Prevalence of Functional Dentition in a Group of Mexican Adult Males.

OBJECTIVE: To determine the prevalence of functional dentition and associated periodontal variables in a sample of Mexican adult males. METHODS: A cross-sectional study of 161 policemen in Campeche, Mexico, was carried out. A clinical examination using an electronic probe was used to collect variables (dental plaque, periodontal pockets, gingival recession, suppuration, and bleeding on probing) on 6 periodontal sites (a maximum of 168 sites, excluding third molars). Sociodemographic, socioeconomic, and behavioral variables were collected through a self-administered survey. Functional dentition was defined as having 21 or more natural teeth. Data were analyzed with STATA 11.0, using logistic regression models. RESULTS: Mean age was 38.3 (±10.9) years. The prevalence of having a functional dentition was 83.8% in the sample. The odds of having a functional dentition declined with age (odds ratio [OR] = 0.93), having diabetes (OR = 0.27) and with having a high percentage of sites with plaque (OR = 0.77), with bleeding on probing (OR = 0.97), and with gingival recession (OR = 0.82). CONCLUSION: While a large proportion of subjects had a functional dentition in this community-dwelling sample of adult Mexican males, the likelihood of their having a functional dentition decreased with age, with their having been diagnosed with diabetes, and with assorted negative indicators of periodontal/gingival status.

Relationship between premature loss of primary teeth with oral hygiene, consumption of soft drinks, dental care, and previous caries experience.

We determine the relationship between premature loss of primary teeth and oral hygiene, consumption of soft drinks, dental care and previous caries experience. This study focused on 833 Mexican schoolchildren aged 6-7. We performed an oral examination to determine caries experience and the simplified oral hygiene index. The dependent variable was the prevalence of at least one missing tooth (or indicated for extraction) of the primary dentition; this variable was coded as 0 = no loss of teeth and 1 = at least one lost primary tooth. The prevalence of at least one missing tooth was 24.7% (n = 206) (95% CI = 21.8-27.7). The variables that were associated with the prevalence of tooth loss (p < 0.05) included: the largest number of decayed teeth (OR = 1.11), the largest number of filled teeth (OR = 1.23), the worst oral hygiene (OR = 3.24), a lower frequency of brushing (OR = 1.60), an increased consumption of soda (OR = 1.89) and use of dental care (curative: OR = 2.83, preventive: OR = 1.93). This study suggests that the premature loss of teeth in the primary dentition is associated with oral hygiene, consumption of soft drinks, dental care and previous caries experience in Mexican schoolchildren. These data provide relevant information for the design of preventive dentistry programs.

Gravedad de caries empleando un criterio del tamaño de la lesión y variables asociadas en una muestra de escolares mexicanos / Caries severity using a criterion according to size of lesion among Mexican schoolchildren

Objetivo: Determinar la gravedad de caries (tamaño de la lesión) y las variables asociadas en niños escolares mexicanos. Materiales y Métodos: Se realizó un estudio transversal en 1373 escolares de 6 a 12 años de edad inscritos en escuelas públicas de Campeche, México. Se distribuyeron cuestionarios para determinar una serie de variables sociodemográficas, socioeconómicas y conductuales. Se realizó un examen bucal a cada niño para establecer el tamaño de las lesiones de caries de acuerdo al índice llamado "criterio de magnitud de la lesión cariosa" y asignarlo de acuerdo al número de lesiones presentes a uno de 4 grupos de riesgo para desarrollar caries, en donde el primer grupo representa a los menos afectados. Se generó un modelo multivariado de regresión logística multinomial. Resultados: Los grupos de riesgo a caries quedaron distribuidos de la siguiente manera: 598 (43.6%) fueron del grupo 1; 261 (19.0%) se asignaron al grupo 2; 316 (23.0%) estuvieron en el grupo 3; y 198 (14.4%) en el grupo 4. Comparando con el grupo menos afectado por lesiones cariosas, las variables asociadas en los diferentes grupos de gravedad en el modelo multivariado fueron: grupo de riesgo 2: edad, sexo y defectos de desarrollo del esmalte; grupo de riesgo 3: atención dental en el último año, actitud de la madre hacia la salud bucal y defectos de desarrollo del esmalte; grupo de riesgo 4: edad, atención dental en el último año, actitud de la madre hacia la salud bucal y defectos de desarrollo del esmalte. Conclusión: La gravedad de caries está influenciada por variables demográficas, conductuales y clínicas.

Objective: To determine the severity of caries (lesion size) and associated variables in Mexican schoolchildren. Material and Methods: A cross-sectional study was conducted in 1373 schoolchildren 6-12 years old enrolled in public schools in Campeche, Mexico. Questionnaires were distributed to determine demographic, socioeconomic and behavioral variables. Dental examination was performed to each child to establish the size of caries lesions according "Criterion of carious lesion magnitude" index and to allocate according to the number of lesions present to one of four risk groups for developing cavities wherein the first group represents the least affected. A multivariate multinomial logistic regression model was generated. Results: Caries risk groups were distributed as follows: 598 (43.6%) were in group 1; 261 (19.0%) were assigned to group 2; 316 (23.0%) were in group 3; and 198 (14.4%) in group 4. Comparing with the least affected group by carious lesions, associated variables for severity in the multivariate model were "Risk Group 2": age, sex and developmental enamel defects; "Risk Group 3": dental care in the past year, mother's attitude toward oral health and developmental enamel defects; "Risk Group 4": age, dental care in the past year, mother's attitude toward oral health and developmental enamel defects. Conclusion: Severity of decay is influenced by demographic, behavioral and clinical variables.

Tooth brushing frequency in Mexican schoolchildren and associated socio-demographic, socioeconomic, and dental variables.

BACKGROUND: Tooth brushing (with fluoridated toothpaste) is the most cost-effective intervention in dentistry and it is widely recommended to preserve good oral health. We aimed to determine the frequency of tooth brushing and the variables associated with this practice in schoolchildren living in southeast Mexico. MATERIAL AND METHODS: A cross-sectional study was carried out in 1644 schoolchildren, 6 to 13 years old. Questionnaires with socio-demographic, socioeconomic, and dental variables were administered to mothers/guardians of children. The dependent variable was the frequency of tooth brushing, which was categorized as 0 = tooth brushing less than once a day and 1 = tooth brushing at least once a day. A logistic regression model was used to evaluate the final results. RESULTS: Mean age was 9.06±2.02 years and 49.1% were girls. The prevalence of tooth brushing at least once a day was 49.8%. In the multivariate model, characteristics related to tooth brushing frequency (p<0.05) were: older age (OR=1.11), being female (OR=1.64), having a larger family (OR=0.87), having had a visit to a dentist during the year preceding the study (OR=1.37), and having had fluoride applications by a professional (OR=1.39). CONCLUSIONS: The results suggested that different variables (demographic, socioeconomic and dental) are associated with the frequency of tooth brushing. Family size (proxy variable for socioeconomic status) may indicate certain oral health inequalities in this population.

Cuidados de la dentición primaria de escolares de 6 y 7 años de edad / Care index for primary teeth in schoolchildren aged 6 and 7 years

Determinar la existencia, prevalencia y gravedad de caries dental, así como establecer las necesidades de tratamiento y el índice de cuidados en la dentición primaria de niños mexicanos de 6 y 7 años de edad. Material y métodos: Este estudio transversal incluyó 357 escolares de la ciudad de Campeche, México. El índice de dientes cariados, indicados para extracción/extraídos y perdidos (índice ceod) fue utilizado para determinar la existencia de caries dental, y con él se calcularon igualmente la prevalencia (ceod > 0), la gravedad (ceod ≥ 4), así como las necesidades de tratamiento (INT) y el índice de cuidados. Se utilizaron cuestionarios para identificar las variables sociodemográficas, socioeconómicas y de conductas de salud bucal. En el análisis se empleó el modelo de regresión logística binaria. Resultados: El índice ceod global fue de 2.29 ± 2.95. La prevalencia y la gravedad fueron 52.4% y 29.1%, respectivamente. El porcentaje del INT fue de 88.1% y el índice de cuidados de 11.4%. En el modelo multivariado, la actitud negativa hacia la salud bucal (odds ratio [OR] = 2.32; intervalo de confianza [IC] del 95%: 1.36-3.94) y las visitas al dentista en el año previo al estudio (OR = 1.93; IC 95%: 1.44-2.54), resultaron asociadas a la prevalencia de caries. Conclusiones: Más de la mitad de los escolares presentan lesiones de caries en la dentición primaria. Se observó un alto porcentaje de lesiones cariosas con necesidad de tratamiento. Observamos que la actitud que tiene la madre hacia la salud bucal de su hijo tiene cierto grado de influencia sobre la prevalencia de caries en la dentición primaria. Es necesario implementar estrategias que permitan mejorar la salud bucal de los escolares...

[Dental fluorosis prevalence in eight cohorts of Mexicans born during the implementation of the Fluoridated Domestic Salt National Program]. / Prevalencia de fluorosis dental en ocho cohortes de mexicanos nacidos durante la instauración del Programa Nacional de Fluoruración de la Sal Doméstica.

OBJECTIVE: to determine the effect of birth cohort on dental fluorosis in Mexican schoolchildren during the implementation of the national program to fluoridate domestic salt. MATERIAL AND METHODS: in a cross-sectional study we examined 1,644 schoolchildren 6-13 years old born between 1985-1992 in Campeche, México; a community where there is negligible naturally available fluoride in water supplies. Dental fluorosis was assessed with the Dean's index in the permanent dentition. Questionnaires were used to identify diverse socio-demographic and socio-economic variables. In the statistical analysis logistic regression was used. RESULTS: the prevalence of fluorosis was 15.5%. In the multivariate model,we observed fluorosis was associated with larger family sizes (OR: 0.91; 95% CI: 0.84-0.99) and female sex (OR: 0.74; 95%CI: 0.57-0.98). Furthermore, using the cohort of 1985 as a comparison group, no significant dental fluorosis differences were found with those born between 1986-1987; in contrast, in the cohorts born between 1989-1992 the risk of dental fluorosis increased by almost four times (p < 0.05). CONCLUSION: the prevalence of fluorosis was low compared to other studies in Mexico. In this community with negligible fluoride in water supplies the likelihood of dental fluorosis increased as the windows of susceptibility in birth cohorts were closer to the chronologic beginning of the national domestic salt fluoridation program in 1991. This trend was more apparent after 1991.

[Influence of predisposing, enabling, and health care need variables on the use of dental health services among Mexican adolescents from a semi-rural location]. / Influencia de variables predisponentes, facilitadoras y de necesidades sobre la utilización de servicios de salud bucal en adolescentes mexicanos en un medio semirrural.

OBJECTIVE: The purpose of this study was to quantify the influence of some of the predisposing, enabling, and healthcare need variables on dental health services utilization (DHSU) among Mexican adolescents. MATERIAL AND METHODS: This is a cross-sectional analytical study including 1,538 Mexican teenagers 12 and 15 years of age. The dependent variable was DHSU in the previous 12 months. Data were collected through a questionnaire and included demographic, socioeconomic, and behavioral factors. The study included an oral examination. The analysis included nonparametric statistics and a logistic regression model. RESULTS: Of the 1,538 adolescents, 688 were 12 years old and 850 were 15 years old. Girls accounted for 49.9%. The prevalence of DHSU was 15%. In the final model we found that having moved at least once from the community in which the child was born was associated with DHSU (OR: 1.24; 95% CI: 1.10-1.40; p > 0.05), just as it was observed for purchasing purified water for home consumption instead of relying on piped water supplies (OR: 1.52; 95% CI: 1.03-2.25), higher educational attainment of the mother (OR: 1.39; 95% CI: 1.02-1.91) and of the father (OR: 1.87; 95% CI: 1.09-3.19). Having more sound teeth (OR: 0.96; 95% CI: 0.94-0.98), and having at least one tooth with caries (OR: 1.10; 95% CI: 1.01-1.18) were also associated with DHSU (p > 0.05). CONCLUSION: The percentage of subjects with DHSU in the prior 12 months was low compared with other studies. Our identification of the variables associated with DHSU (often surrogates of socioeconomic position) indicated the existence of oral health inequalities and the need to develop strategies to reduce the gaps identified.

Gingival recession and associated factors in a homogeneous Mexican adult male population: A cross-sectional study

Background: Diverse variables are implicated in the pathogenesis of gingival recession; more detailed knowledge about the relationship between the clinical presentation of gingival recession and assorted risk indicators may lead to improved patient monitoring, early intervention, and subsequent prevention. The objective was to evaluate clinically gingival recession in a homogeneous Mexican adult male population and to determine the strength of association with related factors. Method: A cross-sectional study was carried out in a largely homogeneous group in terms of ethnic background, socioeconomic status, gender, occupation, and medical/dental insurance, in Campeche, Mexico. Periodontal examinations were undertaken to determine diverse clinical dental variables. All periodontal clinical examinations were assessed using the Florida Probe System, a dental chair and one examiner. Questionnaires were used to collect diverse risk indicators. Statistical analyses were undertaken with negative binomial regression models. Results: The mean number of sites with gingival recession per subject was 6.73±5.81; the prevalence was 87.6%. In the negative binomial regression model we observed that for (i) each year of age, and (ii) each percentage unit of increase in sites with plaque, and (iii) with suppuration, mean sites with gingival recession increased 2.9%, 1.0% and 13.0%, respectively. Having a spouse was associated with gingival recession. Conclusions: We observed association between gingival recession, and sociodemographic and clinical parameters. Patients need to be educated about risk indicators for gingival recession as well as the preventive maneuvers that may be implemented to minimize its occurrence. The potential of improved oral self-care to prevent a largely benign condition such as gingival recession is important, given the associated disorders that may ensue root exposure, such as root caries and root hypersensitivity (AU)

Gingival recession and associated factors in a homogeneous Mexican adult male population: a cross-sectional study.

BACKGROUND: Diverse variables are implicated in the pathogenesis of gingival recession; more detailed knowledge about the relationship between the clinical presentation of gingival recession and assorted risk indicators may lead to improved patient monitoring, early intervention, and subsequent prevention. The objective was to evaluate clinically gingival recession in a homogeneous Mexican adult male population and to determine the strength of association with related factors. METHOD: A cross-sectional study was carried out in a largely homogeneous group in terms of ethnic background, socioeconomic status, gender, occupation, and medical/dental insurance, in Campeche, Mexico. Periodontal examinations were undertaken to determine diverse clinical dental variables. All periodontal clinical examinations were assessed using the Florida Probe System, a dental chair and one examiner. Questionnaires were used to collect diverse risk indicators. Statistical analyses were undertaken with negative binomial regression models. RESULTS: The mean number of sites with gingival recession per subject was 6.73±5.81; the prevalence was 87.6%. In the negative binomial regression model we observed that for (i) each year of age, and (ii) each percentage unit of increase in sites with plaque, and (iii) with suppuration, mean sites with gingival recession increased 2.9%, 1.0% and 13.0%, respectively. Having a spouse was associated with gingival recession. CONCLUSIONS: We observed association between gingival recession, and sociodemographic and clinical parameters. Patients need be educated about risk indicators for gingival recession as well as the preventive maneuvers that may be implemented to minimize its occurrence. The potential of improved oral self-care to prevent a largely benign condition such as gingival recession is important, given the associated disorders that may ensue root exposure, such as root caries and root hypersensitivity.

Desigualdades socioeconómicas en la utilización de servicios de salud bucal: estudio en escolares mexicanos de 6 a 12 años de edad / Socioeconomic inequalities in the use of dental services: a study of Mexican schoolchildren aged 6 to 12 years

El objetivo del estudio fue evaluar la asociación entre diversos indicadores socioeconómicos y la utilización de servicios de salud bucal. Se realizó un estudio transversal en 3.048 escolares. La variable utilización de servicios de salud bucal y las variables sociodemográficas y socioeconómicas se colectaron a través de un cuestionario dirigido a las madres. Para determinar las necesidades de salud se realizó un examen clínico bucal a los niños. Las asociaciones ajustadas fueron evaluadas con regresión logística politómica. Las variables asociadas a servicios preventivos y curativos fueron mayor edad, mayor frecuencia de cepillado y menor edad al inicio de cepillado dental, tener seguro público o privado, y mejor nivel socioeconómico. Además, sólo para los servicios preventivos, también se asoció estar inscrito en una escuela privada, y sólo para los servicios curativos, la posesión de automóvil y tener necesidades de salud bucal entre moderadas y muy altas. Los resultados sugieren la existencia de desigualdades socioeconómicas en la utilización de servicios de salud bucal en niños mexicanos.

The aim of this cross-sectional study was to evaluate the association between socioeconomic indicators and use of dental services in a sample of 3,048 Mexican schoolchildren. The dependent variable "use of dental services" and independent variables were collected through a questionnaire addressed to mothers. To determine oral health needs, a clinical oral examination was performed. The adjusted associations were evaluated using polytomous logistic regression. Adjusted by gender, the categories associated with both preventive and curative services were age, greater frequency of brushing, earlier initiation of brushing, healthcare coverage, and better socioeconomic status. In addition, for preventive services only, use of services was associated with enrolment in private school, and for curative services only, family's possession of an automobile and having moderate to high oral health needs. The results suggest the existence of socioeconomic inequalities in the use of both preventive and curative dental services by Mexican children.

[Socioeconomic inequalities in the use of dental services: a study of Mexican schoolchildren aged 6 to 12 years]. / Desigualdades socioeconómicas en la utilización de servicios de salud bucal: estudio en escolares mexicanos de 6 a 12 años de edad.

The aim of this cross-sectional study was to evaluate the association between socioeconomic indicators and use of dental services in a sample of 3,048 Mexican schoolchildren. The dependent variable 'use of dental services' and independent variables were collected through a questionnaire addressed to mothers. To determine oral health needs, a clinical oral examination was performed. The adjusted associations were evaluated using polytomous logistic regression. Adjusted by gender, the categories associated with both preventive and curative services were age, greater frequency of brushing, earlier initiation of brushing, healthcare coverage, and better socioeconomic status. In addition, for preventive services only, use of services was associated with enrolment in private school, and for curative services only, family's possession of an automobile and having moderate to high oral health needs. The results suggest the existence of socioeconomic inequalities in the use of both preventive and curative dental services by Mexican children.

Sociobehavioral factors influencing toothbrushing frequency among schoolchildren.

BACKGROUND: Toothbrushing may help prevent some oral health diseases considered to be public health problems--in particular, certain presentations of chronic periodontal diseases and dental caries. The authors conducted a study to identify variables associated with frequency of toothbrushing with toothpaste among schoolchildren aged 6 to 12 years. METHODS: The authors collected data regarding sociodemographic, socioeconomic, oral hygiene and attitudinal variables through a cross-sectional questionnaire administered to 1,373 schoolchildren from Campeche, Mexico. They categorized toothbrushing frequency as "two times a day or fewer" and "three times a day or more." The authors used logistic regression to analyze the data. RESULTS: Multivariate analyses showed that girls (odds ratio [OR]=1.41), older children (OR=1.07) and offspring of mothers with higher levels of schooling (OR=1.07) were more likely to brush more frequently. The results showed an interaction between the attitude of the mother toward oral health and the use of dental care in the previous 12 months. When mothers had a positive attitude, the likelihood of their children's brushing more frequently was higher among those who received dental care in the previous 12 months (OR=2.43; P

[Enamel defects, caries in primary dentition and fluoride sources: relationship with caries in permanent teeth]. / Defectos del esmalte, caries en dentición primaria, fuentes de fluoruro y su relación con caries en dientes permanentes.

OBJECTIVE: To examine the relationship between the presence of enamel defects, dental caries in primary teeth, and exposure to various fluoride technologies and the presence of dental caries in permanent teeth in children with mixed dentition. MATERIALS AND METHODS: A cross-sectional study was conducted in 713 children aged 6-9 years old in 4 elementary schools in Campeche, Mexico through the use of a questionnaire for the mothers and an oral examination in the children. The dependent variable was the prevalence of caries in permanent dentition. RESULTS: The mean number of decay, missing or filling teeth in primary dentition (dmft) and in permanent dentition (DMFT) was 2.48 (2.82) (deft > 0 = 58.9%) and 0.40 (0.98) (DMFT > 0 = 18.2%), respectively. The significant caries index (SiC), which is calculated in deciduous dentition, was 5.85 for 6 year-olds. Multivariate logistic regression adjusted for variables related to fluoride exposure revealed that older age (OR = 2.99), a deft of > 0 (OR = 5.46), and lower maternal educational level (OR = 1.57) were significantly associated with a higher number of dental caries in permanent teeth. An interaction between sex and enamel defects was also found. CONCLUSIONS: The number of dental caries in both primary and permanent dentitions was relatively smaller than that found in prior studies performed in Mexican populations. The results confirm that the presence of caries in primary dentition is strongly associated with caries in permanent dentition. No significant relationship was found between fluoride exposure and dental caries in permanent dentition.

Defectos del esmalte, caries en dentición primaria, fuentes de fluoruro y su relación con caries en dientes permanentes / Enamel defects, caries in primary dentition and fluoride sources: relationship with caries in permanent teeth

Objetivo: Explorar la relación entre la presencia de defectos del esmalte (DE), la experiencia de caries en la dentición temporal, y la exposición a diversas fuentes de fluoruros, con la presencia de caries en la dentición permanente de niños con dentición mixta. Material y métodos: Se realizó un estudio transversal en 713 sujetos de 6-9 años de edad de 4 escuelas de Campeche, México, mediante un cuestionario dirigido a las madres, y un examen clínico bucal a los niños. La variable dependiente fue la prevalencia de caries en la dentición permanente. Resultados: El promedio de dientes temporales cariados, extraídos y obturados (ceod) y dientes permanentes cariados, perdidos y obturados (CPOD) fue de 2,48 (2,82) (ceod > 0 = 58,9%) y 0,40 (0,98) (CPOD > 0 = 18,2%), respectivamente. El índice SiC (índice de caries significativa, calculado en la dentición temporal) fue de 5,85 para los niños de 6 años de edad. En el análisis de regresión logística multivariado permanecieron significativas, después de ajustar por variables de exposición a fluoruros, la mayor edad (odds ratio [OR] = 2,99), el ceod > 0 (OR = 5,46), la menor escolaridad de la madre (OR = 1,57) y una interacción entre sexo y defectos del esmalte. Conclusiones: Las caries en la dentición temporal y permanente fueron relativamente menores que las observaciones publicadas por otros estudios en México. Los resultados confirmaron que la caries en la dentición temporal se asoció fuertemente con la caries en la dentición permanente. No hubo una relación significativa entre las fuentes de fluoruro y la caries dental en la dentición permanente

Objective: To examine the relationship between the presence of enamel defects, dental caries in primary teeth, and exposure to various fluoride technologies and the presence of dental caries in permanent teeth in children with mixed dentition. Materials and methods: A cross-sectional study was conducted in 713 children aged 6-9 years old in 4 elementary schools in Campeche, Mexico through the use of a questionnaire for the mothers and an oral examination in the children. The dependent variable was the prevalence of caries in permanent dentition. Results: The mean number of decay, missing or filling teeth in primary dentition (dmft) and in permanent dentition (DMFT) was 2.48 (2.82) (deft > 0 = 58.9%) and 0.40 (0.98) (DMFT > 0 = 18.2%), respectively. The significant caries index (SiC), which is calculated in deciduous dentition, was 5.85 for 6 year-olds. Multivariate logistic regression adjusted for variables related to fluoride exposure revealed that older age (OR = 2.99), a deft of > 0 (OR = 5.46), and lower maternal educational level (OR = 1.57) were significantly associated with a higher number of dental caries in permanent teeth. An interaction between sex and enamel defects was also found. Conclusions: The number of dental caries in both primary and permanent dentitions was relatively smaller than that found in prior studies performed in Mexican populations. The results confirm that the presence of caries in primary dentition is strongly associated with caries in permanent dentition. No significant relationship was found between fluoride exposure and dental caries in permanent dentition

[Socioeconomic inequalities in oral health: dental caries in 6 to 12 year-old children]. / Desigualdades socioeconómicas en salud bucal: caries dental en niños de seis a 12 años de edad.

OBJECTIVE: To explore the association between caries indices in primary and permanent dentition and socioeconomic indicators at the individual and ecologic levels in 6-12 year old children. MATERIALS AND METHODS: A comparative analysis of two datasets depicting oral health status in Campeche, México, with 2,939 children distributed equally by age and sex, was carried out. Oral health indices were contrasted at different cut-off points in primary and permanent dentitions (dmft, DMFT, dmft+DMFT and SiC indices) with independent variables such as place of residence (urban, marginal-urban) and mother's highest level of schooling (years of formal education) as socioeconomic variables (SES), as well as other sociodemographic variables using models of binary logistic regression in STATA 8.2. RESULTS: The mean age was 8.85 +/- 1.83 years and 56.6% were girls. Nine models were generated in which changes in socioeconomic variables were linked to changes in oral health features in this community (both in terms of prevalence and severity), except for DMFT > 0 at 12 years of age. CONCLUSIONS: In general, children of lower SES had greater caries experience and higher caries severity, in both primary and permanent dentitions. The relationships between oral health disparities and independent variables were confirmed in children living in geographically contiguous areas.

[Dental caries in schoolchildren aged 6-12 years in Navolato, Sinaloa, México: experience, prevalence, severity and treatment needs]. / Caries dental en escolares de 6 a 12 añios de edad en Navolato, Sinaloa, México: experiencia, prevalencia, gravedad y necesidades de tratamiento.

INTRODUCTION: Dental caries is the most prevalent disease in children. OBJECTIVE: To determine the caries experience, prevalence, and severity in temporal and permanent dentition, likewise to establish the significant caries index in schoolchildren of Navolato, Sinaloa, Mexico as well as their treatment needs. MATERIAL AND METHODS: A cross sectional study in 3048 schoolchildren aged 6 to 12 years. All subjects were clinically examined by three examiners (kappa>0.85), according to World Health Organization (WHO) guidelines. Caries detection criteria used were the WHO's criteria and Pitts' lesion d1. RESULTS: The mean age was 8.81 +/- 1.79 years old and 52.2% were girls. In the temporal dentition; the dmft was 4.68 +/- 3.21 and caries prevalence of 90.2% (dmft>3 was 60.8%, and dmft>6 was 27.4%). The overall significant caries index was 10.52 for 6 year olds. The noncavitated lesions (d1) represented 37.1% of the "decay" component. In the permanent dentition; the DMFT was 3.24 +/- 2.72 and caries prevalence was 82.0% (DMFT>3 was 47.8%, and DMFT>6 was 9.0%). The overall significant caries index was 10.87 for 12 year olds. The noncavitated lesions (d1) represented 63.4% of the "decay" component. The majority, 89.6% and 81.1% of children needed at least one restoration of one and two dental surfaces, respectively. Girls were more affected by caries than boys in permanent dentition, but not in temporal dentition. The caries experience increased with age. CONCLUSIONS: We observed high indices of caries, and high prevalence, severity and treatment needs. Noncavitated lesions were higher in permanent dentition that in primary dentition.

Desigualdades socioeconómicas en salud bucal: caries dental en niños de seis a 12 años de edad / Socioeconomic inequalities in oral healt: dental caries in 6 to 12 year-old children

Objective. To explore the association between caries indices in primary and permanent dentition and socioeconomic indicators at the individual and ecologic levels in 6-12 year old children. Materials and methods. A comparative analysis of two dataseis depicting oral health status in Campeche, México, with 2,939 children distributed equally by age and sex, was carried out. Oral health indices were contrasted at different cut-off points in primary and permanent dentitions (dmft, DMFT, dmft+DMFT and SiC indices) with independent variables such as place of residence (urban, marginal-urban) and mother's highest level of schooling (years of formal education) as socioeconomic variables (SES), as well as other sociodemographic variables using models of binary logistic regression in STATA 8.2®. Results. The mean age was 8.85 ± 1.83 years and 56.6% were girls. Nine models were generated in which changes in socioeconomic variables were linked to changes in oral health features in this community (both in terms of prevalence and severity), except for DMFT > 0 at 12 years of age. Conclusions. In general, children of lower SES had greater caries experience and higher caries severity, in both primary and permanent dentitions. The relationships between oral health disparities and independent variables were confirmed in children living in geographically contiguous areas.

Objetivos. Explorar la existencia de desigualdades en la salud bucal a través de indicadores socioeconómicos, a nivel individual y ecológico, en una población de niños de seis a 12 años de edad. Material y métodos. Se realizó un análisis comparativo de dos estudios transversales de salud bucal en Campeche, México. Se incluyeron 2,939 niños distribuidos de igual manera por edad y sexo. Los resultados de dichos estudios fueron combinados y usados para explorar desigualdades socioeconómicas en salud bucal. La salud bucal fue medida a través de diferentes puntos de corte en índices de caries (ceod, CPOD, ceod + CPOD y SiC). Las variables independientes incluidas en el estudio fueron el área de residencia (urbana, conurbana) y la escolaridad de la madre (años de estudio), así como otras variables sociodemográficas que sirvieron para ajustar los modelos. Se generaron modelos de regresión logística binaria en STATA 8.2®. Resultados. Los nueve modelos generados revelaron que los cambios en las variables socioeconómicas se relacionaron con las manifestaciones de salud bucal en esta comunidad, tanto en términos de prevalencia como de severidad. La única excepción fue al comparar el indicador de caries CPOD > 0 a los 12 años de edad. Conclusiones. En general, los niños de menor posición socioeconómica tuvieron mayor experiencia y severidad de caries dental en la dentición temporal y permanente. Las discrepancias encontradas de los indicadores de caries a través de las variables independientes de interés ponen en evidencia las desigualdades sociales en salud bucal entre grupos viviendo en localidades contiguas.

Caries dental en escolares de 6 a 12 años de edad en Navolato, Sinaloa, México: experiencia, prevalencia, gravedad y necesidades de tratamiento / Dental caries in schoolchildren aged 6-12 years in Navolato, Sinaloa, México: experience, prevalence, severity and treatment needs

Introducción. La caries dental es una de las enfermedades más prevalentes en los niños. Objetivo. Determinar la experiencia, prevalencia y gravedad de caries en la dentición temporal y permanente; establecer igualmente el índice de caries significativa (SiC, por sus siglas en inglés), en escolares de Navolato, Sinaloa, México, así como sus necesidades de tratamiento. Materiales y métodos. Se realizó un estudio transversal en 3.048 niños de 6 a 12 años de edad. Los sujetos fueron examinados clínicamente por tres examinadores (índice k > 0,85), de acuerdo a los lineamientos establecidos por la Organización Mundial de la Salud (OMS). Para la detección de caries se empleó el criterio de la OMS y la lesión d1 de Pitts. Resultados. La media de edad fue de 8,81±1,79 años y el porcentaje de niñas fue de 52,2 por ciento. En la dentición temporal, el ceod (Promedio de dientes cariados, extraídos/perdidos y obturados) fue de 4,68±3,21 y la prevalencia de caries 90,2 por ciento (ceod > 3 = 60,8 por ciento). El índice significativo de caries fue de 10,52 para los niños de seis años de edad. Las lesiones no cavitadas (d1) representaron 37,1 por ciento del componente "cariados". En la dentición permanente, el índice CPOD (Promedio de dientes permanentes cariados, perdidos y obturados) fue de 3,24±2,72 y la prevalencia de caries, 82 por ciento (CPOD > 3 = 47,8 por ciento). El índice de caries significativa fue de 10,87 para los niños de 12 años. Las lesiones no cavitadas representaron 63,4 por ciento del componente "cariados". Al menos 81,1 por cientode los niños necesitó la restauración de una superficie dental y 89,6 por ciento, de dos. Las niñas presentaron más caries que los niños en su dentición permanente. Se observó que conforme aumentó la edad se incrementó la experiencia de caries.

Prevalence and associated factors for temporomandibular disorders in a group of Mexican adolescents and youth adults.

The objective of the study was to determine the prevalence and associated factors for temporomandibular disorders (TMD) in a university sample of Campeche, Mexico. A cross-sectional study was carried out in 506 subjects aged 14-25 years. The subjects were requested to answer questionnaires concerning sociodemographic variables, history of stress, lifestyle, and anxiety. The Research Diagnostic Criteria for TMD (RDC/TMD) was used as TMD diagnostic system by four examiners capacitated and standardized. Data were analyzed using binary logistic regression in STATA. The results showed that 46.1% of the subjects exhibited some grade of TMD. Logistic regression analysis with TMD as the dependent variable identified sex (women odds ratio [OR]=1.7), bruxism (OR=1.5), anxiety (OR=1.6), unilateral chewing (OR=1.5), and an interaction between number of tooth loss and stress as the most significant associated variables, thus (1) the effect of having high levels of stress in the group of subjects without tooth loss (OR=1.2; 95% confidence interval [CI]=0.7-1.8) and (2) the effect of having high levels of stress in the group of subjects with at least one tooth lost (OR=2.4; 95% CI=1.01-5.9). The variables associated with diagnosis of pain were principally psychosocial (stress and anxiety), whereas for the non-pain diagnosis group, the variables were clinical, such as bruxism, chewing site preference, and restorations in mouth. We found associations among variables that were similar to findings in other studies, such as bruxism, tooth loss, stress, and anxiety. The final model explains that the effect of stress on TMD depends of the tooth loss, controlling for sex, bruxism, unilateral chewing, and anxiety. Finally, it can be concluded that the variables associated with pain and non-pain diagnosis were of distinct nature.

[Prevalence of dental fluorosis and additional sources of exposure to fluoride as risk factors to dental fluorosis in schoolchildren of Campeche, Mexico]. / Prevalencia de fluorosis dental y fuentes adicionales de exposición a fluoruro como factores de riesgo a fluorosis dental en escolares de Campeche, México.

OBJECTIVE: To determine the prevalence and severity of dental fluorosis, and to evaluate supplementary fluoride sources as potential risk factors to fluorosis in school children aged 6-9. MATERIAL AND METHODS: A cross-sectional study was carried out in 320 children attending elementary schools protected by a public preventive dental program in the city of Campeche, Mexico. A self-administered questionnaire directed to the mothers was delivered through the schools and collected in the same way. The examiners were trained and calibrated (kappa > 0.90) in modified Dean's Index. The fluorosis community index (FCI) was calculated. Bivariate analyses were made with Chi2 test; odds ratios (OR) and 95% confidence intervals were calculated. Logistic regression was used in the final model. RESULTS: Fluorosis prevalence was 56.3%, with very mild fluorosis present in 45% of children, mild in 10%, and severe in just 1.3%. The FCI was 0.7. The multivariate model showed that the effect of the supplementary fluoride sources was different between children that started brushing with toothpaste before two years of age (OR = 6.15; IC 95% = 2.03-18.67) and after (OR = 2.14; IC 95% = 1.16-3.94). CONCLUSIONS: Fluorosis prevalence was high for mild modalities, and low for more severe levels. According to FCI the dental fluorosis constitute a public health problem in the studied sample. Exposure to diverse fluoride sources -above and beyond the fluoridated salt program- was a risk factor for dental fluorosis in this community. Results suggest that toothpaste use in children two years of age and younger should be cautious, limited to follow current guidelines, and supervised by parents to minimize the risk of dental fluorosis.