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1.
J Clin Exp Dent ; 12(3): e209-e214, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32190189

RESUMEN

Background: This research aimed to evaluate the salivary concentrations of fluoride (F-), calcium (Ca2+), and phosphate (Pi) after brackets bonding, and to identify the role of [F-], [Ca2+], and [Pi] on the development of active caries lesion (ACL) in individuals under fixed orthodontic treatment. Material and Methods: A longitudinal investigation with twenty-two individuals from 11 to 22 years of age was performed in four phases (baseline and after 1, 3, and 6 months). Analyses were carried out considering the salivary concentration of [F-], [Ca2+], and [Pi], as well as the caries index. Data were analyzed using the Friedman test, followed by the Wilcoxon test and the multivariate Cox model (p≤0.05). Results: 1 and 3 months after appliance bonding, the [Ca2+] was statistically lower than after 6 months (p<0.0083). On the other hand, salivary [F-] and [Pi] did not show any significant difference during the follow-up. The Cox model demonstrated that the increase of 1 µg/mL in Ca2+ decreased the risk of ACL development by 27%. In conclusion, the levels of Ca2+ changed during orthodontic treatment. Conclusions: A high Ca2+ level in the saliva is a protective factor for ACL development over time. Key words:Adolescents, bioinorganic chemistry, dental caries, orthodontic appliances.

2.
Clin Cosmet Investig Dent ; 12: 71-78, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32210634

RESUMEN

Objective: This longitudinal study aimed to investigate if the plaque fluoride (PF) concentration can predict the early childhood caries onset. Design: As part of a larger study, 188 preschoolers were clinically evaluated for early childhood caries diagnosis, at baseline and after 1-year follow-up. After that, the final sample comprised: 1. children who had already caries at baseline (decayed, missing or filled surfaces, as well as white chalky white spot lesions adjacent to gingival margins) and developed at least one more cavitation after one year (n=16), and 2. children who never had or developed any caries lesions, including active white spots lesions (n=15). Before the clinical examinations, dental plaque was collected. PF concentration was determined with an ion-specific electrode. A chart was used to estimate the mean daily sugar exposure. The results were statistically analyzed by Spearman correlation and logistic regression analyses (α=0.05). Results: After one year, a positive significant correlation between caries development and liquid sucrose, total sugar and total sucrose consumption increments was found (p<0.05). Moreover, the solid sugar, solid sucrose and total sugar exposure at baseline were positively correlated with the presence of dental plaque at follow-up (p<0.05). To top it all, children with PF concentrations ≤0.1 µg/mg at baseline were 10 times more likely to develop caries. Conclusion: In conclusion, this study demonstrated for the first time in vivo that low PF concentration is a predictor of caries development in primary teeth.

3.
Child Obes ; 14(8): 501-509, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30183336

RESUMEN

BACKGROUND: The aim of the present study was to undertake a systematic review exploring the relationship between childhood obesity and fecal microorganisms, to answer the following question: "Are Firmicutes and Bacteroidetes a significant risk indicator/factor for obesity in children?" The main search terms were "child" and "obesity" together with "gut microbiota" (PubMed: 2005-2017). The minimal requirements for inclusion were the evaluation of gut microbiota composition and BMI in children between 0 and 13 years of age. METHODS: Assessed articles were carefully classified according to a predetermined criterion, and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were considered. Seven articles were critically appraised and used as a basis for conclusions. RESULTS: Three studies showed a positive association between Bacteroides fragilis and obesity. In addition, a high value of evidence indicated that a decrease in the Bacteroidetes phylum and in Bacteroides/Prevotella groups was related to high BMI. For the Firmicutes phylum, one high-quality study highlighted that it was positively correlated with weight gain. With regard to Firmicutes species, Clostridium leptum, Eubacterium hallii, and Lactobacillus spp. indicated adipose tissue storage, while Clostridium difficile and the Staphylococcus genus were correlated with low BMI. Despite the fact that only one study did not perform real-time polymerase chain reaction to quantify the microorganisms, its results corroborated those of the studies that did. CONCLUSIONS: Changes in Firmicutes and Bacteroidetes phyla/species levels might in fact be significant indicators/factors for childhood obesity. However, given the small number of articles appraising these entire phyla and the heterogeneity among the species assessed, further well-designed studies are required to improve the knowledge.


Asunto(s)
Bacteroidetes , Firmicutes , Microbioma Gastrointestinal , Obesidad Pediátrica/epidemiología , Obesidad Pediátrica/microbiología , Niño , Preescolar , Humanos , Lactante
4.
J Clin Pediatr Dent ; 42(3): 188-194, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29698142

RESUMEN

BACKGROUND: Many factors contribute to caries development in humans, such as diet, host factors - including different saliva components - and the presence of acidogenic bacteria in the dental biofilm, particularly Streptococcus mutans (S. mutans). Despite the influence of S. mutans in caries, this bacterium is also prevalent among healthy individuals, suggesting the contribution of genetic variation on the cariogenic potential. Based on this hypothesis, the present work investigated the influence of S. mutans virulence factors and saliva agglutinating capacity on caries susceptibility in children. STUDY DESIGN: Saliva samples of 24 children from low income families (13 caries-free and 11 caries-active individuals) were collected and tested for their ability to agglutinate S. mutans. The bacteria were isolated from these samples and analyzed for the presence of the gene coding for mutacin IV (mut IV). Biofilm formation and acid tolerance were also investigated in both groups (caries-free and caries-active). RESULTS: Saliva samples from caries-free children showed an increased capacity to agglutinate S. mutans (p=0.006). Also, bacteria isolated from the caries-free group formed less biofilm when compared to the caries-active group (p=0.04). The presence of mut IV gene did not differ between bacteria isolated from caries-free and caries-active individuals, nor did the ability to tolerate an acidic environment, which was the same for the two groups. CONCLUSIONS: Altogether, the results suggest that the adhesive properties of S. mutans and the agglutinating capacity of the saliva samples correlated with the presence of caries lesions in children.


Asunto(s)
Susceptibilidad a Caries Dentarias , Saliva/fisiología , Streptococcus mutans/patogenicidad , Factores de Virulencia/fisiología , Aglutinación , Niño , Humanos
5.
Braz. j. oral sci ; 16: e17006, jan.-dez. 2017. ilus
Artículo en Inglés | LILACS, BBO - Odontología | ID: biblio-883748

RESUMEN

Aim: The objective was to evaluate oral health-related quality of life (OHRQOL) in patients aging 18 - 60 years, considering oral health, dental aesthetic impact and self-esteem. Methods: The sample comprised 81 patients, regardless gender/ethnicity, seeking for dental aesthetic treatment at University São Francisco, Bragança Paulista-SP. The instruments used to assess the OHRQOL were the questionnaires: 1. Rosenberg Self-Esteem Scale (RSS); 2. Oral Health Impact Profile-14 Brazil (OHIP) and 3. Psychosocial Impact and Aesthetic Dental Questionnaire-Brazil (PIADQ). Data were analyzed by Spearman correlation (α=5%) and descriptive statistics. Results: The older the patient the worse the oral and general health conditions found (p<0.05). Moreover, the age showed significant correlation with OIHP and PIADQ questionnaires scores (p=0.000). The three questionnaires showed moderate positive correlations (p<0.05 r=0.461­0.685) among them. In addition, OHIP and QIPED questionnaires correlated with general health and oral health (p<0.05 r=0.230­0.558). Conclusion: It could be concluded that aesthetic dental needs interfere, in fact, in the oral health-related quality of life and in the self-steem of patients seeking for treatment University São Francisco Dental School (AU)


Asunto(s)
Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Estética Dental , Salud Bucal , Calidad de Vida , Autoimagen , Encuestas y Cuestionarios
6.
ROBRAC ; 26(77): 26-32, abr./jun. 2017. graf, ilus
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-875361

RESUMEN

Objetivo: Avaliar o efeito do selamento de lesões de cárie com resina flow no controle de lesões cariosas oclusais comparado ao tratamento restaurador com resina composta. Material e Método: foram selecionadas 22 crianças na faixa etária de 4 a 9 anos que frequentam a Clínica Infantil da Universidade de Fortaleza (UNIFOR). Foi realizado um exame clínico inicial a fim de selecionar molares decíduos apresentando lesão de cárie na superfície oclusal, com envolvimento de dentina e abertura em esmalte menor ou igual a 3 mm. O exame radiográfico foi utilizado para verificar a profundidade da lesão de cárie, onde foram selecionadas as lesões que se apresentavam em metade externa de dentina. As crianças foram divididas aleatoriamente em 2 grupos, onde o primeiro foi realizado o selamento de cárie com resina flow (GRF) e o segundo grupo (GRC) restauração convencional com resina composta (remoção total do tecido cariado). Após 6 meses, 03 pacientes foram perdidos da pesquisa e, os grupos foram avaliados radiograficamente, afim de se verificar o comportamento das lesões: progressão (escore 2), paralisação (escore 1), ou regressão (escore 0) para o grupo GRF e para o Grupo GRC progressão (escore 2) e paralisação (escore 1). Uma avaliação clínica foi conduzida para verificação da integridade dos selamentos e das restaurações: retenção completa, parcial, perda total. Os dados foram comparados por meio do teste Mann-Whitney, com nível de significância de 5%. Resultados: não houve diferença estatística entre os grupos, onde 90% dos dentes do grupo GRF apresentaram retenção completa do material e em 100% dos casos houve ausência de progressão da lesão. Cem por cento dos molares pertencentes ao grupo GRC apresentaram, retenção completa do material, em 100% dos casos houve ausência da progressão da lesão. Conclusão: o selamento de lesão de cárie com resina flow constitui-se uma alternativa conservadora ao tratamento restaurador, propiciando a paralisação de lesões de cárie em metade externa de dentina.


The objective of this study was to evaluate the effect of sealing cavities with flow resin for controlling occlusal carious lesions compared with restorative treatment using composite resin. Twenty two children between 4 to 9 years attending the Children's Clinic of the University of Fortaleza (UNIFOR) were selected. After the initial clinical examination primary molars showing caries lesions on the occlusal surface (involving dentin and enamel in the opening less than or equal to 3 mm) were selected. Radiographic examination was used to check the depth of carious lesions and the selected lesions were those that affected the outer half of dentin. Children were randomly divided into 2 groups: group GRF ­ the sealing of cavities with flowable composite was conducted, and group GRC - conventional restoration with composite resin (total removal of decayed tissue) was performed. After six months of follow-up, 03 patients were excluded from the study, the groups were evaluated radiographically (to check the behavior of the lesions: progression, paralization or regression for the group GRF and for the group GRC progression or paralization) and clinically (to verify the integrity of sealing and restorations: complete retention, partial retention and loss total). Data were compared using the Mann-Whitney test at 5% significance level. The results showed that 90% of the teeth from group GRF showed complete retention of the material and 100% did not show progression of the lesion. One hundred percent of the molars belonging to group GRC showed complete retention of the material and 100% did not show progression of the lesion. In conclusion, the sealing of carious lesions with flowable composite constitutes a conservative alternative to restorative treatment, providing the paralization of carious lesions in the outer half of dentin.

7.
Caries Res ; 51(4): 394-401, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28633135

RESUMEN

OBJECTIVE: This study aimed to analyze the concentration and activity of carbonic anhydrase (CA) VI in the saliva of school children. We investigated the relationship among caries, CA VI concentration/activity, flow rate, pH, and buffering capacity. MATERIALS AND METHODS: Seventy-four school children were divided into a caries-free group and a caries group. Clinical examinations were conducted by one examiner according to World Health Organization criteria + early caries lesions. Salivary flow rate, pH, and buffering capacity were analyzed. Salivary CA VI concentration and activity were evaluated by ELISA and zymography, respectively. The data were analyzed using Student's t test and the Mann-Whitney test, and Pearson and Spearman correlation analyses were also done. In multivariate modeling, associations between variables were expressed as odds ratios. RESULTS: The results showed that salivary flow rate, salivary pH, and BC were significantly higher in the saliva of caries-free children. Also, the salivary CA VI concentration was significantly higher in the saliva of caries-free children. The salivary CA VI activity was higher in children with caries. We found a negative correlation between BC and dental caries. Also, in the caries group we found a positive correlation between the concentration and the activity of CA VI and a negative correlation between BC and CA VI activity. A negative correlation between salivary pH and CA VI concentration was observed in the caries-free group. A high activity of CA and a low salivary flow rate were associated with dental caries. CONCLUSION: These results support the conclusion that dental caries is highly affected by the activity of CA VI in saliva as well as by the salivary flow rate.


Asunto(s)
Anhidrasas Carbónicas/análisis , Anhidrasas Carbónicas/fisiología , Caries Dental/epidemiología , Saliva/química , Saliva/enzimología , Tampones (Química) , Niño , Estudios Transversales , Humanos , Concentración de Iones de Hidrógeno , Salivación
8.
Arch Oral Biol ; 67: 22-7, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27019137

RESUMEN

OBJECTIVE: Explore the associations between the severity of dental caries in childhood, mutans streptococci (MS) levels and IgA antibody response against Streptococcus mutans GbpB. Moreover, other caries-related etiological factors were also investigated. DESIGN: 36-60 month-old children were grouped into Caries-Free (CF, n=19), Early Childhood Caries (ECC, n=17) and Severe Early Childhood Caries (S-ECC, n=21). Data from socio-economic-cultural status, oral hygiene habits and dietary patterns were obtained from a questionnaire and a food-frequency diary filled out by parents. Saliva was collected from children for microbiological analysis and detection of salivary IgA antibody reactive with S. mutans GbpB in western blot. RESULTS: S-ECC children had reduced family income compared to those with ECC and CF. There was difference between CF and caries groups (ECC and S-ECC) in MS counts. Positive correlations between salivary IgA antibody response against GbpB and MS counts were found when the entire population was evaluated. When children with high MS counts were compared, S-ECC group showed significantly lower IgA antibody levels to GbpB compared to CF group. This finding was not observed for the ECC group. CONCLUSIONS: This study suggests that children with S-ECC have reduced salivary IgA immune responses to S. mutans GbpB, potentially compromising their ability to modify MS infection and its cariogenic potential. Furthermore, a reduced family income and high levels of MS were also associated with S-ECC.


Asunto(s)
Caries Dental/inmunología , Caries Dental/microbiología , Inmunoglobulina A Secretora/inmunología , Saliva/inmunología , Streptococcus mutans/inmunología , Formación de Anticuerpos , Antígenos Bacterianos/inmunología , Carga Bacteriana , Western Blotting , Proteínas Portadoras/inmunología , Preescolar , Femenino , Humanos , Inmunidad Mucosa , Inmunoglobulina A Secretora/biosíntesis , Lectinas/inmunología , Masculino , Encuestas y Cuestionarios
9.
RGO (Porto Alegre) ; 63(4): 455-460, Oct.-Dec. 2015. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: lil-770576

RESUMEN

Objective: The aim of this study was to evaluate the emotional reactions before and after the application of a child audiovisual book that illustrates the trigger fear and anxiety points in the dental appointment. Moreover, the educational effect of this book as preconditioning to dental care was also verified. Methods: The study is a prospective pilot study conducted at the University of Western Santa Catarina with a convenience sample of 20 children aged 4-6 years old, with and without previous dental experience. All these children received the book and they were assessed before and after the presentation by responsible attendants. The projective test FIS (Facial Image Scale) was applied in 2 stages on the same day of assistance. Both tests were applied at the reception waiting room: before the child came into contact with the book in the dental clinic room and after the child came into contact with the playful instrument. Anamnesis and clinical examination were performed in the dental office by the dentist to start or continue the treatment. Results: The children were able to answer the projective test with self -analysis. The idealized audiovisual book was successfully constructed and used in the research. The comparison between FIS 1 and FIS 2 made with paired t-test showed significant improvements by comparing the results before the presentation of the playful instrument and after the use of it (p <0.0001), with no differences in childhood anxiety between genders and ages. Conclusion: The result of the conditioning technique using the book before the dental treatment was highly significant in reducing anxiety.


Objetivos: Avaliar as reações emocionais antes e após a aplicação de um livro audiovisual infantil que ilustra os pontos desencadeadores de medo e ansiedade na consulta odontológica. Além disso, verificou-se o efeito educativo desse livro como condicionamento prévio ao atendimento dental. Métodos: A pesquisa é um estudo piloto prospectivo conduzido na Universidade Comunitária da Região de Chapecó, com amostra de conveniência de 20 crianças entre 4 a 6 anos de idade, com e sem experiência odontológica anterior. Todas essas crianças receberam o livro e foram avaliadas antes e após a apresentação desse pelos seus responsáveis. Aplicou-se o teste projetivo de FIS (Facial Image Scale), em 2 etapas no mesmo dia do atendimento. Os dois testes foram aplicados na recepção: antes da criança entrar em contato com o livro na sala anexa à clínica odontológica e após a criança entrar em contato com o instrumento lúdico. Foi realizada a anamnese e exame clínico no consultório odontológico pela odontopediatra para iniciar ou dar continuidade ao tratamento. Resultados: As crianças foram capazes de responder o teste projetivo com auto-análise. O livro audiovisual idealizado foi construído com sucesso e utilizado na pesquisa. A comparação entre FIS 1 e FIS 2 feito com teste-t pareado apresentou melhoras significativas comparando-se o resultado antes da apresentação do instrumento lúdico e após o uso do instrumento (p<0,0001), sendo que não houve diferença na ansiedade infantil entre os gêneros e as idades. Conclusão: O resultado da técnica de condicionamento utilizando o livro, antes do atendimento odontológico, foi altamente significativo na redução da ansiedade.

10.
RGO (Porto Alegre) ; 63(3): 301-308, July-Sept. 2015. graf
Artículo en Inglés | LILACS-Express | LILACS | ID: lil-765055

RESUMEN

Objective: The aim of this study was to evaluate the retention of glass ionomer sealant, Vitro Molar(r) (DFL) and Ketac Molar Easy Mix(r) (3 m ESPE) as pit and fissure sealants on first permanent molars, fully or partially erupted.Methods: The study sample consisted of 412 molars, among 110 children. The sealant retention was evaluated after 6 months of the application.Results: The results were collected through digital photographs and the retention results were assessed by the following System: score 0 - total retention; score 1 - sealant present in more than 50% of the pit and fissure system; score 2 - sealant present in less than 50% of the pit and fissure system; score 3 - missing sealant. Regarding the presence of the sealants in less than 50% of the occlusal surface, lower percentages were found for the two materials used as follows: score score 2 - Vitro Molar(r) (9,52% examiner 1 and 11.9% examiner 2) and score 2 - Ketac Molar Easy Mix(r)(9.52% examiner 1 and 10.71% examiner 2). Approximately 90% of the teeth sealed with Ketac Molar Easy Mix(r)or Vitro Molar(r) presented total loss (score 3). Thus, there was no statistical difference between the materials and between the examiners (p>0.05).Conclusion: Therefore it was concluded that the sealant retention in the studied population was not satisfactory for any of the materials used.


Objetivo: Avaliar a retenção do cimento de ionômero de vidro, Vitro Molar(r) (DFL) e Ketac Molar Easy Mix(r) (3M ESPE) como selantes para fóssulas e fissuras em primeiros molares permanentes hígidos, parcialmente ou totalmente irrompidos.Métodos: A amostra para este estudo foi de 412 molares selados condizentes com um total de 110 crianças. A avaliação da retenção dos selantes foi realizada após 6 meses da aplicação.Resultados: Os resultados foram coletados por meio de fotografias digitais através do Sistema de Avaliação de Selantes: escore 0 = selante presente em toda o sistema de fissuras; escore 1 = selante presente em mais de 50% do sistema de fissuras; escore 2 = selante presente em menos de 50% do sistema de fissuras; escore 3 = selante ausente. Com relação a presença dos selantes em menos de 50% das fissuras, as porcentagens foram baixas para os dois materiais: score 2 - Vitro Molar(r) (9,52% avaliador 1 e 11,9% avaliador 2) e score 2 - Ketac Molar Easy Mix(r)(9,52% avaliador 1 e 10,71% avaliador 2). Cerca de 90% dos dentes selados com Ketac Molar Easy Mix(r)ou Vitro Molar(r) apresentaram perda total (score 3).Portanto, não houve diferença estatística tanto entre os materiais como entre os examinadores (p>0.05).Conclusão: Sendo assim, concluiu-se que a retenção dos selantes na população estudada foi insatisfatória para os 2 materiais.

11.
Lasers Med Sci ; 28(1): 111-8, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22441828

RESUMEN

Altering the structure of the enamel surface around the orthodontic bracket by reducing its content of carbonate and phosphate resulting from application of CO(2) laser may represent a more effective strategy in preventing caries in this region. This study aimed at determining whether irradiation with a CO(2) laser combined with fluoride-releasing bonding material could reduce enamel demineralization around orthodontic brackets subjected to cariogenic challenge. Ninety bovine enamel slabs were divided into five groups (n = 18): non-inoculated brain-heart infusion broth group, non-fluoride-releasing composite resin (NFRCR--control group), resin-modified glass ionomer cement (RMGIC), CO(2) laser + Transbond (L+NFRCR) and CO(2) laser + Fuji (L+RMGIC). Slabs were submitted to a 5-day microbiological caries model. The Streptococcus mutans biofilm formed on the slabs was biochemically and microbiologically analysed, and the enamel Knoop hardness number (KHN) around the brackets was determined. The data were analysed by ANOVA and Tukey tests (α = 0.05). Biochemical and microbiological analyses of the biofilm revealed no statistically significant differences among the groups. Lased groups presented the highest KHN means, which statistically differed from NFRCR; however, no difference was found between these lased groups. RMGIC did not differ from NFRCR which presented the lowest KHN mean. The CO(2) laser (λ = 10.6 µm; 10.0 J/cm(2) per pulse) use with or without F-bonding materials was effective in inhibiting demineralization around orthodontic brackets. However, no additional effect was found when the enamel was treated with the combination of CO(2) laser and an F-releasing material.


Asunto(s)
Bisfenol A Glicidil Metacrilato/farmacología , Recubrimiento Dental Adhesivo/métodos , Esmalte Dental/química , Esmalte Dental/efectos de la radiación , Cementos de Ionómero Vitreo/farmacología , Láseres de Gas , Soportes Ortodóncicos , Cementos de Resina/farmacología , Desmineralización Dental/prevención & control , Análisis de Varianza , Animales , Biopelículas , Bovinos , Distribución Aleatoria , Esterilización , Desmineralización Dental/microbiología
12.
J Dent Child (Chic) ; 79(3): 130-5, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23433615

RESUMEN

PURPOSE: The purpose of this 1-year follow-up study was to evaluate the behavior/progression of early carious lesions (active noncavitated carious lesions) by surface and type of tooth in early childhood. METHODS: A total of 179 3-and 4-year-old preschoolers took part in this study. Clinical examinations were conducted by a calibrated examiner using a mirror, ball-ended probe, gauze for cleaning and drying of teeth, and artificial light. The World Health Organization criteria, with an added measurement of early carious lesions (ECLs), were employed for the caries examinations. Descriptive statistics and logistic regression were used in the statistical analysis. RESULTS: After a 1-year follow-up, the study population developed 1.60 ± 1.64 new carious lesions. Children with caries activity at baseline showed much higher risks of developing new lesions than caries-free children (odds ratio=17.3 for ECL development, OR=24.5 for cavitations/fillings). Most ECLs remained active/unchanged after 1 year, whereas approximately 36% were arrested. Approximately 10% of the ECLs became cavitated, were filled, or were missing due to caries at follow-up. ECLs turned into cavities or fillings more frequently in the posterior region. CONCLUSION: This study's findings support the conservative management of ECLs since, after 1 year, the majority of lesions were active/unchanged or were arrested on the smooth surfaces of primary teeth.


Asunto(s)
Caries Dental/fisiopatología , Diente Primario/fisiopatología , Preescolar , Índice CPO , Caries Dental/clasificación , Pruebas de Actividad de Caries Dental , Susceptibilidad a Caries Dentarias/fisiología , Esmalte Dental/patología , Fisuras Dentales/fisiopatología , Restauración Dental Permanente , Progresión de la Enfermedad , Estudios de Seguimiento , Humanos , Estudios Longitudinales , Examen Físico , Factores de Riesgo , Pérdida de Diente/etiología , Remineralización Dental
13.
Rev. odonto ciênc ; 25(4): 339-343, oct.-dec. 2010. tab, graf
Artículo en Inglés | LILACS, BBO - Odontología | ID: biblio-874245

RESUMEN

Purpose: To compare the caries prevalence, saliva buffering capacity (SBC), oral hygiene (OH), dietary habits, family income (FI) and frequency of visits to a dental office (Do) between Brazilian children living in areas with and without fluoridated public water supply. Methods: Forty-six 5-7-year-old preschoolers were selected in Itatiba, SP, Brazil; 19 were from a fluoridated area, and 27 were from a non-fluoridated area. The caries index was determined according to the World Health Organization criteria, and the SBC was assessed by titration with hydrochloric acid. The FI, frequency of OH and visits to Do were estimated by questionnaire. The dietary habits were assessed with a diet chart. The differences between the groups were analyzed with Mann-Whitney-U tests (α=0.05). Results: Children from the non-fluoridated area showed significantly higher dmft/DMFT than those from the fluoridated area, but they showed significantly lower SBC, OH frequency and FI. No significant differences were observed between the areas for dietary habits and visits to Do. Conclusion: Children from fluoridated areas showed higher salivary buffering capacity, family income and oral hygiene frequency as well as lower caries prevalence, supporting the beneficial effect of fluoride in the tap water for caries prevention.


Objetivo: Comparar prevalência de cárie, capacidade tamponante da saliva (CTS), higiene bucal (HB), hábitos dietéticos, renda familiar (RF) e frequência de visita a consultórios odontológicos (Co) entre crianças brasileiras residentes em áreas de água de abastecimento público fluoretadas e não fluoretadas. Metodologia: Quarenta e seis crianças entre 5-7 anos foram selecionadas em Itatiba-SP-Brasil, sendo 19 pertencentes à área fluoretada e 27 à área não fluoretada. O índice de cárie foi determinado de acordo com o critério da Organização Mundial de Saúde e a CTS foi medida por titulação com ácido clorídrico. A RF, frequência de HB e visita ao Co foram estimadas por questionário. Os hábitos dietéticos foram avaliados com diário de dieta. As diferenças entre as variáveis foram analisadas pelo teste de Mann Whitney (α=0,05). Resultados: As crianças da área não fluoretada apresentaram significativamente maior ceod/CPOD que àquelas da área fluoretada, porém significativamente menor CTS, HB e RF. Com relação a hábitos dietéticos e visitas ao Co, não foi observada diferença significativa entre as áreas. Conclusão: As crianças da área fluoretada apresentaram maior capacidade tamponante da saliva, renda familiar e frequência de higiene bucal, assim como menor prevalência de cárie, reforçando o efeito benéfico do flúor nas águas de abastecimento para prevenir a cárie.


Asunto(s)
Humanos , Masculino , Femenino , Preescolar , Niño , Caries Dental/epidemiología , Fluoruración , Conducta Alimentaria , Renta , Higiene Bucal , Saliva , Encuestas y Cuestionarios
14.
Oral Health Prev Dent ; 8(1): 59-70, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20480056

RESUMEN

PURPOSE: The aim of the present study was to undertake a systematic review to investigate whether mutans streptococci levels are a strong risk indicator/factor for ECC, based on the current quality of the literature regarding the relationship between early childhood caries (ECC) and these microorganisms. MATERIALS AND METHODS: The authors searched PubMed, Scopus and Cochrane Library databases for papers from 1951 to 2007. The minimal inclusion requirements were assessment of preschool children reporting mutans streptococci counts, mainly in saliva and biofilm samples, and caries assessment. Since the heterogeneity of the studies did not allow a meta-analysis (chi(2) test), a qualitative analysis was conducted. RESULTS: The electronic search yielded 120 articles, but only 16 scientific papers were critically appraised. Of the 16 scientific papers included in the review, only one cross-sectional study achieved a high value of evidence. CONCLUSIONS: It was concluded that mutans streptococci levels are a strong risk indicator for ECC. However, further well designed longitudinal studies with high evidence values are required to confirm mutans streptococci levels as a significant ECC risk factor.


Asunto(s)
Caries Dental/microbiología , Placa Dental/microbiología , Saliva/microbiología , Streptococcus mutans , Distribución de Chi-Cuadrado , Preescolar , Caries Dental/epidemiología , Humanos , Lactante , Factores de Riesgo , Streptococcus mutans/aislamiento & purificación
15.
J Contemp Dent Pract ; 11(3): 071-7, 2010 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-20461327

RESUMEN

AIM: The purpose of the case report was to describe the treatment of a 4(1/2)-year-old boy with amelogenesis imperfect (AI) in the primary dentition. BACKGROUND: AI is a hereditary condition that affects the development of enamel, causing quantity, structural, and compositional anomalies involving all dentitions. Consequently, the effects can extend to both the primary and secondary dentitions. CASE REPORT: A 4(1/2)-year-old boy was brought to the dental clinic complaining of tooth hypersensitivity during meals. The medical history and clinical examination were used to arrive at the diagnosis of amelogenesis imperfecta. The treatment was oral rehabilitation of the primary molars with stainless steel crowns and resin-filled celluloid forms of both maxillary and mandibular primary incisors and canines. Improvements in the patient's psychological behavior and the elimination of tooth sensitiveness were observed, and the reestablishment of a normal occlusion resulted in improved eating habits. The child was monitored in the Pediatric Dentistry Clinic at four-month intervals until the mixed dentition stage. SUMMARY: The oral rehabilitation of young children with AI is necessary to reestablish the stomatognathic system function, so important for a child's systemic health. An adequate medical history and a careful clinical examination were essential for a correct diagnosis. Treatment was rendered that was appropriate for the child's age and clinical/psychological characteristics. CLINICAL SIGNIFICANCE: Cost-effective restorative techniques involving stainless steel and composite-resin crowns are shown for the restoration of a young patient with amelogensis imperfecta.


Asunto(s)
Amelogénesis Imperfecta/terapia , Rehabilitación Bucal/métodos , Diente Primario/patología , Grabado Ácido Dental , Amelogénesis Imperfecta/genética , Bisfenol A Glicidil Metacrilato/química , Preescolar , Resinas Compuestas/química , Coronas , Diente Canino/patología , Aleaciones Dentales/química , Materiales Dentales/química , Diseño de Prótesis Dental/instrumentación , Estudios de Seguimiento , Humanos , Incisivo/patología , Masculino , Diente Molar/patología , Linaje , Resinas Sintéticas/química , Acero Inoxidable/química
16.
Arch Oral Biol ; 55(5): 365-73, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20381791

RESUMEN

OBJECTIVE: This cross-sectional study aimed to investigate the relationship among microbiological composition of dental plaque, sugar exposure and social factors, as well as the presence of visible plaque in preschoolers with different stages of early childhood caries. DESIGN: A total of 169 children were clinically examined according to the World Health Organisation criteria + early caries lesions and were divided into three groups: caries-free (n=53), early caries lesions-ECL (n=56), and cavitated caries lesions-CCL (n=60). The presence of clinically visible dental plaque on maxillary incisors was recorded. After that, dental plaque from all buccal and lingual smooth surfaces was collected and the number of colony-forming units of mutans streptococci and total microorganism, as well as the presence of lactobacilli was determined. Daily frequency of meals containing sugar was assessed by a diet chart whereas social factors were evaluated by a questionnaire. The data were analysed by chi-square test followed by multiple logistic regressions (alpha=0.05, confidence interval=95%). RESULTS: High levels of mutans streptococci (OR=2.28), high total sugar exposure (OR=5.45) and presence of dental plaque (OR=2.60) showed significant association with ECL (p<0.05). High total microorganism count (OR=5.18), high solid sugar exposure (OR=2.50) and the presence of lactobacilli (OR=24.99) revealed significant association with CCL (p<0.05). CONCLUSIONS: These results support the conclusion that dietary sugar experience influenced the microbiological composition of dental plaque. Moreover, the early stage of caries is highly affected by mutans streptococci and visible dental plaque on maxillary incisors whereas cavities are strongly related to lactobacilli and total microorganism.


Asunto(s)
Caries Dental/microbiología , Caries Dental/patología , Placa Dental/microbiología , Sacarosa en la Dieta/efectos adversos , Distribución de Chi-Cuadrado , Preescolar , Recuento de Colonia Microbiana , Índice CPO , Caries Dental/metabolismo , Grupos Étnicos , Femenino , Humanos , Lactobacillus/aislamiento & purificación , Modelos Logísticos , Masculino , Análisis Multivariante , Clase Social , Streptococcus mutans/aislamiento & purificación , Encuestas y Cuestionarios , Diente Primario
17.
ROBRAC ; 18(45): 27-34, jun. 2009. ilus, tab
Artículo en Portugués | LILACS-Express | LILACS | ID: lil-528526

RESUMEN

O objetivo desse estudo foi investigar a perda mineral do esmalte não desgastado ao redor de selantesionoméricos aderidos por sistemas autocondicionantes. Trinta e dois incisivos bovinos foram distribuídosem 3 grupos segundo o tratamento da superfície de esmalte: Prompt (Pr), Xeno III (Xe), Vitremer Primer (VP)e um outro grupo (controle) utilizando resina composta (RC). Após o tratamento do esmalte, um cilindro deionômero de vidro Vitremer foi construído, com exceção do grupo RC, onde foi utilizado o compósito Z250.Os espécimes foram submetidos à desafio cariogênico e seccionados, ao final do mesmo, para realizaçãode testes de dureza. Edentações foram realizadas em 3 regiões para cada uma das faces incisal e cervical,até a profundidade de 300 μm. Apenas para o grupo RC foi observada perda mineral significante na regiãoexterna à margem esmalte-resina. Nessa mesma região, a comparação dos grupos (testes de Mann-Withney)demonstrou que os maiores valores de perda mineral foram obtidos para o grupo RC, enquanto nenhumadiferença foi observada para VP, Pr e Xe. Pôde ser concluido que a utilização de sistemas adesivosautocondicionantes simplificados não afetou de forma adversa o efeito cariostático do cimento de ionômerode vidro modificado por resina aplicado ao esmalte não desgastado.


The purpose of this study was to investigate the mineral loss of the unground enamel around resinmodifiedglass ionomer sealants bonded with one-step self-etching adhesive systems. Thirty-two bovine incisorswere randomly assigned into 4 groups according to the enamel surface treatment: Prompt (Pr), Xeno III(Xe), Vitremer (VP) or resin (RC). Followed the enamel treatment, a cylinder of Vitremer was built-up, exceptfor RC where a composite resin Z250 was used. The teeth were submitted to a cariogenic challenge and cutinto halves by the end of the cycle to enamel hardness determination. Indentations were performed in threeregions for each face, incisal and cervical, up to the depth of 300 μm. As results, only for RC it was detectedsignificant mineral loss in the external area of the enamel-resin margin. For that same area, the comparisonof the groups (Mann-Withtney tests) demonstrated the highest mineral lost for RC, while no difference wasobserved among VP, Pr and Xe. It could be concluded that the use of one-step self-etching adhesive systemsas intermediary layer to improve the retention of a resin-modified glass-ionomer sealant to the ungroundenamel did not adversely influence its cariostatic effect.

18.
J Contemp Dent Pract ; 10(2): 90-7, 2009 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-19279977

RESUMEN

AIM: The purpose of this case report was to describe the oral rehabilitation of a 4-year-old girl presenting early childhood caries (ECC). BACKGROUND: ECC is highly prevalent in developing countries and its severity increases with age. This disease implies serious consequences for the development of the stomatognathic system and for the child's quality of life. As young children are usually anxious about dental treatment, their level of co-operation is limited, leading to a challenging situation. CASE REPORT: A 4-year-old girl was brought by her mother for dental treatment with the complaint of pain. The clinical examination revealed extensive carious coronary destructions. After preventive and curative measures, the oral rehabilitation was performed; it included the use of stainless steel crowns, resin filled celluloid crowns with previous cementation of glass post pins when necessary, an amalgam restoration, orthodontic treatment, and a partial removable prosthesis. The child has been monitored in the Pediatric Dentistry Clinic at 4-monthly intervals. SUMMARY: The oral rehabilitation was able to reestablish the oral health in the primary arches mutilated by early childhood caries. This is important for the establishment of an adequate mixed and permanent dentition, for proper facial and maxillary growth, and to the child's psychological and social development. CLINICAL SIGNIFICANCE: The full management, including preventive, psychological, and curative measures of a young child with severe ECC was found successful after 8 months of follow up. This result can encourage the clinicians to seek a cost-effective technique such as stainless steel crowns, resin filled celluloid crowns, and partial removable prosthesis to reestablish the oral functions and improve the child's psycho-social development.


Asunto(s)
Caries Dental/terapia , Rehabilitación Bucal , Preescolar , Resinas Compuestas , Coronas , Aleaciones Dentales , Amalgama Dental , Materiales Dentales , Diseño de Prótesis Dental , Restauración Dental Permanente , Dentadura Parcial Removible , Femenino , Estudios de Seguimiento , Vidrio , Humanos , Maloclusión/terapia , Técnica de Perno Muñón , Acero Inoxidable , Técnicas de Movimiento Dental
19.
J Clin Pediatr Dent ; 32(3): 243-6, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18524277

RESUMEN

Disturbances of the dental development may result in anomalies, which may be apparent as soon as the child is born. Eruption cysts are rarely observed in neonates considering that at this stage of the child's life teeth eruption is uncommon. Thus, the aim of this report is to describe a case of eruption cysts in a neonate. A male neonate was brought to the emergency service with the chief complaint of an elevated area on the anterior region of the inferior alveolar ridge. The lesion was clinically characterized as a compressive and floating swelling. Through a radiographic exam two mandibular primary incisors could be seen superficially located. Due to the patient's age and the initial diagnosis of eruption cysts the conduct adopted was clinical surveillance. Forty-five days after the first visit the lesions had significantly decreased in size, and completely disappeared after 4 months. At that age, both mandibular central incisors were already in the oral cavity exhibiting small hypoplastic areas in the incisal edges. The clinical and radiographic follow-up of eruption cysts in neonates appears to be an adequate conduct without differing from that recommended for older children.


Asunto(s)
Quiste Dentígero/patología , Enfermedades Mandibulares/patología , Humanos , Recién Nacido , Masculino , Remisión Espontánea , Erupción Dental
20.
Braz. j. oral sci ; 6(20): 1249-1253, Jan-Mar. 2007. tab
Artículo en Inglés | LILACS, BBO - Odontología | ID: biblio-850519

RESUMEN

Candida spp., mainly C. albicans, colonizes oral cavity of infants. Transmission by mother to childbirth, pacifier use, feeding habits and caries are factors related to Candida oral colonization. Some researches related that early childhood caries favor the oral colonization of C. albicans. The present literature review described the presence of Candida spp. in oral cavity of infants and its association with early childhood caries (ECC). The literature was searched for original papers relating Candida, pacifier and baby bottle usage and ECC. The articles were selected using Bireme and Medline databases. Manual tracing of references cited in key papers was also elicited. It can be concluded that Candida spp. colonization in the infants' oral cavity, especially C. albicans, can be related to the pacifier usage, feeding habits and caries lesions. The early childhood caries favor the C. albicans colonization, although it's role in the carious process need further studies to be elucidate scientifically.


Asunto(s)
Candida , Candida albicans , Caries Dental , Biberones , Chupetes , Patología Bucal
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