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The current pandemic has raised awareness of aerosol dispersion in dental offices. This scoping review was conducted to assess the amount and spread of aerosol generated by dental procedures.This scoping review followed the PRISMA-ScR protocol and was conducted by searching multiple databases adopting a core search structure for each database. Detailed eligibility criteria were applied. The authors placed no restrictions on study design, year of publication, and study location. The literature search was updated on September 15, 2021.A total of 51 papers were included in this scoping review. The risk of bias assessment was not conducted as per guidelines. The majority of studies found microorganisms, bloodstains, splatters of aerosol, and particles in the air part of the search strategy. Publication dates ranged from 1969 to 2021. Data came from different dental settings locations. Several factors were identified that have an effect on the amount and spread of the aerosol and spatter.Although it is clear that the microbial contamination occurred mainly during aerosol-generating dental procedures, our understanding of the contamination level, spread, and half-life are limited.

Introduction: A clinical practice based on scientific evidence should be performed, among other factors, on the prior search for knowledge supported by dental science. Objective: The objective of this study is to present a research protocol proposal, download and translation of scientific articles. Materials and methods: A step-by-step detailed scientific research protocol was carried out in two of the main electronic databases, illustrated by hypothetical examples of three clinical questions. Results: The access and the development of scientific literature search skills should reach the knowledge of dental professionals with clarity and objectivity. Thus, the clinical experience can be associated with scientific evidence and patient preference in decision-making. Conclusion: The improvement of clinical practice must offer and deliver quality in treatment outcomes through evidence-based dentistry. Introdução: a prática clínica baseada em evidência científica deve ser pautada, entre outros fatores, na busca prévia de conhecimento embasado pela ciência odontológica. Objetivo: o objetivo deste trabalho é apresentar uma proposta de protocolo de pesquisa, download e tradução de artigos científicos. Materiais e métodos: foi realizado um protocolo de pesquisa científica com o passo-a-passo detalhado em duas das principais bases de dados eletrônicas, ilustrado por meio de exemplos hipotéticos de três dúvidas clínicas. Resultados: o acesso e o desenvolvimento de habilidades de busca pela literatura científica devem chegar ao conhecimento dos profissionais da área odontológica com clareza e objetividade. Assim, a experiência clínica pode ser associada à evidência científica e à preferência do paciente na tomada de decisões. Conclusão: o aprimoramento da prática clínica deve oferecer e entregar qualidade nos resultados de tratamentos por meio da Odontologia baseada em evidências.

Objective The aim of this systematic review was to elucidate the role of orthodontic retainers on the stability of compensatory orthodontic treatment in patients with unilateral cleft lip and palate. Methods Five electronic databases (PubMed, Scopus, Web of Science, LILACS, and LIVIVO) and the grey literature (OpenGrey and Google Scholar) were investigated, according to the population, exposure, comparator, outcomes and Study design eligibility criterion. The risk of bias assessment was determined based on the Risk of Bias In Nonrandomized Studies of Exposure (ROBINS-E) and the level of evidence with the GRADE tool. Results Three studies were included: two presented moderate risk of bias and one high. A moderate level of evidence revealed a mean value of 0.6 mm of intercanine relapse distance, and great variability between the data, regardless of the use or type of retention or rehabilitation. Relapse in the posterior region showed clinical significance, from −1 to −1.7 mm, especially in individuals who did not use retention, except in patients with symmetrical arches with Hawley retainer, where this value varies from −0.2 ± 0.63 mm. Conclusions Orthodontic retainers do not seem essential to prevent relapse at anterior maxillary dimensions after compensatory orthodontic treatment in patients with unilateral cleft lip and palate. Relapse in the posterior region can achieve greater clinical significance, which highlights the need for prolonged use of Hawley retainers and periodic evaluation of the stability of treatment results. Prospective studies with a longer follow-up can improve the certainty of the evidence.

Dental wear analysis through the use of an intraoral scanner is a reality of modern dentistry. This study aimed to investigate the reliability of qualitative tooth wear evaluation through three-dimensional images captured with an intraoral scanner and compared to clinical and photographic examinations. Eighteen adult volunteers of both genders (18 to 55 years old) were submitted to clinical exams, intraoral photographs and intraoral scanning protocol using an optical scanner (TRIOS® Pod, 3Shape, Copenhagen, Denmark). Occlusal tooth wear, from second to second premolars, was measured by two evaluators and reevaluated after 30 days, according to a slight modification of the method described by Mockers et al. Weighted Kappa was used to measure intra and inter-examiner agreement. The Friedman test was used to verify the differences among methods. Random and systematic errors were assessed using Bland-Altman plots. All statistical analysis was performed with p

Objectives This systematic review aimed to assess whether hard or soft foods interfere with the pattern of occlusal changes in nonhuman mammals. Design The electronic databases PubMed, Scopus, Web of Science, Cochrane Library, LILACS, OpenGrey and Google Scholar were examined. Only studies investigating the effects of dietary consistency on the occlusal characteristics in animal models were included. The risk of bias was performed based on the SYRCLE’s tool, which assigned a low, high or uncertain assessment to each domain. Results After the removal of duplicates, a total of 8,977 articles remained. From those, 19 studies met the eligibility criteria. Although a great methodological heterogeneity was observed, the results of the included studies as a whole points to homogeneity in the findings obtained on rats, pigs, and monkeys. The increase in the masticatory load was associated with larger dental arch dimensions. Dental wear and dento-alveolar changes were more evident with an increase of diet consistency. Baseline characteristics, blinding of outcome assessors, other sources of bias, incomplete outcome data, and selective outcome reporting were best assessed, denoting a lower risk of bias. In sequence generation and allocation concealment, insufficient details were provided to improve the classification. Random housing and outcome assessment and blinding of researchers were poorly evaluated. Conclusion Considering the limited evidence obtained from these findings, it seems that food consistency may interfere with the development of occlusal patterns and arch dimensions among growing animals. The findings suggest an environmental effect, even if minimal, on the occlusal characteristics.

Objectives: To identify the scientific evidence that demonstrates which of the transverse maxillary treatments has the least effect on periodontal tissues. Materials and Methods: PubMed (MEDLINE), Cochrane Library, Scopus, Web of Science, Virtual Health Library, Google Scholar, and OpenGrey were searched without restrictions. A hand search was also carried out in the reference lists of the articles selected. The related articles tool in the PubMed database was checked for each article included. Risk of bias assessment was performed using Cochrane Collaboration's Risk of Bias tool for randomized clinical trials and the ROBINS-I tool for nonrandomized studies of interventions. The GRADE tool was used to assess the quality of the evidence. Results: After examination of the full texts, three studies were finally included. Two studies used a Haas expander with different protocols, and one study used a Haas expander compared with a quad-helix appliance. These studies evaluated periodontal parameters and periodontal indices by clinical examination with a millimeter probe, and one study examined computed tomography images. After quality assessment, two studies were considered as having a “low” risk of bias. One study was scored as having a moderate risk of bias. The evidence was graded as moderate quality for alveolar bone level, tooth displacement, and inclination and very low for all other outcomes. Conclusions: There were no significant differences to enable a sound conclusion about which type of maxillary expansion has the least periodontal side effects.