AIM: To evaluate the bonding durability of materials used as sealants on different dentitions. METHODS: Deciduous (D) and permanent (P) molars were divided into four groups (n=5) and sealed with Fluroshield (F) and OptiBond FL (FL). Blocks of composite resin were built, stored in distilled water (24 h/37 °C), sectioned into 0.8 mm2 and tested at tensile (0.5 mm/min) after 24 h and 6 months. The fractures were observed and classified into adhesive, cohesive or mixed types. The data were analyzed using repeated measures ANOVA and Tukey test (α=5%), with tooth as the experimental unit. RESULTS: There were differences for dentition (p=0.0097), dental sealant (p=0.0019) and time (p=0.0001). At 24h the highest bond strength was observed for OptiBond FL on deciduous and permanent teeth, similar to Fluroshield at both dentitions. After 6 months the bond strength of OptiBond FL did not decrease in the permanent teeth, but decreased similar to Fluroshield in deciduous teeth, the bond strength of Fluroshield decreased similarly in both dentitions. CONCLUSIONS: The bond strength of dental sealants varied with the experimental conditions.

Objetivo : Analisar a interferência da idade de ingresso em programas públicos de Odontologia para crianças e dos aspectos comportamentais familiares sobre a experiência com cárie dentária em crianças de zero a 48 meses de idade. Métodos : Estudo transversal com 465 crianças divididas em 3 grupos: crianças cujas mães ingressaram no programa quando gestantes (n=50); crianças que ingressaram no programa durante o primeiro ano de vida (n=230); e crianças que ingressaram no programa entre 13 e 18 meses de idade (n=185). Os testes χ2 e Kruskal-Walis (intervalo de confiança de 95%) foram utilizados para avaliar a relação das variáveis. Resultados : Encontrou-se associação entre a idade do ingresso nos programas e cárie dentária (p<0,001), sendo menor a prevalência para crianças cuja as mães ingressaram no programa durante as gestação e para aqueles que ingressaram no programa durante o primeiro ano de vida, o mesmo ocorreu em relação a assiduidade as consultas de retorno, dieta cariogênica, higiene oral noturna, duração de aleitamento noturno e escolaridade materna/responsável (p<0,001). Desfavorável nível socioeconômico (p>0,05) e higiene oral diária (p=0,214) foram variáveis comuns nos grupos com 99% de ocorrência. Assiduidade, higiene oral noturna e escolaridade materna (p<0,05) foram consideradas fatores de proteção à cárie dentária. Dieta cariogênica e aleitamento noturno foram consideradas determinantes para o aparecimento da cárie dentária. Conclusão : Para promover saúde oral infantil é essencial o ingresso ao programa e adoção de hábitos saudáveis de maneira precoce, além da adesão às orientações por seus responsáveis.

Objective : To analyze the interference of age in the entrance into a public dental care program for infants as well as family behavioral aspects about tooth decay experience in children 0 to 4 years old. Methods : Cross-sectional study involving 465 children who were divided into 3 groups: infants whose mothers joined the program during pregnancy (n=50); infants enrolled in the program during the first year of life (n=230); and infants enrolled in the program between 13 and 18 months old (n=185). The χ2 and Kruskal-Walis tests (95% confidence interval) were used to assess the relationship among variables. Results : There was an association between the age of entrance in the programs and dental caries (p<0.001). A lower prevalence was seen in infants whose mothers joined the program during pregnancy, and among those infants enrolled in the program during the first year of life. The same low prevalence occurred in relation to mothers’ commitment to attend follow-up visits with their infants, cariogenic diet, nighttime oral care, duration of night feeding and parents’ educational level (p<0.001). Unfavorable socioeconomic conditions (p>0.05) and daily oral care (p=0.214) were common variables in the groups with 99% of occurrence. Commitment to attend follow-up visits, nighttime oral care and parents’ educational level (p>0.05) were considered protective factors for dental caries. Cariogenic diet and night feeding were determinant factors to the appearance of dental caries. Conclusion : To promote children oral health it is essential to enroll children in oral health programs and adopt healthy habits as early as possible, besides the adherence of the child to their parents’ advice.

AIM: This study analyzed and compared the experience of dental caries in 300 children aged 0 to 48 months, who were participants and non-participants of a preventive program 'Dentistry for babies', as well as the correlation between assiduity of dental visits and experience of dental caries. METHODS: The subjects were randomly selected and divided into two groups: G1 'Non participant children of the Program' (n=100) and G2 'Participant Children of the Program' (n=200). Each group was subdivided in two subgroups: 0-24 months and 25-48 months. The collected data from G2 were analyzed, relating the variation of the dmft index (dmft refers to primary teeth: d = decayed, m = missing/extracted due to caries, f = filled, t = teeth) (C) and dental caries prevalence (P) with the influence of assiduity factor in each subgroup. To collect data, clinical examinations were performed using tactile and visual criteria by a single calibrated examiner. The data were statistically analyzed using the 'paired t-test', 'Mann-Whitney' and 'Chi-Squared' tests (p<0.05). RESULTS: It was found that prevalence and dmft index were statistically significant (P=0.0001) with the greatest values observed in G1 (p=0.0001). The values were: PG1 (73%), PG2 (22%), CG1 (3.45±3.84), CG2 (0.66±1.57). Assiduity was significant in G2 (p=0.0001). The values observed were: P-Assiduous (2%), P-Non-assiduous (42%), C-Assiduous (0.04±0.31), and C-Non-assiduous (1.29±2.01). CONCLUSIONS: The participation in the program had a positive influence on the oral health of babies. Complete assiduity to the program resulted in the lowest rates and prevalence of dental caries.

RESUMO Objetivo: Avaliar o impacto na saúde bucal de crianças atendidas em um programa de atenção precoce “Odontologia para Bebês” da prefeitura do município de Jacareí (SP), por meio da comparação da experiência de cárie entre indivíduos participantes e não participantes do programa. Métodos: Foram avaliadas 300 crianças de 0 e 48 meses de idade, as quais foram divididas em 2 grupos: G1“Bebês não participantes do Programa” (n = 100) e G2 “Bebês do Programa” (n = 200). Cada grupo foi subdividido em dois, o primeiro com crianças de 0 a 24 meses, e o segundo de 25 a 48 meses. Todas as crianças receberam avaliação clínica quanto à presença de lesões de cárie (método táctil e visual). Os dados foram tabulados e analisados estatisticamente pelos testes t de Student pareado, Mann-Whitney e χ2, com nível de significância de 5%. Resultados: Houve diferença estatística para a prevalência (P) e o índice índice médio de dentes decíduos cariados, com extração indicada e obturados (ceod) (C), sendo os maiores valores observados para G1(p < 0,0001). Os valores foram: PG1 (73%), PG2 (22%), CG1 (3,45 ± 3,84), CG2 (0,66 ± 1,57). Conclusão: Concluiu-se que participar do programa interferiu positivamente na saúde bucal dos bebês.

ABSTRACT Objective: To assess the impact of the “Dentistry for Infants” early dental care program run by Jacareí County (SP) by comparing the caries of individuals participating and not participating in this program. Methods: In total, 300 children between 0 and 48 months old were assessed in the following two groups: infants not participating in the program (G1, n = 100) and infants participating in the program (G2, n = 200). Each group was further divided according to age in subgroups of 0 to 24 months and 25 to 48 months. All children were clinically assessed for carious lesions using the visual-tactile method. The data were statistically analyzed using a paired Student's t-test, Mann-Whitney test, and χ2 test at a 5% significance level. Results: There was a significant difference in the prevalence (P) and mean index of deciduous teeth (deft) (C) that were decayed, indicated for extraction and filled, and the highest values were observed in G1 (p < 0.0001). The values were as follows: PG1, 73%; PG2, 22%; CG1, 3.45 ± 3.84; and CG2, 0.66 ± 1.57. Conclusion: Participating in the program positively impacted the infants’ oral health.

O objetivo deste estudo foi avaliar a resistência de união (RU) de adesivos autocondicionantes com e sem HEMA à dentina. A superfície oclusal de 20 terceiros molares foi removida e a dentina abrasionada com lixa de carbeto de silício de granulação 600. Em seguida, os dentes foram divididos aleatoriamente em 4 grupos (n=5) e restaurados com os sistemas adesivos Go, Adper SE Plus, OptiBond All-In-One ed Clearfil 3S Bond e resina composta Filtek Z350. Após fotoativação (600 mW/cm²), eles foram armazenados em água destilada (37ºC/24 h) e secionados nas direções mésio-distal e vestíbulo-lingual, para obter corpos-de-prova em formato de palito (0,8 mm²). Os palitos foram tracionados em máquina de ensaio universal com velocidade de 0,5 mm/min, e os modos de fratura observados em microscópio eletrônico de varredura e classificados em adesiva, coesiva ou mista. Os dados de RU (em MPa) foram analisados estatisticamente por ANOVA a um critério e teste de Tukey com nível de significância de 5%. A menor RU foi observada para o adesivo GO (10,57 ± 3,72) (p=0,001). Adper SE Plus (29,08 ± 8,93), OptiBond All-In-One (28,36 ± 6,49) e Clearfil 3S Bond (28,62 ± 6,97) foram estatisticamente semelhantes entre si (p>0.05). Fraturas mistas predominaram nos grupos. Concluiu-se que a influência do HEMA na RU foi material-dependente.

This study analyzed the bond strength (BS) of HEMA versus HEMA-free self-etch adhesive systems to dentin. The occlusal surface of 20 third molars was removed and the dentin was abraded with 600-grit silicon carbide paper. The teeth were randomly assigned to 4 groups (n=5) and restored with GO, Adper SE Plus, OptiBond All-In-One, and Clearfil 3S Bond adhesive systems and Filtek Z350 composite. After light curing (600 mW/cm²), the teeth were stored in distilled water at 37ºC for 24 h and were sectioned in the mesiodistal and buccolingual directions to obtain sticks (0.8 mm²). The sticks were subjected to tensile force using a universal testing machine (0.5 mm/min), and the modes of failure were analyzed by scanning electron microscopy and classified as adhesive, cohesive, or mixed. The BS data (in MPa) were treated using one-way ANOVA and Tukey’s tests at 5% significance. GO presented the lowest mean bond strength value (10.57 ± 3.72) and differed significantly from the other materials (p=0.001), which, in turn, presented statistically similar results (p>0.05) among themselves: Adper SE Plus (29.08 ± 8.93), OptiBond All-In-One (28.36 ± 6.49), and Clearfil 3S Bond (28.62 ± 6.97). Mixed fractures were the most prevalent. It was concluded that the influence of HEMA on BS to dentin was material dependent.