Multivariable analysis of tooth loss in subjects with severe periodontitis over 4-year natural progression / 北京大学学报(医学版)

OBJECTIVE@#To evaluate the characteristics of severe periodontitis with various number of tooth loss during 4-year natural progression, and to analyze the factors related to higher rate of tooth loss.@*METHODS@#A total of 217 patients aged 15 to 44 years with severe periodontitis were included, who participated in a 4-year natural progression research. Data obtained from questionnaire survey, clinical examination and radiographic measurement. Tooth loss during 4-year natural progression was evaluated. The baseline periodontal disease related and caries related factors were calculated, including number of teeth with bone loss > 50%, number of missing molars, number of teeth with widened periodontal ligament space (WPDL), number of teeth with periapical lesions and etc. Characteristics of populations with various number of tooth loss and the related factors that affected higher rate of tooth loss were analyzed.@*RESULTS@#In 4 years of natural progression, 103 teeth were lost, and annual tooth loss per person was 0.12±0.38. Nine patients lost 3 or more teeth. Thirty-four patients lost 1 or 2 teeth, and 174 patients were absent of tooth loss. Molars were mostly frequent to lose, and canines presented a minimum loss. The number of teeth with WPDL, with periapical lesions, with intrabony defects, with probing depth (PD)≥7 mm, with PD≥5 mm, with clinical attachment loss≥5 mm, with bone loss > 50% and with bone loss > 65% were positively correlated to number of tooth loss. Results from orderly multivariate Logistic regression showd that the number of teeth with bone loss > 50% OR=1.550), baseline number of molars lost (OR=1.774), number of teeth with WPDL (1 to 2: OR=1.415; ≥3: OR=13.105), number of teeth with periapical lesions (1 to 2: OR=4.393; ≥3: OR=9.526) and number of teeth with caries/residual roots (OR=3.028) were significant risk factors related to higher likelihood of tooth loss and multiple tooth loss.@*CONCLUSION@#In 4 years of natural progression, the number of teeth with bone loss > 50%, baseline number of missing molars, number of teeth with WPDL, baseline number of teeth with periapical lesions and number of teeth with caries/residual roots were significantly related to higher risk of tooth loss and multiple tooth loss among Chinese young and middle-aged patients with severe periodontitis in rural areas.

The association between sleep disturbances and tooth loss among post-stroke patients / Prevalência de edentulismo e distúrbios de sono após acidente vascular cerebral

ABSTRACT Background: Loss of teeth has been associated with neurological and sleep disorders. It is considered to be a predictor of stroke and leads to modifications of airway patency and predisposition to obstructive sleep apnea. Objective: To investigate sleep quality, risk of obstructive sleep apnea and excessive sleepiness among post-stroke patients with tooth loss attending the Neurovascular Clinic of the Federal University of São Paulo. Methods: The prevalence rates of different types of stroke were assessed among 130 patients with different degrees of tooth loss, along with the presence of sleep disturbances, risk of obstructive sleep apnea and excessive daytime sleepiness. Results: The prevalence of ischemic stroke was 94.6%, with either no significant disability or slight disability. Our sample had poor sleep quality, and a high risk of obstructive sleep apnea, but without excessive daytime sleepiness. Half of our sample had lost between 9 and 31 teeth, and more than 25% had edentulism. The majority used full removable dental prostheses, and more than half of these individuals slept without removing the prosthesis. Conclusions: We found high prevalence of poor sleep quality and high risk of obstructive sleep apnea among post-stroke patients with tooth loss. This indicates the need for further studies on treating and preventing sleep disturbances in stroke patients with tooth loss.

RESUMO Antecedentes: A perda de dentes tem sido associada a distúrbios neurológicos e do sono. É considerada um preditor de acidente vascular cerebral (AVC), com modificações na permeabilidade das vias aéreas e predisposição à apneia obstrutiva do sono. Objetivo: Investigar a qualidade do sono, o risco de apneia obstrutiva do sono e a sonolência excessiva em pacientes pós-AVC com perda dentária, atendidos na Clínica Neurovascular da Universidade Federal de São Paulo. Métodos: O estudo avaliou a prevalência de diferentes tipos de AVC em 130 pacientes com diferentes graus de perda dentária e a presença de distúrbios do sono, risco de apneia obstrutiva do sono e sonolência excessiva. Resultados: A prevalência de AVC isquêmico foi de 94,6%, sem deficiência significativa ou deficiência leve. Nossa amostra tinha má qualidade de sono e alto risco de apneia obstrutiva do sono, sem sonolência diurna excessiva. Metade de nossa amostra perdeu entre nove e 31 dentes, e mais de 25% tiveram edentulismo. A maioria usava próteses dentárias totalmente removíveis e, desses pacientes, mais da metade dormia com elas. Conclusões: Encontramos alta prevalência de má qualidade do sono e alto risco de apneia obstrutiva do sono em pacientes pós-AVC com perda dentária. Isso indica a necessidade de mais estudos sobre o tratamento e a prevenção de distúrbios do sono em pacientes com AVC e perda dentária.

Impact of Early Loss of Lower First Permanent Molars on Third Molar Development and Position

ABSTRACT Objective: To evaluate the effects of unilateral loss of the lower first permanent molar (L6) on the position and development of the lower third molar (L8). Material and Methods: Fifty-four panoramic radiographs of subjects with unilateral loss of L6 were examined. The L8 on the side of the L6 loss was compared with the L8 in the hemiarch without L6 loss (contralateral). The effect of L6 loss on the positioning of L8 was examined in all the samples (n=54), whereas the effect on the development of the third molar was examined in 38 patients with L8 with incomplete root formation. The Signs statistical test was used to evaluate the comparison between loss and contralateral hemiarches. Results: In 20 (37%) of 54 subjects, the L8 was better positioned in the hemiarch with loss of the lower first molar (p<0.001) compared with the control side. In the remaining 34 subjects, no difference was found. When only the L8 considered as impacted on the control side was examined (n=30), the cases with better positioning on the side with L6 loss increased to 66.6% (p<0.001). Conclusion: The loss of lower first molars improves the position of the lower third molar during its active eruption, mainly when the lower third molar is impacted. However, L6 loss does not affect the root development of lower third molars.

The role of health literacy as a factor associated with tooth loss / O papel da literacia em saúde como fator associado às perdas dentárias

ABSTRACT OBJECTIVE The objective was to analyze the role of health literacy (HL) as a factor associated with tooth loss among users of the Brazilian Health System with chronic non-communicable diseases. METHODS The cross-sectional analytical study was conducted with adult and elderly users chosen at ten Family Health Clinics in a draw in the town of Piracicaba, São Paulo State, Brazil. A questionnaire was applied with sociodemographic data (sex, age, skin color and education), behavioral data (brushing and flossing), determinants in health (type of dental health services and how often) and clinical data (pain). Mouth conditions were collected by intraoral examination of visible dental biofilm and community Pediodontal Index. The systemic clinical conditions (blood glucose, glycated hemoglobin and blood pressure) were extracted from the medical records. The explanatory variable was HL (low, medium and high), measured with the Health Literacy Scale (HLS-14). RESULTS The outcome was tooth loss measured by the index of decayed, missing and filled teeth. Logistic regression was performed using a conceptual model for HL (p < 0.05). For the 238 subjects, the mean age was 62.7 years (± 10.55). Tooth loss was associated with HL in regression models adjusted by type of dental service, dental frequency, and dental floss. In the final model, the factors associated with tooth loss are older age (OR = 1,12; 95%CI: 1,07-1,17), a lower education (OR = 3,43; 95%CI: 1,17-10,10), irregular use of dental floss (OR = 4,58; 95%CI: 1.75 in-7,31), irregular use of dental services (n = 2,60; 95% 1,32-5,12), periodontal pocket (> 4 mm) (n = 0,31; 95%CI: 0,01-0,08), having visible dental biofilm (OR = 7,23; 95%CI: 3,19-16,41) and a higher level of blood sugar (glucose) (n = 1,98; 95%CI: 1.00-3,92). CONCLUSIONS tooth loss was associated with HL when adjusted by health behaviors; when sociodemographic variables and clinical conditions were included, it was less significant. In the final model, behaviors, determinants in health and clinical conditions were risk indicators of tooth loss, showing the multifactorial nature of this phenomenon.

RESUMO OBJETIVO O objetivo foi analisar o papel da Literacia em Saúde (LS) como fator associado às perdas dentárias entre usuários do Sistema Único de Saúde com doenças crônicas não transmissíveis. MÉTODOS O estudo transversal e analítico foi conduzido com usuários adultos e idosos selecionados em dez Unidades de Saúde da Família sorteadas, em Piracicaba - SP, Brasil. Foi aplicado um questionário com dados sociodemográficos (sexo, idade, cor da pele e escolaridade), comportamentais (escovação e uso de fio dental), determinantes em saúde (tipo e frequência de uso de serviço de saúde médico e odontológico) e clínica (dor). As condições bucais foram coletadas por exame intrabucal do biofilme dental visível e Índice Pediodontal Comunitário. As condições clínicas sistêmicas (glicemia, hemoglobina glicada e pressóricas) foram extraídas dos prontuários. A variável explanatória foi a LS (baixa, média e alta), medida pelo Health Literacy Scale (HLS-14). RESULTADOS O desfecho foi à perda dentária medida pelo Índice de dentes permanentes cariados, perdidos e obturados. Foi realizada regressão logística com uso de um modelo conceitual para a LS (p < 0,05). Para os 238 indivíduos, a média de idade foi 62,7 anos (± 10,55). A perda dentária esteve associada à LS nos modelos de regressão ajustados por tipo de serviço odontológico, frequência odontológica e uso de fio dental. No modelo final, a perda dentária teve como fatores associados a maior idade (OR = 1,12; IC95% 1,07-1,17), menor escolaridade (OR = 3,43; IC95% 1,17-10,10), ao uso irregular de fio dental (OR = 4,58; IC95% 1,75-7,31), uso irregular do serviço odontológico (OR = 2,60; IC95% 1,32-5,12), bolsa periodontal (> 4mm) (OR = 0,31; IC95% 0,01-0,08), ter biofilme dental visível (OR = 7,23; IC95% 3,19-16,41) e maior índice de glicemia (OR = 1,98; IC95% 1,00-3,92). CONCLUSÕES A perda dentária esteve associada à LS quando ajustada por comportamentos em saúde, a partir da inclusão das variáveis sociodemográficas e condições clínicas ela perdeu a significância. No modelo final, comportamentos, determinantes em saúde e condições clínicas foram indicadores de risco da perda dentária, demonstrando a multifatorialidade envolvida neste fenômeno.

Acúmulo de risco decorrente da pobreza e perda dentária aos 31 anos, coorte de nascidos vivos de 1982, Pelotas, Rio Grande do Sul, Brasil / Accumulated risk from poverty and tooth loss at 31 years of age: the 1982 live birth cohort in Pelotas, Rio Grande do Sul State, Brazil / Acumulación de riesgo derivado de la pobreza y pérdida dental a los 31 años: cohorte de nacidos vivos de 1982 en Pelotas, Rio Grande do Sul, Brasil

Resumo: O objetivo foi estimar o efeito do acúmulo de risco decorrente da pobreza na perda dentária aos 31 anos. Foram utilizados dados longitudinais da coorte de nascidos vivos de 1982, na cidade de Pelotas, Rio Grande do Sul, Brasil. Para a construção das variáveis de trajetória de renda, foram utilizados quatro pontos do tempo: nascimento, 15, 24 e 30 anos. Os fatores de confusão avaliados foram sexo, escolaridade materna, cor da pele da mãe e fumo aos 24 anos. Como potenciais mediadores, foram utilizados a trajetória de serviço odontológico e a cárie dentária baseada no Significant Index Caries (SIC). Para criação da variável de trajetória do modelo de acúmulo de risco, utilizou-se abordagem analítica de group-based trajectory modeling. O desfecho estudado foi o número de dentes perdidos aos 31 anos. A média de dentes perdidos aos 31 anos foi de 1,25 dente. No modelo de acúmulo de risco, após o ajuste para os confusores e mediadores, os indivíduos que estiveram pobres em um ou dois pontos do tempo apresentaram razão de risco - RR = 1,92 (IC95%: 1,40-2,63), e os que apresentaram três ou quatro episódios de pobreza apresentaram RR = 1,97 (IC95%: 1,24-3,13) para a perda dentária. Os resultados evidenciam o efeito do acúmulo de pobreza ao longo da vida na perda dentária. O efeito é ampliado entre os indivíduos que permaneceram mais tempo expostos à pobreza. As políticas públicas que visem a melhorar as condições de renda atuarão também na redução da perda dentária.

Abstract: The objective was to estimate the effect of accumulated risk from poverty and tooth loss at 31 years, using longitudinal data from the 1982 live birth cohort in Pelotas, Rio Grande do Sul State, Brazil. The income trajectory variables were built with four time points: birth and 15, 24, and 30 years of age. Potential confounding factors were sex, maternal schooling, maternal skin color, and smoking at 24 years. Potential mediators used the history of dentistry services use and caries based on the Significant Index Caries (SIC). The trajectory variable in the accumulated risk model was created with group-based trajectory modeling. The target outcome was the number of missing teeth at 31 years. Mean number of missing teeth at 31 years was 1.25. In the accumulated risk model after adjusting for confounders and mediators, individuals that were poor at one or two time points showed risk ratio - RR = 1.92 (95%CI: 1.40-2.63), and those with three or four episodes of poverty showed RR = 1.97 (95%CI: 1.24-3.13) for tooth loss. The results highlight the effect of lifetime poverty on tooth loss. The effect was expanded in individuals that were exposed to poverty longer. Public policies aimed at improving income conditions also help reduce tooth loss.

Resumen: El objetivo fue estimar el efecto de la acumulación de riesgo, derivado de la pobreza, en la pérdida dental a los 31 años. Se utilizaron datos longitudinales de la cohorte de nacidos vivos de 1982, en la ciudad de Pelotas, Rio Grande do Sul, Brasil. Para la construcción de las variables de trayectoria de renta se utilizaron cuatro puntos del tiempo: nacimiento, 15, 24 y 30 años. Los factores de confusión evaluados fueron: sexo, escolaridad materna, color de la piel de la madre y consumo de tabaco a los 24 años. Como potenciales mediadores se utilizó la trayectoria de servicios odontológicos y caries dental, basada en el Significant Index Caries (SIC). Para la creación de la variable de trayectoria del modelo de acumulación de riesgo se utilizó el abordaje analítico de group-based trajectory modeling. El resultado estudiado fue el número de dientes perdidos a los 31 años. La media de dientes perdidos a los 31 años fue 1,25 dientes. En el modelo de acumulación de riesgo, tras el ajuste para confusores y mediadores, los individuos que eran pobres en uno o dos puntos del tiempo presentaron razón de riesgo - RR = 1,92 (IC95%: 1,40-2,63) y quienes presentaron tres o cuatro episodios de pobreza presentaron RR = 1,97 (IC95%: 1,24-3,13) respecto a la pérdida dental. Los resultados evidencian el efecto de la acumulación de pobreza a lo largo de la vida en la pérdida dental. El efecto se amplía entre los individuos que permanecieron más tiempo expuestos a la pobreza. Las políticas públicas que tengan por objetivo mejorar las condiciones de renta actuarán también en la reducción de la pérdida dental.

Etiología de las Pérdidas Dentales en Pacientes Rehabilitados con Prótesis sobre Implantes / Etiology of Tooth Loss in Patients Rehabilitated with Dental Implants

RESUMEN: El objetivo de esta investigación fue analizar la etiología de las pérdidas dentales en pacientes rehabilitados con prótesis sobre implantes. Se realizó un estudio transversal con informaciones de 93 pacientes de una clínica privada que recibieron tratamiento con implantes en el período de 2000 a 2009. Los datos fueron recolectados a través de las fichas clínicas, documentaciones radiográficas y fotografías de los casos clínicos. Se levantaron datos sobre género, edad, nivel de escolaridad, hábito de fumar, tipo de diente extraído y razón de la extracción. Los resultados mostraron que la razón periodontal fue el principal motivo de las pérdidas dentales, representando el 24,7 %, seguida por las fracturas radiculares con pines metálicos (23,7 %) y caries secundarias (15,1 %). En los pacientes menores de 40 años, los traumatismos dentales y las fracturas radiculares con pino fueron responsables de la mayoría de las pérdidas. Las razones de las pérdidas dentales mostraron significancia estadística con la variable edad (p<0,05). El género, el hábito de fumar y el grado de escolaridad no mostraron asociación significativa (p>0,05) con las razones de las pérdidas dentales.

ABSTRACT: The aim of this study was to analyze the etiology of tooth loss in patients rehabilitated with dental implants. Was conducted a cross-sectional study with data from 93 patients from a private clinic who were treated with implants from the year 2000 until 2009. Data were collected through medical records, radiographic documentation and photographs of clinical cases. Data on sex, age, education level, smoking habits, teeth loss localization and extraction ratio were analyzed. The results showed that periodontal disease was the main reason for tooth loss, accounting for 24.7 %, followed by root fractures with posts (23.7 %) and secondary caries (15.1 %). In patients below 40 years, dental trauma and root fractures were responsible for most of the losses. The reasons for tooth loss showed statistical significance with the age (p<0.05). Sex, smoking habits and education showed no significant association (p>0.05) with the reasons of the tooth loss.

Relationship between alcoholism addiction and periodontitis. an in vivo study using drinking-in-darkness protocol in rats

Periodontal disease (PD) has been considered a probable risk factor for several systemic diseases. among them, PD is presumed to be one of the possible etiologies of chronic illness of the central nervous system. In this context, poor oral health and PD is associated with substance abuse in humans. however, if periodontal lesions can produce addiction is unknown. this paper aims to evaluate the possibility that chronic periodontal injury (CPL) can cause ethanol binge intake in drink-in-darkness (DID) protocol in rats. in CPL group (n=10) experimental damage was done to the periodontal tissue of the second maxillary molar, the control group (n=9) received sham injury. forty-three days after CPL the intake of ethanol was assessed using several concentrations in DID experiment. during the DID experiment, we observed significant differences between the binge-type consumption of ethanol at the lowest concentration of 10 percent (p=0.01). differences in consumption of 20 percent ethanol are observed during a few days (p=0.04), and there are no differences in consumption at 40 percent concentration of ethanol (p=0.2). it is concluded that chronic periodontal lesion leads to alcoholism in wistar rats.

Estudo prospectivo da perda dentária em uma coorte de idosos dentados / Prospective study on tooth loss in a cohort of dentate elderly / Estudio prospectivo de la pérdida dental en una cohorte de ancianos dentados

Resumo: Este trabalho teve como objetivo avaliar fatores associados à perda dentária entre idosos de 60 anos e mais de idade num período de observação de quatro anos. Uma coorte de idosos dentados representativa da população da cidade de São Paulo, Brasil, participou do estudo. O desfecho foi a incidência de dentes perdidos entre os anos de 2006 a 2010. As variáveis independentes características demográficas, socioeconômicas, de uso e acesso a serviços de saúde, comportamento, morbidade referida, estado cognitivo, capacidade funcional, estado da dentição e uso de prótese foram medidas em 2006 e o desfecho em 2010. Utilizaram-se modelos de regressão binomial negativa. Participaram 440 indivíduos dentados. A análise final mostrou maior probabilidade de perda dentária em idosos que utilizavam duas próteses removíveis (RR = 1,57; IC95%: 1,02-2,41), que avaliaram sua saúde bucal como regular (RR = 1,62; IC95%: 1,11-2,36), ou ruim/muito ruim (RR = 1,87; IC95%: 1,11-3,17), do sexo masculino (RR = 1,74; IC95%: 1,28-2,37), e que moravam sozinhos (RR = 2,03; IC95%: 1,11-3,72).

Abstract: The aim of this study was to assess factors associated with tooth loss in elderly 60 years or older during a four-year observation period. A representative cohort of dentate elderly from the city of São Paulo, Brazil, participated in the study. The outcome was teeth loss incidence from 2006 to 2010. Demographic and socioeconomic characteristics, health services access and use, behavior, reported diseases, cognitive status, functional status, state of dentition, and use of dental prosthesis were recorded as independent variables in 2006 and the outcome was measured in 2010. Negative binomial regression models were used. Participation included 440 dentate elderly. Increased likelihood of tooth loss was associated with use of two removable prostheses (RR = 1.57; 95%CI: 1.02-2.41), fair self-rated oral health (RR = 1.62; 95%CI: 1.11-2.36), bad/very bad self-rated oral health (RR = 1.87; 95%CI: 1.11-3.17), male gender (RR = 1.74; 95%CI: 1.28-2.37), and living alone (RR = 2.03; 95%CI: 1.11-3.72).

Resumen: Este estudio tuvo como objetivo evaluar factores asociados a la pérdida dental entre ancianos de 60 años y más de edad, en un período de observación de 4 años. Participó en el estudio una cohorte de ancianos dentados, representativa de la población de la ciudad de São Paulo, Brasil. El resultado fue la incidencia de dientes perdidos entre los años de 2006 y 2010. Se midieron en 2006 las variables independientes, características demográficas, socioeconómicas, de uso y acceso a servicios de salud, comportamiento, morbilidad referida, estado cognitivo, capacidad funcional, estado de la dentición y el uso de prótesis. Se analizó el resultado en 2010. Se utilizaron modelos de regresión binomial negativa. Participaron 440 individuos dentados, cuyo análisis final mostró mayor probabilidad de pérdida dental en ancianos que utilizaban dos prótesis removibles (RR = 1,57; IC95%: 1,02-2,41), que evaluaron su salud bucal como regular (RR = 1,62; IC95%: 1,11-2,36) o mala/muy mala (RR = 1,87; IC95%: 1,11-3,17), del sexo masculino (RR = 1,74; IC95%: 1,28-2,37) y que vivían solos (RR = 2,03; IC95%: 1,11-3,72).

Contextual and individual indicators associated with the presence of teeth in adults / Indicadores contextuais e individuais associados à presença de dentes em adultos

OBJETIVO Analisar se condições socioeconômicas contextuais e tempo de disponibilidade de água fluoretada estão associados ao número de dentes presentes. MÉTODOS Neste estudo transversal, foram analisados dados de 1.720 adultos entre 20 e 59 anos residentes em Florianópolis, SC, em 2009. O desfecho investigado foi o autorrelato do número de dentes presentes. As variáveis independentes individuais incluíram sexo, faixa etária, cor da pele, anos de estudo e renda per capita familiar. Como variável de controle, utilizou-se o tempo de residência. As exposições contextuais foram o tempo de disponibilidade da água fluoretada nos domicílios e a variável socioeconômica para os setores censitários, elaborada a partir da análise fatorial da renda média do setor, escolaridade média e percentual de domicílios com água tratada. Foi realizada regressão logística multinível e foram testadas interações interníveis. RESULTADOS Residentes nas áreas intermediárias e mais pobres e aqueles com menos tempo de disponibilidade de água fluoretada apresentaram menos dentes presentes comparados àqueles em melhor posição socioeconômica e com disponibilidade de água fluoretada por maior período (OR = 1,02; IC95% 1,01;1,02). Houve interação entre o tempo de disponibilidade de água fluoretada, renda per capita familiar e anos de estudo. A proporção de indivíduos do estrato mais pobre e menos escolarizado, que apresentou menos dentes presentes, foi maior nas regiões com menor tempo de disponibilidade de flúor na água. CONCLUSÕES As piores condições socioeconômicas contextuais associaram-se à chance de ter menos dentes presentes na idade adulta, da mesma forma que o menor tempo de fluoretação da água. Políticas públicas que visem a reduzir desigualdades socioeconômicas e ampliem o acesso à saúde, como a fluoretação da água de abastecimento podem, futuramente, contribuir para reduzir as perdas dentárias.(AU)

OBJECTIVE The objective of this study was to analyze whether socioeconomic conditions and the period of availability of fluoridated water are associated with the number of teeth present. METHODS This cross-sectional study analyzed data from 1,720 adults between 20 and 59 years of age who resided in Florianópolis, SC, Southern Brazil, in 2009. The outcome investigated was the self-reported number of teeth present. The individual independent variables included gender, age range, skin color, number of years of schooling, and per capita household income. The duration of residence was used as a control variable. The contextual exposures included the period of availability of fluoridated water to the households and the socioeconomic variable for the census tracts, which was created from factor analysis of the tract's mean income, education level, and percentage of households with treated water. Multilevel logistic regression was performed and inter-level interactions were tested. RESULTS Residents in intermediate and poorer areas and those with fluoridated water available for less time exhibited the presence of fewer teeth compared with those in better socioeconomic conditions and who had fluoridated water available for a longer period (OR = 1.02; 95%CI 1.01;1.02). There was an association between the period of availability of fluoridated water, per capita household income and number of years of education. The proportion of individuals in the poorer and less-educated stratum, which had fewer teeth present, was higher in regions where fluoridated water had been available for less time. CONCLUSIONS Poor socioeconomic conditions and a shorter period of availability of fluoridated water were associated with the probability of having fewer teeth in adulthood. Public policies aimed at reducing socioeconomic inequalities and increasing access to health services such as fluoridation of the water supply may help to reduce tooth loss in the future.(AU)

Diagnóstico etiológico de la pérdida dentaria erosiva en niños / Etiological diagnosis of erosive dental loss in children

La pérdida de tejido dentario por erosión es una lesión que se ha incrementado en los últimos años. Los datos mundiales de prevalencia muestran valores de hasta el 35 por ciento, según los indicadores utilizados y población estudiada. Objetivo: estimar la prevalencia de erosión dental en escolares de la CABA y establecer asociación con factores relacionados con estilo de vida. Materiales y métodos: se realizó un estudio observacional, descriptivo, en 189 niños que concurren a escuelas de la CABA, edad (x=8,48 +- 2,3 años) previo consentimiento informado. Los criterios de exclusión fueron: alumnos portadores de ortodoncia, con riesgo médico incrementado o con defectos estructurales del esmalte. Los padres de la población seleccionada respondieron un cuestionario con encuestador que incluía información acerca del estilo de vida. Se diagnosticó erosión mediante el registro de los índices de Smith y Knight (SyK) y de la Encuesta Nacional de Salud Oral del Reino Unido (CDHS). Se realizó el análisis estadístico mediante medidas de tendencia central y dispersión chi-cuadrado, coeficiente de correlación de Spearman y Odds Ratio. Resultados: según el índice de CDHS, 65,6 por ciento de los niños presentó pérdida erosiva y 91,5 por ciento acorde a SyK. Se encontraron diferencias estadísticamente significativas entre el consumo de gaseosas regulares e índice de SyK (x2 de 4,3 p=0,036). El OR para el consumo de gaseosa e índice de SyK fue de 2,9 (IC=1,03 - 8,49). No se encontró asociación entre erosión y el resto de las bebidas analizadas. Conclusiones: la estimación de la prevalencia fue elevada con los indicadores empleados y se encontró asociación positiva entre erosión (SyK) y el consumo de gaseosas...

Periodontitis agresiva infantil en un niño de 4 años / Aggressive infantile periodontitis in a 4-year-old boy

Se define a la periodontitis agresiva como una forma agresiva y rápidamente destructiva de enfermedad, caracterizada por la pérdida severa del ligamento periodontal y hueso alveolar. Si bien la mayor prevalencia se ubica en la población adulta, se han registrado casos en niños y adolescentes. Se reporta el caso clínico de un niño de 4 años de edad que concurre a la consulta en el año 2010 por pérdida prematura de piezas dentarias. La evaluación de los exámenes de rutina y las radiografías con las que acudió permitieron descartar una periodontitis como manifestación de una enfermedad sistémica. Se confirma el diagnóstico de periodontitis infantil agresiva, por medio de examen microbiológico y ténica PCR. El tratamiento indicado fue terapia básica, antibioticoterapia y controles periódicos. Luego de tre años no hay signos clínicos de la enfermedad. El diagnóstico preciso, sumado a la motivación constante y los controles periódicos, hacen posible la detención del avance de la enfermedad...

O acesso a informacao sobre higiene bucal e as perdas dentarias por carie entre adultos / Access to information on oral hygiene and tooth loss due to caries among adults

Objetivou-se testar a associação entre perdas dentárias por cárie (PDC) e variáveis relativas ao acesso a informações em saúde bucal. Foram analisados dados de 780 adultos (35-44 anos) participantes de um estudo epidemiológico. A variável dependente foi o total de PDC e as independentes foram reunidas em blocos de variáveis: demográficas e socioeconômicas; utilização dos serviços odontológicos; acesso a informações em saúde bucal (informações sobre como evitar problemas bucais, sobre higiene bucal e sobre dieta) e; comportamentais. Conduziu-se regressão linear múltipla hierarquizada. O número médio de PDC foi de 7,03 (EP= 0,31) e 83% dos adultos haviam perdido algum dente por cárie. As PDC foram maiores entre os mais velhos, os com menor escolaridade, as mulheres, os que raramente ou nunca receberam informações sobre higiene bucal, os que escovavam os dentes uma vez ou menos ao dia e entre os que não usavam fio dental. Adultos que raramente/nunca receberam informações dos serviços odontológicos sobre higiene bucal perderam 2,15 dentes a mais por cárie que aqueles que sempre/frequentemente receberam tais informações (p = 0,000). Assim, sugere-se que a garantia do acesso à informação deva ser incentivada a fim de contribuir com maior equidade em saúde bucal. .

This study sought to establish the association between tooth loss due to dental caries and variables related to access to information on oral health in adults aged 35-44 years (n = 780) who participated in a large epidemiological study. The dependent variable was total tooth loss due to caries. The independent variables were grouped into blocks: demographic and socio-economic characteristics, use of dental service, access to oral health information (about how to prevent oral problems; oral hygiene; and diet), and behaviors. The analysis was conducted using hierarchical multiple linear regression. The mean number of lost teeth due to caries was 7.03. High numbers of lost teeth were higher among females and older adults; low levels of education; adults who rarely/never received oral hygiene information; those who brushed their teeth once a day or less; and those adults who did not use dental floss (p < 0.05). Adults who rarely/never received oral hygiene information from dental services lost 2.15 more teeth due to caries than those who always/often received such information (p = 0,000). Thus, it is suggested that access to information should be encouraged to contribute to greater equity in oral health. .

Reasons and pattern of tooth mortality as perceived by dental professionals in Udaipur City, Rajasthan, India / Percepção das razões e do padrão de mortalidade de dentes por profissionais de odontologia da cidade de Udaipur, Rajasthan, Índia

The aim of the present study was to assess the reasons for tooth mortality as perceived by the dentists for the patients attending the dental clinics and hospitals in Udaipur city. Material and methods: A closed-ended questionnaire survey was conducted among 211 dental practitioners of Udaipur city. The reasons for extraction of permanent and deciduous teeth among patients who had attended during the study period were categorized and the dentists were requested to record the age and sex of the patient, the tooth extracted, and the reason for the extraction. Results: A total of 785 permanent teeth were extracted. There was a significant difference observed between the number of extractions in males (53.1%) and females (46.9%) (P<0.029). Extractions were most common in the 55-64 years of age group (32.7%). Dental caries (206, 26.2%) and periodontitis (188, 23.9%) were the most frequent reasons for tooth extraction. Conclusion: The results of the present study revealed caries as the dominant reason given by dentists for tooth extraction in all the age groups of the subjects studied...

O objetivo do presente estudo foi avaliar a percepção das razões de mortalidade dentária pelos dentistas em relação aos pacientes que frequentam as clínicas odontológicas e hospitais na cidade de Udaipur. Materiais e métodos: Uma pesquisa com questionário fechado foi realizada com 211 dentistas da cidade de Udaipur. As razões para a extração de dentes permanentes e decíduos entre os pacientes que receberam atendimento no período do estudo foram categorizadas e os dentistas foram solicitados a registrar a idade e o sexo do paciente, o dente extraído e a razão para a extração. Resultados: Um total de 785 dentes permanentes foi extraído. Houve diferença significativa observada entre o número de extrações no sexo masculino (53,1%) e feminino (46,9%) (P < 0,029). Extrações foram mais comuns no grupo de idade de 55 a 64 anos (32,7%). Cárie dentária (206, 26,2%) e periodontite (188, 23,9%) foram os motivos mais frequentes para extração de dentes. Conclusão: Os resultados do presente estudo revelaram a cárie como a razão dominante dada por dentistas para extração de dentes em todas as faixas etárias dos sujeitos estudados...

Risk indicators for tooth loss in adult workers

Tooth loss continues to be a prevalent condition in Brazilian adults and elderly individuals. The aim of this cross-sectional study, conducted among workers in a wholesale grocery chain in the State of São Paulo, was to identify risk indicators for tooth loss in adults. The presence of caries and periodontal status were examined in 387 adults aged 20-64 years, according to World Health Organization criteria. Two outcomes were analyzed: loss of one or more teeth, and loss of four or more teeth. Independent variables analyzed were demographic and socioeconomic factors, clinical conditions, use of dental services, and self-perceived oral health. Poisson regression models were used for multivariate statistical analysis. Participants were missing a mean of 5.38 teeth, and 76.9% (n = 297) had lost at least one tooth; the most frequently lost teeth were permanent molars. Older age and the presence of visible dental biofilm were associated significantly with the two tooth loss outcomes (p < 0.05). Individuals who had visited the dentist 3 or more years previously showed a lower prevalence of tooth loss (prevalence ratio = 0.79; 95% confidence interval, 0.68-0.91). Those with lower household incomes were significantly more likely to have lost four or more teeth (prevalence ratio = 1.35; 95% confidence interval, 1.07-1.70). Study results indicated that age and dental biofilm were risk indicators for tooth loss, independently of socioeconomic factors. These risk indicators should be considered when planning oral health programs for adults.

Condición periodontal y pérdida dental en pacientes diabéticos del Hospital Universitario San Vicente de Paúl / Periodontal condition and tooth loss in diabetic patients

Introducción. La diabetes es una enfermedad sistémica que afecta el metabolismo de la glucosa y se ha relacionado con el desarrollo de enfermedad periodontal. Objetivo. El objetivo de este estudio fue determinar la condición periodontal y la pérdida dental de un grupo de pacientes diabéticos del Hospital Universitario San Vicente de Paúl. Materiales y métodos. A 117 sujetos con diabetes de tipo 1 y 2 se les practicó un examen periodontal completo, determinación de valores de la hemoglobina A1C (glycosilated hemoglobin) y radiografías periapicales, y se les indagó sobre hábitos de higiene oral e historia de diabetes. Los datos se analizaron de forma descriptiva y comparativa entre los parámetros clínicos, pérdida dental y tipo de diabetes. Resultados. La prevalencia de gingivitis fue de 27,4 % y la de periodontitis de 72,6 %. La complicación sistémica más frecuente fue la hipertensión arterial (51,3 %). Los dientes más frecuentemente perdidos fueron los molares y, en promedio, los sujetos habían perdido siete dientes. El control de placa bacteriana fue pobre (55,4 %). No hubo diferencias en los parámetros clínicos entre pacientes diabéticos de tipo 1 y de tipo 2. El promedio de profundidad con sonda fue 2,62 mm, siendo los molares los dientes más afectados. El promedio de pérdida de inserción fue de 3,03 mm. Los dientes 17, 16, 27, 37 y 47 presentaron los valores más altos de pérdida de inserción. Conclusiones. En conclusión, la condición periodontal en pacientes diabéticos fue mala, y presentaban periodontitis en la mayoría de los casos. Esto puede ser una causa importante de pérdida dental en sujetos diabéticos y requiere de especial atención por parte de los odontólogos y médicos.

Introduction. Diabetes is a systemic disease which affects the metabolism of glucose,and it has been associated with the development of periodontal disease. Objective. The periodontal condition and tooth loss was evaluated in diabetic subjects. Materials and methods. At the San Vicente de Paúl Hospital (Medellín, Colombia), 117 subjects with type 1 and 2 diabetes mellitus were examined. Patients underwent a comprehensive periodontal evaluation, glycosylated hemoglobin analysis, oral hygiene habits and history of diabetes. A descriptive and comparative analysis between the clinical parameters, tooth loss and type of diabetes was performed. Results. The prevalence of gingivitis was 27.4% and periodontitis 72.6%. The most frequent systemic complication was hypertension (51.3%). The most frequently lost teeth were molars and in general, the subjects had lost an average of 7 teeth and had a poor plaque control (55.4%). No differences were seen in clinical parameters between type 1 and 2 diabetes patients. The mean probing depth was 2.6 mm. The first and second upper and lower molars showed the highest values of PD. The mean clinical attachment loss was 3.3 mm . Maxillary teeth 17, 16, and mandibular 37, 47 showed the highest values of clinical attachment loss. Conclusions. In conclusion, the periodontal condition in diabetic patients was poor, presenting periodontitis in most cases. This can be a major cause of tooth loss in diabetic subjects and requires special attention by clinicians.

Peri-implantitis: revisión de la literatura / Peri-implantitis: literature review

La implantología oral inicia en la década de los 50s como resultado de experimentos científicos en tejido óseo. Actualmente los implantes dentales son una excelente opción de sustitución a dientes perdidos. Sin embargo, se encuentran expuestos a factores de riesgo que afectan su permanencia como: microbiológicos, ambientales (cigarrillo), genéticos, mecánicos, sistémicos (diabetes y osteoporosis) y farmacológicos. En razón a ello se han clasificado dos patologías peri-implantares: mucositis peri-implantar y peri-implantitis. Según el Sexto Consenso Europeo de Periodoncia se encuentran entre el 80%, y 28 a 56% respectivamente. El clínico debe conocer las causas de la lesión para orientar al paciente, establecer terapias de tratamiento y mantenimiento adecuadas y evitar el fracaso del tratamiento protésico. Las alteraciones que afectan la estabilidad de la oseointegración están determinadas en la planificación, inserción y fase de carga, teniendo en cuenta la presencia de biopelícula. En la actualidad se cuestiona el hecho de que los bifosfonatos interfieran en el éxito del implante y en la subsecuente osteonecrosis de los maxilares, por lo tanto no debe descartarse su análisis

Oral implantology began in the late 50s as a result of scientific experiments in bone tissue. Today dental implants are an excellent replacement option for lost teeth. However, they are exposed to risk factors affecting its continued operation as: microbiological, environmental (smoking), genetic, mechanical, systemic (diabetes and osteoporosis) and pharmacologic. Because it has identified two pathologies peri-implantares: peri-implant mucositis and peri-implantitis. According to the Sixth European Consensus of Periodontology found between 80% and 28-56% respectively. The clinician must know the causes of injury to guide patient treatment choices and establish appropriate maintenance and prevent failure of prosthetic treatment. Alterations that affect the stability of osseointegration are determined in the planning, integration and load step, taking into account the presence of biofilm. At present the fact that bisphosphonates interfere with with the success of the implant and the subsequent osteonecrosis of the jaw, so his analysis should not be dismisses

Tooth in the line of fracture: Its prognosis and its effects on healing.

Aims and Objective: The aim of this prospective study was to compare the postoperative results of mandibular angle fracture cases treated by open reduction and internal fixation wherein the third molar in the line of fracture was preserved in one group while it was extracted in the second group. Materials and Methods: Group I consisted of 30 patients in which the mandibular third molar in the line of fracture was preserved and group II consisted of 24 patients in which it was extracted following specific criteria. Various parameters like postoperative healing, infection, occlusion, tooth vitality, and mobility were graded numerically. Statistical analysis using a t-test was done. Data were expressed as mean±SD and a probability (P) value of <0.05 was considered significant. Results: The presence of infection with pain and tenderness was higher in group I. Osteogenesis was higher in group I till the end of the third week but the difference was not significant later. Discrepancy in occlusion was more in group II. Mobility of tooth decreased and status of periodontal tissue improved significantly with time. In the tooth involved, the return of vitality and decrease in pain/tenderness was significant after 1 week and continued till 24 weeks to normalcy. Two teeth showed mild root resorbtion and none showed ankylosis. Conclusion: Postoperative occlusal discrepancy is less but infection is higher when the tooth in the line of fracture is preserved as compared to when it is removed. More than half of the teeth in the fracture line show complete recovery within a period of 6 months to 1 year. Despite the risk of an increase in the rate of complications, the tooth in the line of fracture should be preserved for its merits.

Microbiology of peri-implant infections

The oral cavity has numerous microbes, providing us with a balanced microbial environment, however conditions like periodontitis sometimes prevail leading to bone loss and eventually causing tooth loss if not treated appropriately. By the same token,even with implants, gram positive facultative flora, establishes shortly after implant placement and stable implants showed no significant shifts in the composition, where as failing implants showed presence of Gram-negative anaerobic bacteria, particularly fusobacteria, spirochetes, and black-pigmenting organisms such as Prevotella intermedia. Which leads to destruction of the peri-implant apparatus and eventual loss of the implant if not attended to in a timely fashion. It is important to understand the microbiological aspects of peri-implant disease in order to proffer appropriate treatment

Fatores associados à presença de dentes em adultos de São Paulo, Brasil / Factors associated with maintenance of teeth in adults in the State of São Paulo, Brazil

O objetivo deste trabalho foi verificar a associação entre ter vinte ou mais dentes e variáveis sócio-demográficas, econômicas, de uso de serviços odontológicos e de autopercepção de saúde bucal. Este trabalho foi um estudo transversal em adultos de 35 a 44 anos, em cidades representativas do Estado de São Paulo, Brasil. Além do exame, os pesquisados responderam a uma entrevista. Foram examinados 1.612 adultos. A análise dos dados se restringiu aos indivíduos dentados, divididos em dois grupos (1-19 dentes e 20 ou mais dentes). Foi usado o teste qui-quadrado e regressão logística (p < 0,05). A maioria (72,1 por cento) apresentou mais de vinte dentes. Verificou-se que a menor escolaridade apresentou forte associação com a maior falta de elementos dentários; além disso, o fato de ser mulher, ter mais idade, morar na região rural, ter cinco pessoas ou mais residindo na mesma casa, ter renda familiar baixa, buscar atendimento em rede pública e ir ao dentista motivado por dor foram diretamente relacionados com mais dentes ausentes.

This cross-sectional study investigated the association between the presence of 20 or more teeth and sociodemographic and economic variables, use of dental care, and self-perceived oral health in adults. The sample consisted of 1,612 individuals aged 35 to 44 years, representative of the State of São Paulo, Brazil. In addition to the dental examination, subjects answered a questionnaire. Analysis in this study was limited to dentate individuals, divided into two groups (1 to 19 versus 20 or more teeth). The chi-square test and logistic regression were used (p < 0.05). Most individuals (72.1 percent) had more than 20 teeth. Less schooling was heavily associated with tooth loss, as were female gender, older age, rural residence, 5 or more people in the same household, low income, seeking treatment in the public health system, and seeking care due to toothache.