Dental changes in children with congenital Zika syndrome.

OBJECTIVE: To describe oral alterations in children with congenital Zika syndrome (CZS). METHODS: This was a case series, whose research instrument was a structured questionnaire, associated with the use of medical record data and extra and intraoral clinical examination. RESULTS: Thirty-two children were evaluated, the majority male (18/32%-56.3%), mean age 22 months (SD = 2.71). It was also observed that the majority of the patients (19/32%-59.4%) presented a low family income. All the children had a mean head circumference of 29.43 cm (SD = 1.42). Regarding the alterations, an ogival-shaped palate was observed in 14 children (43.7%), and delayed chronology of eruption was observed in 15 children (46.9%), of whom 7 children (21.9%) did not present eruption of the upper left lateral incisor (p = .0002) and upper right lateral incisor (p = .002) until the moment of analysis. Additionally, 03 children with yellowish dental pigmentation were identified in erupted teeth after the onset of phenobarbital use. Enamel hypoplasia was identified in 9 children (28.1%) and only one child with ankyloglossia. CONCLUSION: CZS may present delayed chronology of eruption, ankyloglossia, ogival-shaped palate, and enamel hypoplasia, requiring dental follow-up aimed at prevention, promotion, and rehabilitation of the health of these children.

Herpesvírus humano: tipos, manifestações orais e tratamento / Human herpes virus: types, oral manifestations and treatment

Os herpes vírus humanos (HHV) fazem parte de uma família -Herpesviridae- e têm como seu hospedeiro, unicamente, o homem. São ubíquos e latentes e, uma vez ocorrida a primo-infeção, permanecem no organismo do indíviduo afetado durante toda a sua vida. O presente trabalho se constitui em uma revisão de literatura com o objetivo de abordar os tipos de HHV e seus tratamentos, com ênfase nas manifestações orais. Os HSV 1 e 2 estão geralmente associados à Gengivoestomatite Herpética Primária, Herpes Labial Recorrente e Herpes Intraoral Recorrente. O HHV-3 provoca a Varicela e, por reinfecção, pode ser a causa do surgimento do Herpes-zóster. O HHV- 4 está diretamente ligado à Mononucleosa Infecciosa, ao Linfoma de Burkitt e ao Carcinoma Nasofaríngeo. O HHV-5 pode levar a má-formações congênitas. O HHV-6 provoca o exantema súbito e está associado à esclerose múltipla, o que demonstra seu forte potencial neuro-invasivo. O HHV-7 correlaciona-se ao vírus da AIDS, uma vez que, para ambos, a molécula CD4 é essencial a fim de funcionar como receptor, e o HHV-8 está estreitamente ligado ao Sarcoma de Kaposi. Nenhuma das terapias usadas para o tratamento representa uma cura para a infecção do vírus, uma vez que elas atuam apenas na sua fase ativa. O conhecimento dos tipos virais, das suas características clínicas e manifestações orais são de suma importância para o correto diagnóstico da doença, para a obtenção de sucesso no tratamento e, consequentemente, para a manutenção da saúde populacional.

The human herpes viruses (HHV) take part of a virus family - Herpesviridae- and these viruses have human as only host. They are ubiquitous and latents, and once the primary infection has occurred, they stay within the host's organism for their entire life. This paper is a review about the human herpes viruses types, their treatments and emphasizes their oral manifestations. The HSV 1 and 2 are usually associated to Primary Herpetic Gingivostomatitis, Recurrent Labial Herpes and Reccurent Intra-Oral Herpes. The HHV-3 causes Varicella, mainly in children, and, by reinfection, can be the cause of the appearance of Herpes-zoster. The HHV-4 is directly linked to Infectious Mononucleosis, Burkitt Lymphoma and Nasopharyngeal Carcinoma. The HHV-5 can lead to congenital malformations. The HHV-6 causes sudden rash and is associated with multiple scleroszis, which shows its strong neuro-invasive potential. The HHV-7 is related to AIDS virus because, for both, the CD4 molecule is essential to act as receiver. The HHV-8 is closely linked to Kaposi's Sarcoma. None of the therapies used as treatment gives a cure to the viral infection, once the drugs only have their effect during the virus active phase. The knowledge of the types of herpes virus, its clinical characteristics and oral manifestations is of paramount importance for the correct diagnosis of the disease to obtain treatment success and, consequently, maintenance of population health.

Resinas compostas: concentração e profundidade de polimerização: [revisão] / Composed resins: contraction and depth of polymerization: [review]

A evolução das resinas compostas tem sido constatada na melhoria do seu comportamento estético e no aumento da sua resistência à compressão e à abrasão. O objetivo do presente trabalho foi realizar uma revisão da literatura abordando os aspectos da contração e profundidade de polimerizaçao. Apesar dos avanços alcançados, a contração de polimerização, inerente à resina composta, continua sendo uma grande deficiência e, por enquanto, impossível de ser evitada.

The evolution of resins has been evidenced in the improvement of its aesthetic behavior and in the increase of its compressive strength and the abrasion. The aim of the present work was to carry through a revision of literature approaching the aspects of the contraction and depth of polymerization. Despite the reached advances, the contraction of polymerization, inherent to the composed resin, continues being a great deficiency and, for the time being, impossible to be prevented.