General Dentistry

Statement of problem Evidence relating to the choice of materials for single implant-supported crowns is sparse. Purpose The purpose of this systematic review and meta-analysis was to assess articles that compared the clinical performance of ceramic and metal-ceramic (MC) implant-supported single crowns with regard to prosthesis failure, complication rate, and patient satisfaction. A comprehensive search of databases (PubMed/MEDLINE, Scopus, and Cochrane Library) was performed. The last search was conducted in December 2019. Randomized clinical trials comparing ceramic and MC implant-supported single crowns with at least a 12-month follow-up were included, all of which were published in English. The pooled effects were presented as both a risk difference (RD) and mean difference according to the type of data with 95% confidence intervals (CIs). Seven randomized clinical trials fulfilled the eligibility criteria and were included in the meta-analysis. The pooled data did not show any statistically significant differences concerning prosthesis failure (RD: 0.000, 95% CI: -0.05 to 0.06), marginal bone loss (mean difference [MD]: -0.02, 95% CI: -0.75 to 0.35), mechanical complications (RD: -0.06, 95% CI: -0.18 to 0.07), biological complications (RD: 0.02, 95% CI: -0.07 to 0.11), ABStrACt Background Intraoral soft tissue lipomas are relatively uncommon mesenchymal neoplasms. Few papers have been published comparing the clinicopathological features of these tumors in different populations. The aim of the present study was to analyze the clinicopathological features from intraoral soft tissue lipomas diagnosed in a Brazilian population. All cases diagnosed as intraoral soft tissue lipomas in an Oral Pathology laboratory from 2005 to 2019 were retrieved and descriptively analyzed; statistical analysis was performed for comparison of the clinical and demographic parameters. ABStrACt Advances in medical device technology have been dramatic in recent years resulting in both an increased number of medical devices and an increase in the invasiveness and critical function which devices perform. Two new regulations entered into force in Europe in May 2017, the Medical Device Regulation (MDR) and the In Vitro Diagnostic Device Regulation (IVDR). These regulations will replace the current directives over the coming years. These regulations, for the first time introduce requirements relating to registries. ABStrACt Background The COVID-19 pandemic has placed increased demands on clinical staff in primary dental care due to a variety of uncertainties. Current reports on staff responses have tended to be brief enquiries without some theoretical explanation supported by developed measurement systems. Aim To investigate features of health and well-being as an outcome of the uncertainties surrounding COVID-19 for dentists and dental health professionals in primary dental care and for those in training. In addition, the study examined the well-being indices with reference to normative values. Finally a theoretical model was explored to explain depressive symptoms and investigate its generalisability across dentists and dental health professionals in primary dental care and those in postgraduate