Objective This living systematic review aims to provide a timely, rigorous and continuously updated summary of the evidence available on the role of pulmonary rehabilitation in the treatment of patients with COVID-19. Design This is the protocol of a living systematic review. Data sources We will conduct searches in the L·OVE (Living OVerview of Evidence) platform for COVID-19, a system that maps PICO questions to a repository maintained through regular searches in electronic databases, preprint servers, trial registries and other resources relevant to COVID-19. No date or language restrictions will be applied. Eligibility criteria for selecting studies and methods We adapted an already published common protocol for multiple parallel systematic reviews to the specificities of this question. We will include randomized trials evaluating the effect of pulmonary rehabilitation as monotherapy or in combination with other interventions-versus sham or no treatment in patients with COVID-19. Two reviewers will independently screen each study for eligibility, extract data, and assess the risk of bias. We will pool the results using meta-analysis and will apply the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system to assess the certainty of the evidence for each outcome. Ethics and dissemination No ethics approval is considered necessary. The results of this review will be widely disseminated via peer-reviewed publications, social networks and traditional media.

Objective The objective of this systematic review is to assess the effectiveness and safety of Hyaluronic Acid (HA) on tissue and bone regeneration after tooth extraction. Data Sources We will conduct a comprehensive search in Epistemonikos, PubMed/Medline, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), LILACS, the International Clinical Trials Registry Platform (ICTRP), ClinicalTrials.gov, US National Institutes of Health (NIH) and grey literature, to identify all relevant randomized controlled trials regardless of language or publication status (published, unpublished, in press and in progress). Eligibility Criteria for Selecting Studies and Methods We will include randomized trials evaluating the effect of HA on tissue and bone regeneration after tooth extraction. Two reviewers will independently screen each study for eligibility, data extraction, and assess the risk of bias. We will pool the results using meta-analysis and will apply the GRADE system to assess the certainty of the evidence for each outcome. Ethics and Dissemination No ethics approval is considered necessary. The results of this review will be disseminated via peer-reviewed publications, social networks, and traditional media. PROSPERO Registration ID CRD42020150285

Objective: The objective of this systematic review is to assess the impact of periodontal therapy on disease activity of patients with Rheumatoid Arthritis Data Sources: We will conduct a comprehensive search in PubMed/Medline, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), Lilacs, the International Clinical Trials Registry Platform (ICTRP), ClinicalTrials.gov, US National Institutes of Health (NIH) and grey literature, to identify all relevant randomized controlled trials regardless of language or publication status (published, unpublished, in press and in progress). Elegibility Criteria for Selecting Studies and Methods: We will include randomised trials evaluating the effect of periodontal therapy on disease activity of rheumatoid arthtritis. Two reviewers will independently screen each study for eligibility, data extraction, and assess the risk of bias. We will pool the results using meta-analysis and will apply the GRADE system to assess the certainty of the evidence for each outcome. Ethics and Dissemination: No ethics approval is considered necessary. The results of this review will be disseminated via peer-reviewed publications, social networks and traditional media. PROSPERO Registration ID: CRD42020150286.

Objective: The objective of this systematic review is to assess the effectiveness and safety of platelet-rich fibrin (PRF) in third molar surgery. Data Sources: A comprehensive search strategy is meant to be used in an attempt to identify all relevant randomized controlled trials (RCTs), ongoing investigation reported in specialty congresses and trials regardless of language or publication status (published, unpublished, in press and in progress). Searches will be conducted in the Cochrane Central Register of Controlled Trials (CENTRAL), PUBMED, Embase, Lilacs, the International Clinical Trials Registry Platform (ICTRP), ClinicalTrials.gov , US National Institutes of Health (NIH), grey literature and in specialized congresses and conferences. Eligibility Criteria: We will include randomized trials evaluating the effect of PRF on wound healing after third molar surgery. Two reviewers will independently screen each study for eligibility, data extraction and risk of bias assessment using Cochrane “risk of bias” tool. We will pool the results using meta-analysis and will apply the GRADE system to assess the certainty of the evidence for each outcome. Ethics and Dissemination: As researchers will not access information that could lead to the identification of an individual participant, obtaining ethical approval was waived.

Correlación entre los hallazgos de la biopsia intraoperatoria y el estudio histopatológico definitivo en el manejo quirúrgico de los queratoquistes / Correlation between histopathological findings in intraoperative frozen section biopsy and postoperative biopsy in surgical management of keratocyst. j.maxilo 2021. doi: 10.20986/recom.2021.1304/2021.Este es un archivo PDF de un manuscrito inédito que ha sido aceptado para su publicación en la Revista Española de Cirugía Oral y Maxilofacial. Como un servicio a nuestros clientes estamos proporcionando esta primera versión del manuscrito en estado de prepublicación. El manuscrito será sometido a la corrección de estilo final, composición y revisión de la prueba resultante antes de que se publique en su forma final. Tenga en cuenta que durante el proceso de producción se pueden dar errores, lo que podría afectar el contenido final. El copyright y todos los derechos legales que se aplican al artículo pertenecen a la Revista Española de Cirugía Oral y Maxilofacial.