Are physical and mechanical properties of 3D resins dependent on the manufacturing method?

This research analyzed the effect of the manufacturing method on the flexural strength and color stability of 3D-printed resins used for producing indirect restorations. For this, two dental restorative biocompatible resin materials, OnX (OnX, SprintRay) and CB (Crown and Bridge, Dentca), were divided into 2 groups according with manufacturing method (printed with a Pro95 3D printer - SprintRay; and not printed, with samples obtained with the fluid resin being poured on PVS molds for further light activation in the post-curing process), and subdivided into 2 groups according to the post-curing method: VG (Valo Grand, Ultradent Products) for 120 s and PC (Procure 2, SprintRay). Bar-shaped samples were used to evaluate the flexural strength 24 h after storage in distilled water at 37 °C using a universal testing machine.

Employment and Migration Patterns of Recent Micrographic Surgery and Dermatologic Oncology Fellowship Graduates.

Background: There is currently an uneven distribution of the Mohs surgery workforce, with a dearth in nonurban areas. The relationship between training and employment locations of Mohs surgeons has not been studied.

Objective: To analyze the employment location of recent micrographic surgery and dermatologic oncology (MSDO) graduates in reference to residency and fellowship locations.

Physical Medicine and Rehabilitation: Trends in Graduate Medical Education and Subspecialization Amid Changing Demographics.

With an aging and growing US population, American healthcare faces an impending physician shortage. This is important for the field of physical medicine and rehabilitation, because physiatrists' skills in managing chronic conditions and functional outcomes are especially relevant to an older population. The present study was designed to better understand the future physical medicine and rehabilitation workforce, by recording and analyzing the quantities of Accreditation Council of Graduate Medical Education-accredited physical medicine and rehabilitation graduate medical education programs and positions between 2001-2002 and 2017-2018.