Er:YAG laser influenced the adhesive systems interface, hampering hybrid layer formation.

This study aimed to evaluate the influence of fluoride-containing mouthrinse solutions (Fluorgard and Oral B) on the superficial microhardness of two resin-modified glass ionomer cements (Vitremer and Fuji II LC). Fifteen discs-shaped specimens of each glass ionomer cement (Ø10 mm; 2 mm thick) were prepared, thereby forming two groups. After 24-hour storage in artificial saliva, the microhardness was measure and the data were recorded. Next, each group was divided into three subgroups (n = 5), according to the solution to be immersed in. Control specimens were kept in artificial saliva along the whole experiment. The test specimens were kept in mouthrinse solution for 30 days. Vickers surface microhardness was analyzed at predetermined evaluation periods: 24 h, 48 h, 7, 14, 21 and 30 days after specimens' preparation. Data were subjected to three-way ANOVA and to Tukey test (p<0.05). A better behavior of Fuji II LC was observed and Fluorgard affected most the characteristics of the tested materials. It may be concluded that fluoride-containing solutions influenced the tested characteristics of materials, mainly of Vitremer.

The aim of the present study was to evaluate the influence of different photopolymerization (halogen, halogen soft-start and LED) systems on shear bond strength (SBS) and marginal microleakage of composite resin restorations. Forty Class V cavities (enamel and dentin margins) were prepared for microleakage assessment, and 160 enamel and dentin fragments were prepared for the SBS test, and divided into 4 groups. Kruskal-Wallis and Wilcoxon tests showed statistically significant difference in microleakage between the margins (p < 0.01) with incisal margins presenting the lowest values. Among the groups, it was observed that, only at the cervical margin, halogen soft-start photo polymerization presented statistically significant higher microleakage values. For SBS test, ANOVA showed no statistical difference (p > 0.05) neither between substrates nor among groups. It was concluded that Soft-Start technique with high intensity end-light influenced negatively the cervical marginal sealing, but the light-curing systems did not influence adhesion.

A cirurgia paraendodôntica é um conjunto de procedimentos com o objetivo básico de tratar lesões perirradiculares decorrentes de complicações do tratamento endodôntico ou seu insucesso. O objetivo deste trabalho é apresentar um caso clínico de cirurgia paraendodôntica em um incisivo lateral superior. O tratamento da lesão perirradicular foi realizado através da curetagem, apicectomia, retropreparo com inserto de ultrassom e retro-obturação com MTA. O exame histopatológico confirmou o diagnóstico de granuloma periapical. O controle de um ano demonstrou a neoformação óssea e ausência de sintomatologia.

O hipnotismo possui aplicações em diferentes especialidades como Psicologia, Odontologia, Cirurgia, Obstetrícia, Oncologia, tratamento da dor crônica, com diferentes finalidades e ótimos resultados. O objetivo desse trabalho foi utilizar a hipnose como complemento para realizar uma exodontia, buscando o controle da ansiedade e da dor. Paciente R.C.A.S., 50 anos, sexo feminino, com indicação de extração da unidade 36, submeteu-se a sete seções de hipnose até poder realizar a extração. Concluído o procedimento, a paciente afirmou não ter sentindo dor. O estudo mostrou que a hipnose pode reduzir satisfatoriamente a ansiedade e a dor em casos de exodontia. Mais estudos são necessários para avaliar o efeito da hipnose em outras cirurgias bucomaxilofaciais.