RECONSTRUÇÃO COM PRÓTESE BUCOMAXILOFACIAL EM PACIENTES ONCOLÓGICOS: SUA IMPORTÂNCIA NA ODONTOLOGIA

Facial maxillofacial prosthesis (P.B.M.F) is a specialty of dentistry responsible for oral, facial and functional rehabilitation with extraoral and intraoralintraoral prostheses of patients with maxillofacial defects. The shortage of specialized professionals is critical, as during the treatment of a malignant neoplasm, loss of facial structure may occur, where the specialized professional has the possibility of prosthetically rehabilitating the lost part, be it the eyeball, oculopalpebral, auricular, nasal, palate obturator aimed at improving the patient's self-esteem and social reintegration. Contact with the discipline is important for the evolution of the specialty, as well as the interest of undergraduates and students. P.B.M.F plays an important role in the social reintegration of a patient mutilated by oral neoplasia today. The advancement of aesthetic dentistry came with the need to enhance a more beautiful, harmonious and younger appearance of a patient who meets beauty standards. On the other hand, the patient with the loss of part of the face he fought for, with a diagnosis that threatened his life, seeks to become inconspicuous in the crowd. The objective of this work is to carry out a literature review exposing the need for professionals and academics to contact the P.B.M.F. and the types of prostheses used. The methodology was based on data taken from the Scielo, Pubmed and Google Scholar platforms over the last 10 years, with articles found that were mostly case reports. Maxillofacial prosthesis is a branch of dental prosthesis associated with the restoration and/or replacement of stomatognathic and craniofacial structures with prostheses, which may or may not be removed regularly or electively.A prótese bucomaxilofacial (P.B.M.F,) facial é uma especialidade da odontologia responsável pela reabilitação oral, facial e funcional com próteses extraorais e intra-oraisintraorais de pacientes com defeitos maxilofaciais. A escassez de profissionais especializados é crítica, pois durante um tratamento de uma neoplasia maligna pode ocorrer a perda de estrutura da face, onde o profissional especializado tem a possibilidade de reabilitar proteticamente a parte perdida seja ela de globo ocular, oculopalpebral, auricular, nasal, obturadora de palato visando a melhora da auto estima e a reintegração social do paciente. O contato com a disciplina é importante para a evolução da especialidade, assim como interesse de graduandos e discentes. A P.B.M.F tem um papel importante na reintegração social de um paciente mutilado pela neoplasia bucal nos dias de hoje. O avanço da odontologia estética veio com a necessidade de se enaltecer uma aparência mais bela, harmoniosa e mais jovem de um paciente que se enquadra nos padrões de beleza. Em contrapartida, o paciente com perda de parte da face que lutou, com um diagnóstico que ameaçou sua vida, busca se tornar imperceptível no meio da multidão. O objetivo deste trabalho é realizar uma revisão de literatura expondo a necessidade do contato dos profissionais e acadêmicos com a P.B.M.F.  e os tipos de próteses usadas. A metodologia se baseou em dados retirados das plataformas Scielo, Pubmed e Google Acadêmico dos últimos 10 anos, sendo encontrados artigos que na sua maioria eram relatos de caso. A prótese maxilofacial é um ramo da prótese dentária associada à restauração e/ou substituição de estruturas estomatognáticas e craniofaciais por próteses, que podem ou não ser removidas de forma regular ou eletiva

A new instrument for root canal system finishing after chemomechanical preparation: XP-Endo Finisher

Objective: the objective of this paper is to present a literature review on XP-endo Finisher, addressing the results of studies that evaluated this new endodontic instrument. Material and Methods: a search was undertaken in PubMed and Bireme databases between 2015 (when the instrument was launched to the market) and 2017 using the following descriptors: XP-endo Finisher. Results: eighteen papers were retrieved and divided into categories according to the type of evaluation: Removal of calcium hydroxide paste; Removal of triple antibiotic paste; Removal of filling material; Extrusion of sodium hypochlorite during instrumentation; Extrusion of dentin debris during instrumentation; Antimicrobial and antibiofilm action; and removal of smear layer and debris. Conclusion: according to the papers reviewed in this study, it may be concluded that XP-endo Finisher may have a positive impact on the endodontic treatment. This instrument showed promising results for intracanal medication removal; filling material removal during endodontic retreatment; smear layer and debris removal; enhance of the antimicrobial action of irrigants; and improvement of biofilm removal

Characterisation of microbial attack on archaeological bone

As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora