Abstract Objective: This study assessed the efficacy of two adjunct therapies (antibiotic and probiotic) for periodontal treatment based on clinical and immunological parameters in patients with Stage II and III Grade B periodontitis. Methodology: 45 patients were randomly allocated into three groups: control group (CG); antibiotic group (GAtb), in which 500 mg amoxicillin + 400 mg metronidazole were used; and probiotic group (GProb), for which Lactobacillus reuteri was used. Patients received medications after undergoing periodontal debridement. Clinical and immunological parameters were assessed at baseline, 30 days, and 90 days. Results: All therapies reduced bleeding on probing (BoP) in the evaluated periods, and the GAtb had a greater reduction at 90 days (p=0.03). The GProb group showed better results for plaque index (PI) and gingival recession (GR) compared to the GAtb at 90 days (p=0.0014; p=0.006). The area of inflammation (PISA Index) significantly decreased in all therapies in the evaluated periods. Therapies had no significant differences regarding moderate pockets. The GAtb had a greater reduction in probing depth (PD) for deep pockets (p=0.03) at 90 days and in the number of deep pocket sites at 30 days (p=0.04). The occurrence of adverse effects was commonly reported in the GAtb as a percentage per patient. The GAtb had a significant reduction in the concentration of interleukins IL-1β and IL-8 and an increase in IL-10 and TNF-α. The CG had a reduction in IL-6 and IL-1 β, whereas in the GProb there was no difference. Conclusion: After three months, none of the adjuvant therapies provided any additional benefit for subgingival instrumentation.

Abstract Objective To compare two corticotomy surgical protocols in rats to verify whether they alter conventional orthodontic movement. Methodology Sixty Wistar rats were divided into three groups – orthodontic movement (CG), orthodontic movement and corticotomy (G1) and orthodontic movement with corticotomy and decortication (G2) – and euthanized after 7 and 14 days. Tooth movement (mm), bone volume fraction and bone volume ratio to total volume (BV/TV), and bone mineral density (BMD) were evaluated by micro-CT. The total amount of bone was measured in square millimeters and expressed as the percentage of bone area in the histomorphometry. The number of positive TRAP cells and RANK/RANKL/OPG interaction were also investigated. Results Day 14 showed a statistically significant difference in orthodontic tooth movement in CG compared with G1 (7.52 mm; p=0.009) and G2 (7.36 mm; p=0.016). A micro-CT analysis revealed a difference between CG, G1 and G2 regarding BV/TV, with G1 and G2 presenting a lower BV/TV ratio at 14 days (0.77 and 0.73 respectively); we found no statistically significant differences regarding BMD. There was a difference in the total amount of bone in the CG group between 7 and 14 days. At 14 days, CG presented a significantly higher bone percentage than G1 and G2. Regarding TRAP, G2 had more positive cells at 7 and 14 days compared with CG and G1. Conclusion Corticotomy accelerates orthodontic movement. Decortication does not improve corticotomy efficiency.

Abstract Objective Considering the global public health problem of smoking, which can negatively influence bone tissue repair, the aim of this study is to analyze the influence of photobiomodulation therapy (PBM) on calvaria defects created surgically in specimens under the effect of cigarette smoke and analyzed with use of histomorphometric and immunohistochemistry techniques. Methodology Calvaria defects 4.1 mm in diameter were surgically created in the calvaria of 90-day-old rats (n=60) that were randomly divided into 4 experimental groups containing 15 animals each: control group (C), smoking group (S), laser group (L), and smoke associated with laser group (S+L). The animals were subjected to surgery for calvaria defects and underwent PBM, being evaluated at 21, 45, and 60 days post-surgery. The specimens were then processed for histomorphometric and immunohistochemistry analyses. The area of bone neoformation (ABN), percentage of bone neoformation (PBNF), and the remaining distance between the edges of the defects (D) were analyzed histometrically. Quantitative analysis of the TRAP immunolabeled cells was also performed. The data were subjected to analysis of variance (ANOVA) in conjunction with Tukey’s test to verify the statistical differences between groups (p<0.05). Results The smoking group showed less ABN compared to the other experimental groups in all periods, and it also showed more D at 21 days compared to the remaining groups and at 45 days compared to the laser group. The smoking group showed a lower PNBF compared to the laser group in all experimental periods and compared to smoking combined with LLLT group at 21 days. Conclusions PBM acted on bone biomodulation, thus stimulating new bone formation and compensating for the negative factor of smoking, which can be used as a supportive therapy during bone repair processes.

Resumo Introdução A quantidade de pacientes hipertensivos está aumentando e, a profilaxia com jato de bicarbonato de sódio é bastante empregada na prática clínica usando grande quantidade dessa substância em um período curto de tempo que poderia aumentar a pressão arterial. Objetivo Foi avaliado a alteração da pressão arterial antes e após os dois métodos de profilaxia dental e obtido a opinião de conforto do paciente em relação a esses métodos. Material e método Selecionou-se 20 pacientes, na faixa etária de 18 a 30 anos, que necessitavam de profilaxia para remoção de biofilme dental e foram submetidos aos três tipos diferentes de tratamento: jato de bicarbonato de sódio (G1), profilaxia convencional (G2), e controle (G3), em intervalos de um mês entre eles. Os pacientes foram divididos de forma randomizada. As aferições realizaram-se antes da profilaxia, imediatamente ao fim do procedimento, 15 e 30 minutos após o término do tratamento. O conforto do paciente foi medido por meio de uma Escala Analógica Visual (VAS) após o final de cada tratamento. Os dados foram analisados por meio de teste de Variância. Resultado Houve diferença estatisticamente significante quanto ao conforto dos procedimentos, sendo G2 e G3 melhores que G1. Observou-se aumento da pressão arterial diastólica no grupo jato de bicarbonato de sódio imediatamente após a profilaxia. Conclusão A profilaxia convencional é mais confortável do ponto de vista do paciente e não altera a pressão arterial.

Abstract Introduction The number of hypertensive patients is increasing and prophylaxis with bicarbonate jet are widely performed in clinical practice using large amounts of this substance in a short period of time, which may lead to increased arterial pressure. In the literature there are several studies that analyze the effect of sodium bicarbonate jet on the biofilm and dental structures, but not report the effect on arterial pressure. Aim Evaluated the change in arterial pressure before and after two procedures of dental prophylaxis, jet baking soda application and conventional prophylaxis, and patient opinion of the comfort of each system was obtained. Material and method We selected 20 patients aged 18 to 30 in need of prophylaxis to remove biofilm. The patients were placed into three different treatment groups: sodium bicarbonate jet (G1), conventional prophylaxis (G2) and control (G3), with a one month interval between treatments. Patients were divided into groups randomly. Measurements were performed immediately before and after the procedure, 15 and 30 minutes after the end of treatment. Patient comfort was measured using a Visual Analog Scale (VAS) at the end of each treatment. Data were analyzed by analysis of variance. Result There was a statistically significant difference in the comfort of the procedures, with G2 and G3 being better than G1. Additionally, an increase in the diastolic blood pressure was observed in sodium bicarbonate jet group evaluated just after the procedure. Conclusion The conventional prophylaxis is more comfortable from the patient stand point and does not alter arterial pressure.

O presente estudo teve por objetivo desenvolver e validar a versão brasileira do instrumento Diagnóstico do Trabalho de Hackman e Oldham. O processo de tradução e adaptação cultural do instrumento seguiu o procedimento adotado pelo Instrumento de Avaliação de Qualidade de Vida da Organização Mundial da Saúde - WHOQOL na elaboração das versões traduzidas dos instrumentos WHOQOL. O coeficiente alfa de Cronbach apresentou valores significativos para todas as dimensões avaliadas. Com relação à validade de critério, todas as dimensões apresentaram correlações significativas entre si. No que concerne à validade concorrente, inferiu-se que a correlação entre média das dimensões do Diagnóstico do Trabalho com o escore global do Instrumento de Avaliação da Qualidade de Vida no Trabalho de Walton foi significativa. A confiabilidade teste-reteste mostrou que em nenhuma das dimensões houve variação significativa e em todas as dimensões o índice de correlação entre ambas as aplicações demonstrou-se significativo. A versão brasileira do instrumento Diagnóstico do Trabalho de Hackman e Oldham foi validada, apresentando propriedades psicométricas satisfatórias, mantendo as características originais do instrumento.

This study aimed at developing and validating the Brazilian version of Hackman and Oldham's Job Diagnostic Survey. The process of translation and cultural adaptation of this instrument followed the procedure adopted by the World Health Organization Quality of Life assessment instrument - WHOQOL. Significant values of Cronbach's alpha were found for all dimensions evaluated. Regarding the criteria validity, significant correlations were found between all dimensions. As for the concurrent validity, it was inferred that the correlation between the average of the dimensions of the Job Diagnostic Survey and the total score of the assessment instrument of the Walton's Quality of work Life model was significant. The test-retest reliability showed that there was no significant variation in the dimensions, and that the correlation coefficient between both applications was significant in all dimensions evaluated. The Brazilian version of the Hackman and Oldham's Job Diagnostic Survey was validated and presented good psychometric properties and kept the instrument original features.