Evaluation of Antimicrobial Photodynamic Therapy as an Adjuvant in Periodontal Treatment in Individual with Down Syndrome

Objective: To evaluate the effectiveness of Antimicrobial Photodynamic Therapy (aPDT), associated with scaling and root planing in the non-surgical periodontal treatment of individuals with Down Syndrome. Material and Methods: A controlled, randomized, split-mouth study was conducted. A total of 8 participants diagnosed with Down Syndrome aged 17-38 years of both sexes with clinical periodontitis were included in the study. Participants were treated at least three times: at the baseline, Plaque Index (PI), Bleeding on Probing (BOP), and Probing Pocket Depth (PPD) were obtained. After one week, conventional scaling and root planing were performed, and two quadrants were randomly selected for aPDT application. The reassessment was obtained one month after the aPDT application. The significance level was set at 5%. Analyses were performed considering a 95% confidence interval. Results: In the intergroup evaluation, no statistically significant differences were observed (p>0.05). In the intragroup evaluation, no statistically significant variations were observed in relation to the PI (p>0.05) and PPD (p>0.05); however, a statistically significant reduction in the BOP was observed between the test group (p=0.013) and control group (p=0.015). Conclusion: The use of aPDT as adjuvant therapy did not promote additional benefits in decreasing PI and PPD after 1 month of treatment. However, a significant reduction in the BOP was observed in the intragroup evaluation

Laser therapy as treatment for oral paresthesia arising from mandibular third molar extraction

Oral paresthesia is a localized condition of sensory abnormality that occurs in the presence of injury in one of the nerves in the region after certain dental procedures. The aim of this study was to present a case report of a patient who received low-level laser therapy as treatment for inferior alveolar nerve paresthesia due to mandibular third molar extraction surgery. A 25-year-old female patient reported lack of sensitivity for 6 months in various regions of the bucomaxillofacial complex after surgery. Laser therapy (808 ± 10nm, 100 mW, 3J per point and 30 seconds per point) was indicated twice a week. The degree of sensitivity was evaluated using a Visual Analog Scale (VAS) and with the aid of a microbrush. Prior to laser therapy, the patient reported VAS = 10, i.e., total lack of sensitivity. After 72 hours of the first session, the patient reported improvement of sensitivity in the chin (VAS = 5) and oral regions (VAS = 5), reporting recovery of sensitivity and that the area of paresthesia decreased. After 8 sessions, the patient reported total recovery of sensitivity in the chin, oral and gum regions (VAS = 0), with paresthesia being limited only to the left lower lip region and below it. After 26 sessions, the patient reported recovery of sensitivity in all affected regions (VAS = 0), with positive responses to the brush touch. Within the parameters used, laser therapy was effective in the treatment of inferior alveolar nerve paresthesia after third molar tooth extraction

Cirurgiões-dentistas e as práticas integrativas e complementares à saúde bucal: uma análise por estados e regiões brasileiras

Introdução: A Odontologia vem se aprimorando com a utilização de novos métodos terapêuticos, como por exemplo, a incorporação de práticas integrativas e complementares (PIC), com base na perspectiva de estabelecer novas ferramentas de atendimento integral e atuação transdisciplinar. Objetivo: Avaliar a quantidade e a distribuição de cirurgiões-dentistas habilitados em fitoterapia, terapia floral, hipnose, laserterapia, odontologia antroposófica, ozonioterapia e de especialistas em acupuntura e homeopatia, de acordo com os estados e regiões brasileiras. Material e Métodos: Tratou-se de uma pesquisa transversal, com abordagem descritiva, a partir de dados secundários e de acesso público, provenientes do Conselho Federal de Odontologia (CFO). Resultados: No Brasil, há 2.932 cirurgiões-dentistas habilitados ou especialistas em PIC, havendo um maior número de registros na prática da laserterapia (n= 1.571; 53,6%), seguida por acupuntura (n= 497; 16,9%). Dentre as PIC avaliadas, observou-se, no país, um menor número de registros na prática fitoterapia (n= 26; 0,9%), seguida por odontologia antroposófica (n= 36; 1,2%) e terapia floral (n= 49; 1,7%). Por regiões brasileiras, verifica-se que a região Sudeste detém o maior número de profissionais habilitados ou especialistas em todas as PIC avaliadas. As regiões Norte e Nordeste não apresentam profissionais habilitados em odontologia antroposófica (n= 0; 0%). Em todo o Brasil, observou-se na laserterapia, o maior número de habilitados por cirurgião-dentista, com uma proporção de 1/232. Dentre todos os estados, o Espírito Santo detém a maior proporção observada entre as PIC avaliadas, na prática da laserterapia (1/82). Conclusão: Com base nos resultados encontrados e de acordo com o grande número total de cirurgiões-dentistas em atividade no Brasil, concluiu-se que ainda existem poucos profissionais habilitados em fitoterapia, odontologia antroposófica, terapia floral, hipnose, ozonioterapia, laserterapia, e especialistas em homeopatia e acupuntura em todo o país. Além disso, nota-se discrepâncias importantes relacionadas ao número desses profissionais entre estados e regiões brasileiras

Use of high- and low-intensity lasers in the treatment of dentin hypersensitivity : a literature review

Dentin hypersensitivity (DH) is defined as an exaggerated sensitivity of vital dentin exposed to thermal, chemical and tactile stimuli. This study aimed to evaluate, through a literature review, the applicability of high- and low-intensity lasers in the

Evaluation of dental enamel microproperties after bleaching with 35% hydrogen peroxide and different light sources : an in vitro study

To evaluate the tooth enamel surface morphology after the action of 35% hydrogen peroxide with and without LED activation. Material and Methods: 70 bovine incisors with an enamel surface of 4x4x3 mm were used, prepared for reading superfic

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Democratizando o Acesso à Vida e Obra de Paulo Freire: a experiência do Projeto Paulo Freire Memória e Presença

Este artigo apresenta fragmentos da experiência e das contribuições do projeto “Paulo Freire Memória e Presença: preservação e democratização do acesso ao patrimônio cultural brasileiro” para ações envolvendo bibliotecas e arquivos, no que tange ao uso de softwares livres. Discorre sobre a metodologia do trabalho, bem como enumera os softwares utilizados nas atividades de digitalização, tratamento de textos, fotos, áudios e vídeos, além de apresentar as novas funcionalidades e customizações da plataforma de código aberto utilizada para disponibilizar ao público todo o acervo. Por fim, apresenta alguns dos desafios encontrados e aponta as perspectivas para o futuro