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AIMS: To describe oral manifestations in children born with microcephaly attributed to congenital Zika virus syndrome (CZS). METHODS: Data was collected in semiannual intervals from 2017 to 2019, by oral exams of the children and interview with caregivers at a Public Dental Center in Rio de Janeiro, Brazil. A single calibrated examiner performed clinical examinations. RESULTS: Of 38 eligible children, 34 were followed-up from 12 to 30 months of age, 20 boys and 14 girls. The mean age of emergence of their first primary tooth was 12.4 months (SD = 2.9). By 30 months of age only 14.7% (n = 5) had complete primary dentition. Alteration in the sequence of tooth emergence was observed in 41.1% (n = 14). Radiographic examination demonstrated dental agenesis (14.7% n = 5). Dental developmental alterations (38.2%, n = 13), enamel defects (14.7%, n = 5), eruption cysts/hematoma (23.5%, n = 8), gingival bleeding (55.8%, n = 19), narrow palate, and bruxism (64.7%, n = 22) were also observed. No child had dental caries. CONCLUSION: Children with microcephaly attributed to CZS presented oral manifestations early in life.

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The aim of the present study was to evaluate the microtensile bond strength and the microleakage of a bulk-fill composite resin compared with a conventional incremental composite resin, in permanent molars and under cariogenic challenge using a Streptococcus mutans model. Permanent human third molars (n = 60) with an occlusal cavity of 5×3×2 mm were randomly allocated into four subgroups of restorative treatments: conventional composite resin with (n = 15) and without (n = 15) cariogenic challenge (Z350-E and Z350-C experimental and control groups, respectively), and bulk-fill composite resin with (n = 15) and without (n = 15) cariogenic challenge (Bulk Fill-E and Bulk Fill-C, respectively). Ten specimens from each subgroup were submitted to microtensile strength, and 5, to microleakage. The cariogenic challenge was conducted using the Streptococcus mutans strain (ATCC) for 7 days. The stickers obtained (1 × 1 × 2 mm) were submitted to a microtensile strength test, followed by classification of the fracture mode. Microleakage was performed using a scoring system. The data were analyzed by Kruskal-Wallis and Mann-Whitney tests (p < 0.05). Filtek Z350 XT resin presented higher microtensile bond strength than Bulk Fill resin without (19.02 ± 4.90 and 8.76 ± 3.94MPa, respectively; p < 0.001) and with cariogenic challenge (22.69 ± 7.86 and 13.31 ± 3.38MPa, respectively; p < 0.02). Z350-C and Bulk Fill-C resins presented a higher prevalence of mixed fractures (23 and 14%, respectively) in the specimens submitted to cariogenic challenge than those of the control groups, whereas microleakage was similar (p = 0.85). The conventional composite resin had higher microtensile bond strength than the bulk-fill resin, but both resin types had similar adhesion quality and microfiltration scores.

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A mordida cruzada anterior (MCA) refere-se a uma maloclusão cuja relação vestíbulo-lingual entre incisivos superiores e inferiores é anormal, com sobressaliência negativa. Esta alteração pode promover comprometimento da estética dento-facial e das funções do sistema estomatognático. A MCA pode ser classificada em 3 tipos: Dentária (MCAD), Funcional (MCAF) e esquelética (MCAE). O objetivo deste trabalho foi, por meio de uma revisão de literatura, apresentar as diferentes possibilidades de tratamento da MCA nas dentições decídua e mista. O tratamento da MCAD tem como objetivo a correção das inclinações anormais dos elementos envolvidos. O tratamento da MCAF pode ser realizado por movimentação dentária pelas pistas diretas preconizadas por Planas. A abordagem da MCAE tem como objetivo a correção esquelética e dependerá do grau de displasia óssea e da idade de início do tratamento. Concluiu- se que a MCA deve ser tratada tão logo seja diagnosticada, por meio das diferentes formas de tratamento apresentadas, de acordo com a etiologia e apresentação clínica. Todos os tratamentos propostos apresentam altos índices de sucesso se corretamente planejados e executados.

Anterior crossbite (MCA) refers to a malocclusion whose vestibular- lingual relationship between upper and lower incisors is abnormal, with a negative overjet. This alteration may promote impairment of dento-facial aesthetics and functions of the stomatognathic system. The MCA can be classified into 3 types: Dental (MCAD), Functional (MCAF) and skeletal (MCAE). The objective of this literature review was to present the different possibilities of MCA treatment in the deciduous and mixed dentitions. The treatment of MCAD aims at correcting the abnormal inclinations of the involved elements. The treatment of MCAF can be performed with composite as an inclined plane tracks recommended by Planas. The MCAE approach aims at skeletal correction and depends on the degree of bone dysplasia and the age at which treatment begins. According this study, we can conclude that the MCA should be treated as soon as diagnosed, by the different forms of treatment presented, according to etiology and clinical presentation. All the proposed treatments may have high success rates if correctly planned and executed.

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Este estudo tem como objetivo, partindo de uma revisão da literatura, demonstrar a possibilidade e a importância da interação entre médicos pediatras e cirugiões-dentistas, em especial odontopediatras, para a manutenção e o monitoramento da saúde bucal de bebês e crianças. Para tal propósito foi sugerido um Protocolo Clínico que procura adequar os procedimentos relacionados com a manutenção da saúde bucal às rotinas realizadas pelos pediatras na sua prática clínica diária. Acreditamos que a adoção das medidas sugeridas e explicitadas no protocolo desenvolvido poderão constituir-se em um diferencial para os pediatras que o adotarem...

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