ABSTRACT Objective: To evaluate the oral health of adolescents who participated in an oral health preventive program during the first decade of life. Material and Methods: For the evaluation of dental caries and gingival condition, DMFT and Community Periodontal Index were used, both recommended by the World Health Organization. To verify the occurrence of dental fluorosis, the Dean index was used. Results: Data collection was obtained from 252 patients aged 12 to 16 years. The average DMFT index was 1.14; in relation to the gingival condition, the index of healthy gingival tissue prevailed and the average of this value was 84%, with code 0 being more registered in tooth 11, code 1, more frequently in teeth 16/17 and 36/37 and for last, code 2, in tooth 31 most frequently. Dean's index showed a percentage of 89% of patients without clinical signs of dental fluorosis. Conclusion: Adolescents participating in an oral health preventive program in the first decade of life exhibited very satisfactory results regarding the prevention of caries disease, healthy periodontal condition and reduced prevalence of dental fluorosis.

ABSTRACT Objective: To evaluate the breastfeeding practice of mothers of children assisted in the educational and preventive dentistry program to create actions to promote, protect and support breastfeeding. Material and Methods: This is a cross-sectional study with a quantitative approach carried out in a dental clinic for babies. A questionnaire was applied to the mothers containing 10 multiple choice questions about breastfeeding practices and attitudes. Data were stored in a Microsoft Excel database for descriptive statistical analysis. Results: 614 mothers answered the questionnaire. It was found that 96.4% of mothers considered breastfeeding the best way to feed a baby and the child's health benefits stood out as the main reason (98.7%) for breastfeeding. According to 82.9% of mothers, the ideal time to breastfeed the baby is up to 2 years of age; 81.8% breastfed or intended to breastfeed their children up to this age, finding it perfectly natural to breastfeed in public (72.1%). The greatest fear of mothers was not being able to breastfeed their child long enough (61.4%), feeling guilty about it (77%). On the other hand, breastfeeding in public was considered a fantastic attitude (56.8%). Conclusion: Mothers in this sample have information about the recommendations of the health agencies regarding breastfeeding; however, there was a large weaning index among them.

The purpose of this study was to analyze luxation injuries in children between the ages of 0 and 5 years treated at an emergency service department. A total of 1,703 records, corresponding to a period of 10 years at the Emergency Center of the Baby Clinic at Londrina State University, Brazil, were analyzed. The age, gender, etiologic factors, type of injury, injured teeth, treatment and time interval between injury and treatment were determined for each patient. Of the examined records, 409 patients met the study criteria and included a total of 679 injured teeth. Statistical analyses were carried out using the chi-square test with the level of significance set at 5%. Trauma incidence was higher in boys (57.0%) and in children less than two years of age (40.3%). Falling while walking or running was the most predominant etiologic factor (37.7%), and the most prevalent type of injury was subluxation (32.6%). Luxation injuries decreased with increasing age (p = 0.045). Treatment usually occurred within the first 1-15 days and was significantly associated with the type of trauma (p = 0.041). "Monitor only" was the treatment most frequently observed (74.0%). In conclusion, more luxation injuries were found in younger children, predominantly in boys. Falls resulting from walking or running were the etiologic factor most observed, with subluxation as the most common type of trauma. Treatment usually occurred within the first 15 days after the injury. Despite the severity of these injuries, "monitor only" was the eligible treatment.

"When" and "how" the dentist intervenes have repercussions on children's physical and emotional patterns. The objective of the present study was to conduct a longitudinal behavioral analysis during dental care of babies aged 0 to 3 years. A total of 216 patients seen at the Baby Clinic of the School of Dentistry at Araçatuba, São Paulo State University (UNESP), were selected. The selection criterion was attendance at ten dental care sessions at bimonthly intervals for routine procedures such as clinical examination and oral hygiene. There was a predominance of cooperative behavior compared to uncooperative behavior when each visit was analyzed separately. The behavior of the patients must have been directly influenced by their psychomotor development. Constant attendance and exposure of the baby to non-stressful dental stimuli are factors that favor a cooperative behavior.

Regional odontodysplasia (RO) is a rare developmental anomaly involving both mesodermal and ectodermal dental components in a group of contiguous teeth. It affects the primary and permanent dentitions in the maxilla and mandible or both jaws. Generally it is localized in only one arch. The etiology of this dental anomaly is uncertain. Clinically, affected teeth have an abnormal morphology, are soft on probing and typically discolored, yellow or yellowish-brown. Radiographically, the affected teeth show a "ghostlike" appearance. This paper reports the case of a 5-year-old girl presenting this rare anomaly on the left side of the maxillary arch, which crossed the midline. The primary maxillary left teeth (except for the canine) and the primary maxillary right central incisor were missing due to previous extractions. The permanent teeth had a "ghostlike" appearance radiographically. The treatment performed was rehabilitation with temporary partial acrylic denture and periodic controls. In the future, the extraction of affected permanent teeth and rehabilitation with dental implants will be evaluated. The presentation of this case adds valuable information to pediatric dentists to review special clinical and radiographic features of RO, which will facilitate the diagnosis and treatment of patients with this condition.

OBJETIVO: O objetivo do presente estudo foi verificar o efeito anticariogênico de soluções aciduladas com baixa concentração de flúor, usando um modelo de ciclagem de pH e esmalte bovino. MATERIAL E MÉTODO: Blocos de esmalte foram polidos, submetidos ao teste de microdureza de superfície (SMH) e divididos aleatoriamente em 12 grupos experimentais e um placebo. Os blocos foram submetidos à ciclagem de pH por 7 dias e a aplicações diárias de soluções de NaF a 0,05% e 0,1% (1x) e de 0,02% (2x), com pHs 4.0, 5.0, 6.0 e 7.0. A seguir, determinou-se a SMH novamente para o cálculo da porcentagem de alteração da microdureza de superfície (%SMH). Os dados de %SMH foram homogêneos e submetidos a análise de variância e teste de Tukey (5%) considerando as concentrações de flúor e pH. RESULTADOS: O pH influenciou a %SMH nas soluções de NaF 0,02% e 0,05% com pH 4.0, no qual a perda mineral foi menor quando comparado ao pH 7.0 (p<0,05). Os grupos das soluções de NaF 0,02% - pH 4.0, e de NaF 0,05% - pH 7.0 mostraram resultados similares (p>0,05). A relação dose-resposta foi observada entre as soluções testadas, com melhor efeito anticariogênico para a solução de NaF 0,1%. CONCLUSÃO: Os resultados sugerem que a acidificação das soluções com baixa concentração de fluoreto reduz a perda mineral.

OBJETIVES: The aim of this study was to verify the anticariogenic effect of acidulate solutions with low NaF concentration, using pH-cycling model and bovine enamel. MATERIAL AND METHODS: Enamel blocks were submitted to the surface microhardness (SMH) test and randomly divided in 12 experimental and one placebo groups. The blocks were submitted to pH cycling for 7 days, with daily applications once/day of 0.05% NaF and 0.1% NaF and twice/day of 0.02% NaF solutions. Four different pH: 4.0, 5.0, 6.0 and 7.0 were used. Next, SMH test was again used to determine the surface microhardness percentage change (%SMH). Data obtained for %SMH were homogeneous and passed through variance analyses and Tukey's test (5%) as far as fluoride concentrations and pH. RESULTS:The results showed that pH influenced %SMH in 0.02% NaF and 0.05% NaF solutions with pH 4.0, which had less mineral loss compared to pH 7.0 (p<0.05). The 0.02% NaF - pH 4.0, and 0.05% NaF - pH 7.0 groups showed similar results (p>0.05). A dose-response relationship was observed among the tested solutions, with better anticariogenic effect for the 0.1% NaF solution. CONCLUSION: The results suggest that the addition of citric acid to acidulate mouth rinses reduce mineral loss.

OBJETIVOS: Este trabalho avaliou o efeito anticariogênico do flúor liberado por dois produtos comumente aplicados em crianças. MÉTODOS: Para isto, utilizaram-se blocos de esmalte de dentes bovinos distribuídos aleatoriamente em três grupos de tratamento: controle (C), verniz fluoretado (V) e solução de diamino fluoreto de prata (D). Os blocos foram submetidos à ciclagem de pH a 37ºC. Após, realizou-se o teste de microdureza de superfície (para o cálculo da % da perda de microdureza de superfície - %SML) e em secção longitudinal do esmalte (% de alteração da área mineral - %deltaZ) e a determinação do flúor presente no esmalte (F/P x 10-3). RESULTADOS: As concentrações de flúor (ANOVA, p<0,05) na 1ª camada do esmalte, antes da ciclagem de pH, foram (C, V e D): 1,6ª; 21,6b e 4,0c. Os resultados de %SML (Kruskal-Wallis, p<0.05) foram: -64,0ª, -45,2b e -53,1c. Os valores de %deltaZ (ANOVA, p<0.05) foram: -18,7ª, -7,7b e -17,3ª. CONCLUSÃO: Os dados sugerem que o flúor liberado pelo verniz apresentou maior interação com o esmalte promovendo menor perda mineral quando comparado à solução de diamino de prata.

OBJECTIVE: In the present investigation, the anticariogenic effect of fluoride released by two products commonly applied in infants was evaluated. METHODS: Bovine sound enamel blocks were randomly allocated to each one of the treatment groups: control (C), varnish (V) and diamine silver fluoride solution (D). The blocks were submitted to pH cycles in an oven at 37ºC. Next, surface and cross-sectional microhardness were assessed to calculate the percentage loss of surface microhardness (%SML) and the mineral loss (deltaZ). The fluoride present in enamel was also determined. RESULTS: F/Px10-3 (ANOVA, p<0.05) in the 1st layer of enamel before pH-cycling were (C, V and D): 1.61ª; 21.59b and 3.98c. The %SMH (Kruskal-Wallis, p<0.05) were: -64.0ª, -45.2b and -53.1c. %deltaZ values (ANOVA, p<0.05) were: -18.7ª, -7.7b and -17.3ª. CONCLUSION: The data suggested that the fluoride released by varnish showed greater interaction with sound enamel and provided less mineral loss when compared with silver diamine solution.