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The aim of the present study was to validate the dental aesthetic index (DAI) and index of complexity, outcome and need (ICON) based on the opinions of a panel of Brazilian orthodontists. A comparison of these two orthodontic treatment need indices was carried out based on the consensus of a panel of 20 experienced orthodontists. A set of 108 study casts representing the full spectrum of malocclusions was selected. A calibrated examiner scored the casts for both indices. The orthodontists individually rated the casts regarding the degree of orthodontic treatment need. The panel's mean rating of the need for treatment was used as the gold standard for evaluating the validity of the indices. The accuracy of the indices, as reflected in the area under receiver-operating characteristic curves, was high: DAI = 81.83% (95%CI: 71.21-92.44); ICON = 88.75% (95%CI: 78.57-98.92). Although the accuracy of the ICON was higher than that of the DAI, both indices are recommended for determining orthodontic treatment need in Brazil.O objetivo do presente estudo foi validar os índices dental aesthetic index (DAI) e index of complexity, outcome and need (ICON) a partir da opinião de um painel de ortodontistas brasileiros. A comparação desses dois índices de necessidade de tratamento ortodôntico foi feita baseada no consenso de um painel de 20 experientes ortodontistas. Um conjunto de 108 modelos de estudo representando uma grande variedade de tipos de maloclusão foi selecionado. Um examinador calibrado mensurou os modelos para ambos os índices. Os ortodontistas, de forma individual, avaliaram a necessidade de tratamento ortodôntico de cada modelo. O valor médio do painel de ortodontistas em relação à necessidade de tratamento foi utilizado como padrão-ouro para validação dos índices. Os valores de acurácia dos índices, medidos pela curva de característica de operação do receptor, foram altos: DAI = 81,83% (IC95%: 71,21-92,44); ICON = 88,75% (IC95%: 78,57-98,92). Embora a acurácia do ICON tenha sido mais alta do que a do DAI, ambos os índices são recomendados para determinar a necessidade de tratamento ortodôntico no Brasil.

Oral and maxillofacial surgeons are among the frontline healthcare workers and are classified as a high-risk group for COVID-19 infection; however, it has not yet been defined how these professionals were impacted. The aim of this study was to explore the conducts and perceptions of oral and maxillofacial surgeons during the COVID-19 pandemic in Brazil. Nine individuals, mean age 34.8 years, 66.6% men, were included in the study. A semi-structured interview with a qualitative approach was applied to professionals belonging to a messaging application group (WhatsApp). Content analysis was performed in the light of Hellerian theory in its daily theoretical framework for the interpretation of the memories reported by the participants. Four themes were identified. The lack of knowledge about COVID-19 and the fear of being contaminated during care were the main factors responsible for changes in the professionals' work routine. An important point was the collective reflection of the participants about the increase in biosafety barriers, which ensured a greater sense of security. The need for social isolation to contain the virus was also described. As a result, there was a great distance between professionals and their families, which generated high levels of anxiety in the former. Repetitive reports of slowness and reduced attendance directly related to financial loss and aggravated stress were also highlighted. The findings of this study reveal that oral and maxillofacial surgeons had their professional-personal axis affected in terms of daily habits, family life and financial strain, aspects that were responsible for impacting stress and anxiety levels.

Abstract Introduction Convencional resin cements can be used in combination with a total-etch system in a conventional mode or as self-adhesive resin cements. The latter are less technique sensitive and able to bond to dental tissues without previous treatment or adhesive layer and requires only a single step to be applied to dental structures. Objective To compare qualitatively the adhesive interfaces of two self-adhesive resin cements and one conventional resin cement after different tooth surface treatments under scanning electron microscopy. Material and method 42 crowns of bovine incisors were sectioned and flattened exposing enamel (E) or dentine (D) substrate. Subgroups were defined according to conditioning type and time: E1—no treatment, E2—37% phosphoric acid for 15 seconds, E3—37% phosphoric acid for 30 seconds; D1—no treatment, D2—37% phosphoric acid for 5 seconds; D3—11.5% polyacrylic acid for 15 seconds. A resin block was bonded to each substrate using the self-adhesive resin cements RelyX U100 (3M ESPE) and RelyX U200 (3M ESPE). As a reference hybrid layer, six resin blocks were luted with RelyX ARC and Scotchbond Multi-Purpose adhesive system (3M ESPE) (enamel—EA; dentine—DA). After aging for 7 days in a moist environment at 37±1°C, samples were prepared for microscopy analysis. Result and Discussion In the ARC specimens, there was hybrid layer formation in both EA and DA. U100 E1 showed gaps at the adhesive interface, while E2 and E3 showed interaction for both self-adhesive cements. There was superficial interaction with bothU100 and U200 in D1, while in D2 and D3, resin tags were only observed in the case of U100. Conclusion It was concluded that substrate conditioning may enhance the interaction between self-adhesive resin cements and dental tissues, although this is not the case for RelyX U200 and dentine.

Este estudo transversal descreveu a saúde bucal de idosos residentes em instituições de longa permanência de Belo Horizonte, Minas Gerais, Brasil. Uma amostra de 335 idosos acima de 60 anos de idade foi aleatoriamente selecionada. Os dados foram coletados dos registros das instituições, por entrevista e exame clínico da cavidade bucal. Avaliaram-se a higiene bucal, a cárie dentária coronária e radicular e a doença periodontal. Foi observada placa bacteriana em 76% das superfícies dentárias e 57% dos idosos usuários de prótese total superior apresentaram placa em pelo menos uma das superfícies. O CPOD foi de 30,8, com predomínio do componente perdido (94,2%) e 57,1% dos idosos apresentaram experiência de cárie radicular. A maioria dos idosos (78,2%) apresentou como pior condição periodontal sextante nulo e 64,5% dos sextantes válidos apresentaram bolsa periodontal de 4mm a 5mm e 47% perda inserção de 4mm a 5mm (47%). A saúde bucal dos idosos é precária, representada por higiene bucal deficiente, alta experiência de cárie, acentuada perda dentária e presença de bolsa periodontal.This study assessed the oral health of the institutionalized elderly in Belo Horizonte, Minas Gerais State, Brazil. A sample of 335 individuals over 60 years of age was randomly selected. Data were collected through interviews, review of medical records, and clinical examination by a single researcher. Oral health was evaluated in terms of oral hygiene, caries, and periodontal disease. Bacterial plaque was present on 76% of the dental surfaces, and 57% of the elderly using upper dentures presented plaque on at least one of its surfaces. DMF-T index was 30.8, with the missing component representing 94.2%. Missing sextant was the worst periodontal finding in 78.2% of the elderly. Among the valid sextants, there was a higher prevalence of 4 to 5mm periodontal pocket and attachment loss from 4 to 5mm (47%). According to the findings, institutionalized elderly suffer from precarious oral health, with deficient oral hygiene, high caries rate, tooth loss, and periodontal pocket.