Comparison of marginal fit between milled and three-dimensional printed polymethylmethacrylate prostheses for single crowns, anterior bridges, and pier abutment bridges: An in vitro study.

Aim: The purpose of this in vitro study was to compare the marginal fit of various three-dimensional (3D) printed and milled polymethylmethacrylate (PMMA) dental prostheses.

Settings And Design: The study was conducted in an in vitro study setting.

Materials And Methods: With a sample size of 45 for each fabrication method, this investigation compared the marginal fit of milled (Group 1) and 3D printed (Group 2) PMMA dental prostheses across different designs.

Predicting emergence of crystals from amorphous precursors with deep learning potentials.

Crystallization of amorphous precursors into metastable crystals plays a fundamental role in the formation of new matter, from geological to biological processes in nature to the synthesis and development of new materials in the laboratory. Reliably predicting the outcome of such a process would enable new research directions in these areas, but has remained beyond the reach of molecular modeling or ab initio methods. Here we show that candidates for the crystallization products of amorphous precursors can be predicted in many inorganic systems by sampling the local structural motifs at the atomistic level using universal deep learning interatomic potentials.

How often do parents administer medications to their children in hospital? A prospective direct observational study.

Parents and carers play a critical role in supporting their children while in hospital. Multiple qualitative studies have explored parental involvement in the care of hospitalised children. Administration of medication to young children can be difficult and cause anxiety and stress for children.

Initiation of Hearing Aids Use and Incident Dementia Among Mid-to-late Life Adults: The Health and Retirement Study 2010-2018.

Background And Objectives: Hearing aids may reduce the risk of dementia among individuals with hearing loss. However, no evidence is available from randomized controlled trials (RCTs) on the effectiveness of hearing aids use in reducing incident dementia. Using target trial emulation, we leveraged an existing longitudinal cohort study to estimate the association between hearing aids initiation and risk of dementia.