RESUMO

El propósito del estudio fue determinar la relación existente entre el ceo y la aplicación periódica y constante de medidas preventivas basadas en fluoruro tópico. El examen fue desarrollado en 520 niños de 6 a 12 años que presentaron consentimiento informado, residentes desde su nacimiento en Cd. Nezahualcóyotl, Estado de México, y que estuvieron sujetos tanto al Programa de Fluoruración de la Sal, como a los diversos programas preventivos locales para caries dental basados en fluoruro. El proceso estadístico incluyó la determinación de la Prevalencia y Riesgo de Caries que fue de 63.84% y de 0.20 respectivamente. Por otra parte, el ceo promedio para el total de la población fue de 2.34. El riesgo de caries no presenta ninguna variación en los niños de primero a sexto grado y el número de aplicaciones profesionales o de autoaplicaciones de fluoruro no tiene influencia sobre el riesgo de caries.

The purpose of this study was to determine the relationship between dmft with periodic and constant applications of preventive measures based on topic fluoride. The screen was on 520 6-12-year old children who had signed informed consent; life-long residents since birth in Nezahualcoyotl City, State of Mexico and were subject not only to the Salt Fluoridation Program, but also to the different dental caries local preventive programs based on fluoride. The statistical process included also the determination of Prevalence and Caries Risk of temporary teeth; 63.84% and 0.20 respectively. Likewise, average dmft to the total population was 2.34. The Caries Risk does not show any variation between the 1st-6th degree scholar children and the number of professional or self fluoride applications does not have any influence on the caries risk score.

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RESUMO

OBJECTIVE: To compare the prevalence and severity of dental caries found in epidemiological surveillance studies conducted in three areas of Mexico in two different periods, 1987-1988 and 1997-1998. METHODS: The 1987-1988 survey was done with representative samples of schoolchildren 6 to 10 years old in two states, Nuevo León and Tabasco, as well as in the country's Federal District (which includes Mexico City). The Federal District's 1987-1988 sample also included schoolchildren who were 12 years old. The total number of students examined in the 1987-1988 period was 7 590. The 1997-1998 survey included schoolchildren who were 6-10 years old and 12 years old, in all three of the areas. The total number of students included in the 1997-1998 survey was 8 164. To compare the prevalence and severity of dental caries in the two periods, the average value for the index of decayed, missing, and filled teeth (DMFT) was used with all of the age groups. RESULTS: The values of the DMFT indices were significantly lower in the 1997-1998 period for all of the age groups studied (P < 0.05 for all the age groups). In the 1997-1998 period both Tabasco and Nuevo León achieved the goal recommended by the World Health Organization of an average of no more than three decayed, missing, and filled teeth among the 12-year-olds, with DMFT indices of 2.67 and 1.72, respectively. However, in the Federal District in that 1997-1998 period the DMFT index exceeded the recommended level, with a value of 3.11. CONCLUSIONS: The reduction seen in the DMFT indices could be due to several factors, including the consumption of fluoridated salt, the use of dentifrices and fluoride rinses, and broader access to dental services.

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RESUMO

OBJETIVO: Comparar la prevalencia y la gravedad de la caries dental en dos estudios de vigilancia epidemiológica realizados en tres regiones de México en los años 1987-1988 y en 1997-1998. MÉTODOS: La encuesta de 1987-1988 se aplicó a una muestra representativa de escolares de 6 a 10 años de edad de los estados de Nuevo León, Tabasco y el Distrito Federal (D.F.); adicionalmente se incluyeron escolares de 12 años del D.F. El total de alumnos examinados en 1987-1988 fue de 7590. En la encuesta de 1997-1998 se incluyó a escolares de 6 a 10 y 12 años de edad de las tres regiones estudiadas. El total de alumnos incluidos en 1997-1998 fue de 8164. Se compararon las medias del índice de dientes cariados, perdidos u obturados (CPOD) de cada grupo de edad en ambos períodos. RESULTADOS: Los resultados mostraron una disminución de la prevalencia y de la gravedad de la caries dental en los grupos de edad examinados (P < 0,05). En 1997-1998, tanto en el estado de Tabasco como en el de Nuevo León se logró la meta propuesta por la Organización Mundial de la Salud de reducir a no más de tres los dientes cariados, perdidos u obturados a los 12 años de edad, con índices de CPOD de 2,67 y 1,72, respectivamente, aunque el D.F. sobrepasó esa cifra tope (CPOD = 3,11). CONCLUSION: La disminución observada en los índices CPOD podría deberse a varios factores, tales como el consumo de sal fluorada, el uso de dentífricos y enjuagues fluorados, y un mayor acceso a los servicios odontológicos

Objective. To compare the prevalence and severity of dental caries found in epidemiological surveillance studies conducted in three areas of Mexico in two different periods, 1987­1988 and 1997­1998. Methods. The 1987­1988 survey was done with representative samples of schoolchildren 6 to 10 years old in two states, Nuevo León and Tabasco, as well as in the country's Federal District (which includes Mexico City). The Federal District's 1987­ 1988 sample also included schoolchildren who were 12 years old. The total number of students examined in the 1987­1988 period was 7 590. The 1997­1998 survey included schoolchildren who were 6­10 years old and 12 years old, in all three of the areas. The total number of students included in the 1997­1998 survey was 8 164. To compare the prevalence and severity of dental caries in the two periods, the average value for the index of decayed, missing, and filled teeth (DMFT) was used with all of the age groups. Results. The values of the DMFT indices were significantly lower in the 1997­1998 period for all of the age groups studied (P < 0.05 for all the age groups). In the 1997­1998 period both Tabasco and Nuevo León achieved the goal recommended by the World Health Organization of an average of no more than three decayed, missing, and filled teeth among the 12-year-olds, with DMFT indices of 2.67 and 1.72, respectively. However, in the Federal District in that 1997­1998 period the DMFT index exceeded the recommended level, with a value of 3.11. Conclusions. The reduction seen in the DMFT indices could be due to several factors, including the consumption of fluoridated salt, the use of dentifrices and fluoride rinses, and broader access to dental services

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