A COVID-19 na América Latina e suas repercussões para a odontologia

[Extract]. Diante do novo coronavírus, se observa pouca ou nenhuma discussão sobre a saúde bucal em tempos de COVID-19. Entre os profissionais que mais se expõem aos aerossóis, principal rota de transmissão do vírus, estão o dentista e sua equipe. Além disso, o dentista está, invariavelmente, em contato com a saliva, responsável por boa parte das infecções. Devido ao alto risco de exposição ao coronavírus pelos dentistas, é urgente que se estabeleçam medidas seguras de trabalho, considerando a viabilidade dos sistemas de saúde e a preservação da saúde de pacientes e profissionais. Levando em conta esses aspectos, e cumprindo a missão de dar visibilidade às ações de saúde pública e de saúde bucal em países latinos, os pesquisadores do Observatório Iberoamericano de Políticas Públicas em Saúde Bucal organizaram em seu site um espaço todo dedicado ao coronavírus (https://sites.usp.br/iberoamericanoralhealth/). No site, disponível nos idiomas inglês, português, espanhol e francês, o leitor tem acesso a recomendações informadas pelas melhores evidências, compiladas pelo grupo de pesquisadores, por formuladores de políticas e por outros stakeholders, para orientar o funcionamento dos serviços de odontologia durante os momentos mais agudos da pandemia. As informações sobre as ações governamentais que estão sendo realizados são organizadas por país, destacando-se as características específicas de como estão funcionando as quarentenas e as restrições de circulação de pessoas. Juntamente com protocolos de atendimento odontológico e boletins epidemiológicos, todo o material pode ser acessado de forma rápida, intuitiva e organizada.

Evaluation of use of acrylic resin-based surgical guide in the function and quality of life provided by mandibular prostheses with microvascular free fibula flap: A four-year, randomized, controlled trial.

STATEMENT OF PROBLEM: The correct positioning of the microvascular-free fibula flap (MFFF) is essential for satisfactory mandibular reconstruction. However, the effect of acrylic resin-based surgical guides on prosthetic rehabilitations has not yet been properly investigated. PURPOSE: The purpose of this randomized clinical trial was to evaluate whether intraoral and extraoral acrylic resin-based surgical guides improve anatomic, functional, esthetic, and quality of life (QoL) results for dental prosthetic rehabilitation with MFFF. MATERIAL AND METHODS: Participants subjected to mandibular reconstruction with MFFF were selected and randomly distributed into 2 groups, control (Co; using conventional surgery) and acrylic resin-based surgical guides (Sg). Functional parameters related to prosthetic rehabilitation and QoL were evaluated by interviews and an oral health impact profile (OHIP)-14 questionnaire. Functional parameters and questionnaire scores were subjected to statistical analysis: the likelihood ratio and the Fisher exact and Mann-Whitney U tests (α=.05). RESULTS: Of 40 participants, 18 were rehabilitated, 10 with tooth-tissue-supported partial removable dentures and 8 with implant prostheses. In Sg, the study measured an enhancement in functional parameters and revealed a significant improvement in QoL (P=.020). CONCLUSIONS: The guides proposed directly improved mandibular reconstruction. Functional aspects may be improved by allowing good intermaxillary relationships and posterior dental rehabilitation. Functional success is directly dependent on soft tissue status and the quality of its reconstruction. Soft tissue evaluation is important before dental rehabilitation.

New uses for rehabilitation protocol for oral sinus communications in ARONJ patients.

This report presents a new use for rehabilitation protocol for oral sinus communications in patients with antiresorptive agent-induced osteonecrosis of the jaw. The treatment plan consisted of constructing an atraumatic complete denture with rounded edges, made with nontoxic resin, to prevent any injury to the mucosa and recurrence of the disease. The patient was followed up for 4 years, without any complications, and was socially reintegrated by resuming the normal life he experienced before tooth loss.

[Popularization of oral self-examination: an example of non formal education--Part II]. / Popularização do autoexame da boca: um exemplo de educação não formal--Parte II.

One of the largest challenges of the universities, especially the public ones, is to transpose the scientific knowledge produced into their walls for the general population. The non-formal education is an important tool, and yet very little used by researchers and professors to approximate the scientific knowledge. The oral cancer reaches more than 11.000 Brazilians a year. In spite of the high incidence, this pathology is still little known by the general population and part of the medical and dental class. Basing on the epidemic data in researches and scientific papers, the oral cancer was the elect theme for the action in education and communication of the first national campaign with no government character of prevention in oral cancer, being a great example of as that can be made. This paper intends to describe the methodology used in communication and the results obtained in this successful experience.

Photoelastic stress analysis surrounding implant-supported prosthesis and alveolar ridge on mandibular overdentures.

The purpose of this research was to evaluate the maximum stress around osseointegrated implants and alveolar ridge, in a mandible with left partial resection through a photoelastic mandibular model. The first group consisted of two implants: traditional model (T), implants placed in the position of both canines; fulcrum model (F), implants placed in the position of left canine CL and right lateral incisor LiR. Both models linked through a bar and clips. The second group was consisted of three implants, with implants placed in the position of both canines (CR and CL) and the right lateral incisor (LiR), which composed four groups: (1) model with 3 "O" rings, (2) model 2 ERAs, bar with clips, (3) model 2 ERAs bar without clips; (4) model "O" ring bar and ERA. An axial and an oblique load of 6.8 kgf was applied on a overdenture at the 1st Pm, 2nd Pm, and 1st M. Results showed that the area around the left canine (CL) was practically free of stress; the left lateral incisor (LiL) developed only small tensions, and low stress in all the other cases; the right canine tooth suffered the largest concentrations of stress, mainly with the ERA retention mechanism.