± 1.4; the most aff ected were the lower molars with 30.6% (n = 343)with a DMF 1.0 (± 1.7) vs. the upper ones with 20.5% (n = 226) with aDMF of 0.6 (± 1.4). Of the risks analyzed, the factor «time of exposure toPDB¼ measured through age showed that, schoolchildren ≥ 8 years of ageare 7.1 times more likely to have tooth decay in the fi rst molar than childrenunder that age, this diff erence is clinically and statistically signifi cant (RM= 8.1, IC95% 4.4-14.7, p < 0.0001). Conclusions: Our study populationshows a similarity in the tooth decay indexes in permanent dentitionwith the one indicated in the scientifi c literature; of the risks analyzed,the exposure time to dental plaque (biofi lm) was the one that showed astatistically signifi cant diff erence.

Salivary Iron (Fe) Ion Levels, Serum Markers of Anemia and Caries Activity in Pregnant Women / Níveis de íon ferro (Fe) salivar, marcadores séricos de anemia, e atividade de cárie em mulheres grávidas

Abstract Introduction Anemia is a very frequent event among pregnant women. There are evidences of differences in the incidence of dental caries between pregnant and nonpregnant women, but the relationship between salivary iron (Fe) and serummarkers of anemia and caries development has not been investigated. Objective To evaluate the correlation between salivary (Fe) and serum iron (Fe, ferritin and hemoglobin) parameters in pregnant women with the development of dental caries. Methods A prospective cohort was conducted with 59 women. The outcome of interest was represented by new dental caries lesions during pregnancy, using the Nyvad criteria. Pregnant women were evaluated at three clinical times: up to the 16th week of gestational age (GA) (T1), in the last trimester of pregnancy (T2), and postpartum (T3), at the Mother and Child Unit ofUniversityHospital of the Universidade Federal doMaranhão.A stimulated saliva sample was collected for biochemical analysis of salivary Fe, and a blood sample was collected early in the morning. The correlation between salivary and serum Fe was evaluated through the Pearson correlation test. Analysis of variance (ANOVA) and Kruskal-Wallis were used to compare the means of anemia parameters at different times. The Student's t and Mann-Whitney tests were used to compare the anemia parameters between the groups of pregnant women (with and without new caries lesions). Results SerumFe concentrationswere higher in the first trimester of pregnancy and lower after delivery (p = 0.036). It was also observed that the ferritin concentrations were higher in the first trimester and lower at the end of gestation (p = 0.011). Therewas no association between the expositions of salivary iron and anemia, and the development of dental caries. There was a positive correlation between serum Fe in T1 and salivary Fe in T2 (p < 0.05). Conclusion The serummarkers of anemiaweremore prevalent in the last trimester of pregnancy.

Resumo Introdução A anemia é um evento muito frequente entre mulhres grávidas. Existem evidências de diferenças na incidência de cárie dentária entre mulheres grávidas e não grávidas,mas a relação entre o íon ferro (Fe) salivar, osmarcadores séricos de anemia e o desenvolvimento de cárie não foi investigada. Objetivo Avaliar a correlação entre os parâmetros salivares (Fe) e séricos (Fe, ferritina e hemoglobina) em gestantes e o desenvolvimento de cárie dentária. Métodos Uma coorte prospectiva foi conduzida com 59 mulheres. O desfecho de interesse foi representado por novas lesões de cárie durante a gravidez, medido pelo critério Nyvad. Mulheres grávidas foram avaliadas em três tempos clínicos: até a 16ª semana de idade gestacional (IG) (T1), no último trimestre de gravidez (T2), e no puerpério (T3), na Unidade Materno-infantil do Hospital Universitário da Universidade Federal do Maranhão. A amostra de saliva estimulada foi coletada para análise bioquímica de Fe salivar, e a amostra de sangue foi coletada no início da manhã. A correlação entre o Fe salivar e o Fe sérico foi avaliada através do teste de correlação de Pearson. Os testes ANOVA e Kruskal-Wallis foram utilizados para comparar parâmetros de anemia em diferentes momentos. Os testes t de Student e Mann-Whitney foram utilizados para comparar os parâmetros da anemia entre os grupos de gestantes (come sem lesões de cárie). Resultados As concentrações séricas de Fe foram maiores no primeiro trimestre de gestação e menores após o parto (p = 0,036). Observou-se também que as concentrações de ferritina forammaiores no primeiro trimestre emenores no final da gestação (p = 0,011). Não houve associação entre as exposições e o desenvolvimento de cárie dentária. Houve correlação positiva entre o Fe sérico em T1 e o Fe salivar em T2 (p < 0,05). Conclusão Os marcadores séricos de anemia foram mais prevalentes no último trimestre de gestação.

Knowledge of pediatricians and the importance of interdisciplinarity in attention to oral health in early childhood / Conhecimento de médicos pediatras e a importância da interdisciplinaridade na atenção em saúde bucal na primeira infância

The objective of this study was to evaluate the knowledge of pediatricians on the integrality of attention to oral health in early childhood. A cross-sectional study was conducted with a sample consisting of 70 doctors, working in public and private services, in the city of Belém, state of Pará, Brazil. Data were collected using a questionnaire with approaches on: the professional profile; the knowledge of oral health of children; the use of fluoride; and self-perception on knowledge of oral health. A descriptive analysis of the data was performed, and the association between variables was verified with the Chi-square test, with p = 0.05. The average age of respondents was 41 years. Most professionals were females (88.57%) and featured more than 20 years of professional experience (38.57%). In general, most pediatricians answered satisfactorily the questions related to knowledge of children's oral health. However, when questioned about the knowledge of the use of fluoride, most professionals (92.86%) presented outdated knowledge that could result in inappropriate conduct. It was concluded that most pediatricians have knowledge of oral health promotion, although some concepts and conducts should be updated, especially the importance of fluorides in the control of tooth decay.

O objetivo deste estudo foi avaliar os conhecimentos de médicos pediatras para integralidade da atenção em saúde bucal na primeira infância. Realizou-se um estudo transversal, com amostra constituída por 70 médicos, atuantes nos serviços público e privado, na cidade de Belém, Pará. Os dados foram coletados por meio de questionário com abordagens sobre o perfil do profissional; o conhecimento em saúde bucal da criança; o uso do flúor e a autopercepção do conhecimento de saúde bucal. Executou-se análise descritiva dos dados e para associação entre variáveis utilizou-se o teste do Qui-Quadrado, com p=0,05. A idade média dos entrevistados foi de 41 anos. A maioria dos profissionais pertencia ao sexo feminino (88,57%) e apresentava mais de 20 anos de experiência profissional (38,57%). Em geral, a maioria dos pediatras respondeu de forma satisfatória as perguntas relacionadas ao conhecimento sobre saúde bucal da criança. Entretanto, quando questionados a respeito dos conhecimentos sobre o uso do flúor, a maioria dos profissionais (92,86%) apresentou conhecimento desatualizado, podendo resultar em condutas inadequadas. Concluiu-se que a maioria dos pediatras possui conhecimento sobre promoção de saúde bucal, porém alguns conceitos e condutas necessitam ser atualizados, principalmente quanto à importância dos fluoretos no controle da cárie dentária.

Estudo clínico randomizado de restaurações classe II de ART com e sem retenções proximais em dentes decíduos / Randomized clinical trial of multiple surface ART restorations with and without proximal retentions in primary teeth

O tratamento restaurador atraumático constitui-se numa abordagem de cuidados minimamente invasivos que objetivam a prevenção e interrupção da progressão da cárie dentária. Não existe na literatura estudo clínico randomizado em dentes decíduos comparando restaurações de classe II de ART, com e sem retenções adicionais. O objetivo deste trabalho foi avaliar o efeito de sulcos de retenção proximal sobre as taxas de sobrevida das restaurações classe II de ART em dentes decíduos, usando cimento de ionômero de vidro de alta viscosidade e alta resistência flexural. Foram incluídas 183 crianças com idade entre 4 a 7 anos, com boa saúde geral, 1 a 4 cavidades de classe II em molares decíduos sem envolvimento pulpar ou dor de dente. Dessas crianças, 300 dentes foram randomizados e distribuídos em dois grupos, conforme o índice de cárie da criança e o tamanho da cavidade a ser restaurada. Os grupos foram: controle restaurações de ART classe II convencionais (Grupo 1, n=150) e teste restaurações de ART classe II contendo sulcos de retenção proximais (Grupo 2, n=150). Cada um dos grupos seguiu procedimentos clínicos padronizados. No grupo teste as retenções foram realizadas com colher de dentina modificada no ângulo gengivovestibular/ lingual até 0,5 mm da junção amelo-dentinária da margem oclusal. Após 6 e 12 meses 130 restaurações do Grupo 1 e 110 restaurações do Grupo 2 foram examinadas de forma cega utilizando os critérios do ART Frencken adaptado e do USPHS modificado. Para a taxa de sobrevida das restaurações foi utilizado o teste de Kaplan-Meier (p<0,05). Não houve diferença significativa entre os grupos (p=0,70) utilizando os critérios do ART, sendo que as taxas de sobrevida encontradas para ambos os grupos foram superiores a 90%. O mesmo resultado foi observado em todos os critérios (cor, descoloração marginal, recidiva de cárie, forma anatômica, integridade marginal e textura superficial) USPHS (p>0,05). Os principais motivos de falhas das restaurações foram perda total ou parcial da restauração (84%), seguido de inflamação pulpar (16%). Conclui-se que as restaurações classe II de ART com sulcos de retenção proximal apresentaram taxa de sobrevida semelhantes às restaurações sem retenção após 6 e 12 meses.(AU)

The atraumatic restorative treatment is an approach of minimally invasive care that aims to prevent and interrupt the progression of dental caries. There is no randomized clinical trial in primary teeth with multiple surface ART restorations, with and without additional retentions. The aim of this study was to evaluate the effect of proximal retention grooves on the survival rates of occlusoproximal ART restorations in primary teeth using high viscosity glass ionomer cement with high flexural strength. A total of 183 children aged 4 to 7 years, with good general health, 1 to 4 occlusoproximal cavities in primary molars without pulp involvement or tooth pain were included. Of these children, three hundred teeth were randomized and alocated into two groups, according to the child's caries index and the size of the cavity to be restored. The groups were: control - conventional occlusoproximal ART restorations (Group 1, n=150) and test - occlusoproximal ART restorations containing proximal retention grooves (Group 2, n=150). The procedures of both groups followed standardized steps. In the test group the retentions were performed with a modified dentin spoon at the gingival-vestibular / lingual angle up to 0.5 mm from the amelodentin junction of the occlusal margin. After 6 and 12 months 130 restorations in Group 1 and 110 restorations in Group 2 were examined (blind) using the modified ART Frencken criteria and the modified USPHS criteria. The Kaplan-Meier test was performed for the survival rate of the restorations (p<0.05). There was no significant difference between groups (p=0.70) using the ART criteria, and the survival rates found for both groups were greater than 90%. The same results was observed for all USPHS criteria (color, marginal discoloration, secondary decay, anatomical form, marginal integrity and surface texture) (p>0.05). The main reasons for restorations failure were total or partial loss of restoration (84%), followed by pulpal inflammation (16%). It was concluded that multiple surface ART restorations with proximal retention grooves presented similar survival rates to non-grooves restorations after 6 and 12 months.(AU)

Dental pain and associated factors in Brazilian preschoolers / Dor dentária e fatores associados em pré-escolares brasileiros

Abstract Objective: To describe the prevalence of dental pain in Brazilian preschoolers, as well as its associated factors, considering a representative sample of that population group in Brazil. Methods: Cross-sectional study that used the analytical data from national oral health survey (SB Brazil) carried out in 2010. A representative sample of Brazilian preschoolers aged 5 years was considered. Interviews were carried out (answered by parents/tutors), as well as clinical examinations in children. Descriptive, bivariate and mutiple analyzes were performed, described in odds ratios and 95% confidence interval (OR/95%CI). Results: 7280 preschoolers were included. Of these, 1520 (21.1%) had dental pain in the last 6 months. The chance of the occurrence of dental pain was higher among those who used dental services (1.51/1.02–2.23), with tooth decay (3.08/2.08–4.56), that self-perceveid the need for dental treatment (3.96/2.48–6.34), whose parents reported dissatisfaction by children with their teeth and mouth (1.47/1.04–2.10) and those who reported impact of oral problems on quality of life (5.76/3.90–8.49). Conclusions: The prevalence of dental pain among Brazilian preschool children was relatively high, being associated with the use of dental services and the normative and subjective oral health status.

Resumo Objetivo: Descrever a prevalência da dor dentária em pré-escolares brasileiros, assim como seus fatores associados, considerando uma amostra representativa desse contingente populacional no Brasil. Métodos: Estudo transversal, analítico, que usou os dados do Inquérito Nacional de Saúde Bucal (SB Brasil) feito em 2010. Considerou-se uma amostra representativa de pré-escolares com 5 anos. Foram feitas entrevistas (respondidas pelos responsáveis) e exames clínicos nas crianças. Conduziram-se análises descritivas, bivariadas e múltiplas, descritas em odds ratio e intervalo de confiança de 95% (OR/IC95%). Resultados: Foram incluídos 7.280 pré-escolares. Desses, 1.520 (21,1%) tiveram dor dentária nos últimos 6 meses. A chance da ocorrência de dor dentária foi maior entre aqueles que usaram serviços odontológicos (1,51/1,02-2,23), com cárie dentária (3,08/2,08-4,56), perceberam a necessidade de tratamento odontológico (3,96/2,48-6,34), os que os pais relatavam insatisfação por parte das crianças com seus dentes e sua boca (1,47/1,04-2,10) e os que relataram impacto dos problemas bucais na qualidade de vida (5,76/3,90-8,49). Conclusões: A prevalência da dor dentária entre pré-escolares brasileiros foi relativamente alta e associada ao uso de serviços odontológicos e às condições normativas e subjetivas de saúde bucal.

Uso odontológico de propóleos de origen costarricense

El objetivo de la investigación fue determinar el nivel de efectividad antimicrobiana in vitro de propóleos altos en compuestos fenólicos de origen costarricense sobre las especies streptococcus sanguinis y streptococcus mutans. Se midió la acción bacteriostática o bactericida del propóleo en una concentración al 50%, 70% y 80%, comparando su efecto contra el digluconato de clorhexidina al 0,12%. El análisis evidenció que el propóleo ejerce una acción bactericida sobre la especie streptococcus sanguinis independientemente de su concentración, y por otra parte sobre la bacteria streptococcus mutans las concentraciones del propóleo al 50% y 70% resultaron en acción bacteriostática. De forma tal se concluye que los tres extractos del propóleo generaron un efecto antimicrobiano sobre las especies S. mutans y S. sanguinis. Se obtuvieron efectos bactericidas de los extractos del propóleo similares al gluconato de clorhexidina al 0,12%, y esto justifica que puede ser empleado como herramienta para la prevención o coadyuvante del tratamiento de la enfermedad periodontal y reducción del riesgo de caries.

The aim of the research was to determine the In Vitro level of antimicrobial effectiveness of Costa Rican propolis high in phenolic compounds on the species Streptococcus Mutans and Streptococcus Sanguinis. It was measured the bacteriostatic and / or bactericidal action of propolis in 50%, 70% and 80% concentration, comparing their effect against chlorhexidine 0.12%. The analysis showed that propolis proved a bactericidal effect on the species Streptococcus Sanguinis regardless of their concentration; on the other hand on the propolis concentrations of 50% and 70% on the bacterium Streptococcus mutans resulted in bacteriostatic action. It is concluded that the three extracts of propolis generated an antimicrobial effect on the species S. mutans and S. Sanguinis. Antibacterial effects from extracts of propolis were similar to chlorhexidine 0.12%, this justifies that can be used as a tool for prevention and / or adjunctive treatment of periodontal disease and reduction of tooth decay risk.

The hardness and chemical changes in demineralized primary dentin treated by fluoride and glass ionomer cement / As mudanças químicas e de dureza na dentina decidua desmineralizada tratada com fluoreto e cimento de ionômero de vidro

Background: Fluoride plays an important role in the control of dental caries. Aim: To evaluate the chemical exchange between restoration of glass ionomer cement of high viscosity (GIC) and primary dentin with application of sodium fluoride (NaF) 2% through changes in hardness from uptake of calcium, phosphate and fluoride. Material and method: Class I cavities were prepared in 40 sound primary molars, and the sample was divided into two groups (n=20) according to dentin condition: sound (1) and demineralized (2). Sub-groups (n=10) were formed to investigate the isolated action of the GIC or the association with NaF (F). This in vitro study examined the chemical exchange under two conditions, sound and demineralized dentin (pH cycling), to simulate the occurrence of mineral loss for the caries lesion. G1 and G2 received GIC restoration only; groups G1F and G2F received NaF before GIC restoration. The specimens were prepared for Knoop hardness test and micro-Raman spectroscopy. A two-way ANOVA test (alfa = 0.05) was used for statistical analysis. Micro-Raman data were qualitatively described. Result: Increased hardness was observed in all the sites of direct contact with GIC in sound and demineralized dentin for all groups (p<0.001); no difference was observed in microhardness after application of NaF (p>0.05). In the evaluation of micro-Raman, direct contact between GIC and dentin for sound and demineralized dentin resulted in increased peaks of phosphate. Conclusion:The exchange between GIC and demineralized dentin may induce changes of mechanical properties of the substrate, and uptake of mineral ions (phosphate) occurs without the influence of NaF.

Introdução: O fluoreto desempenha importante papel no controle da cárie dental. Objetivo: Avaliar as trocas químicas entre cimentos de ionômero de vidro de alta viscosidade (CIV) e dentina decídua com aplicação de fluoreto de sódio (NaF) a 2% em alterações de dureza dentinária a partir da incorporação de cálcio, fosfato e fluoreto. Material e método: Cavidades Classe I foram preparadas em 40 molares hígidos divididos em 2 grupos (n=20), de acordo com a condição dentinária: hígida (1) e desmineralizada (2). Subgrupos (n=10) foram formados para avaliar a ação isolada do CIV ou associado com NaF (F). Este estudo in vitro avaliou as trocas químicas sob duas condições: dentina hígida e desmineralizada (ciclagem de pH) para simular a perda mineral que ocorre em lesões de cárie. Grupo G1 e G2 receberam restaurações de CIV; Grupos G1F e G2F receberam NaF antes do CIV. Os espécimes foram preparados para microdureza Knoop e Micro-Raman. Para análise estatística foi utilizada Anova 2 fatores (alfa = 0.05). Os dados do Micro-Raman foram descritos qualitativamente. Resultado: O aumento de dureza foi observado em todos os sítios de contato direto com CIV, em ambas dentinas em todos os grupos (p<0.001); não foi observado diferença em microdureza após aplicação do NaF (p>0.05). Na avaliação do Micro-Raman, o contato direto do CIV/dentina tanto hígida quanto desmineralizada resultou em um aumento do pico do fosfato dentinário. Conclusão: As trocas químicas entre o CIV e dentina desmineralizada podem induzir mudanças das propriedades mecânicas do substrato e a captação de íons minerais (fosfato) ocorre sem a influência do NaF.

Relación de los niveles de caries y Ph salival en pacientes adolescentes / Relathionship between caries levels and salivary pH in adolescent patients

El presente estudio se realiza con el propósito de conocer la relación entre la presencia de caries y pH salival en adolescentes con edades comprendidasentre 10 y 20 años. La muestra estuvo constituida por dos grupos: uno incluyó pacientes con caries que asistieron a la Facultad de Odontología UNNE parasu atención durante el ciclo lectivo 2012; y el otro sin caries, alumnos de 2º año de la Carrera de Odontología,ambos con la misma edad y género.El pH en pacientes con un índice de caries de 4.5 varió entre 5 y 7, siendo el intervalo de referencia normal 6,5 y en los pacientes que no manifestaron caries el pH osciló entre 6.5 y 7. Los resultados del estudio están orientados a la prevención y promoción de la salud en la educación y concientización de este grupo vulnerable...