Objective To investigate the effects of the COVID-19 pandemic on case volumes and wait-
times for ophthalmic surgery in Ontario, Canada. Design Population-based retrospective …

Isolation and quarantine during the Covid-19 pandemic affected the lifestyle and daily
functioning of the population around the world, leading to social, psychological, and …

Dental ceramic restorations are widely spread nowadays due to their aesthetics and
biocompatibility. In time, the colour and structure of these ceramic materials can be altered …

(1) Background: Thermoplastic materials are not inert and subject to changes in the oral
environment, which affect their surface quality. Color stability and topographic characteristics …

Considering that the processes of PEEK discoloration caused by either intrinsic or extrinsic
factors require elucidation, the aim of this study was to investigate the long-term effect of the …

The development of various dental glass-ceramic materials and the evolution of novel
processing technologies lead to an essential change in the clinical and technical workflow …

The accuracy of newly developed ceramic materials is still being studied. Marginal and
internal adaptation are known factors that have an essential impact on the long term success …

(1) Background: The study was undertaken to evaluate the surface characteristics,
microhardness, and color stability of PEEK materials related to water saturation and in vitro …

(1) Background: Considering that the appearance of a dental material is an important factor
that contributes to the success of prosthetic restorations. The purpose of this study is to …

Color preservation of esthetic dental restorative materials in the oral environment
represents, besides longevity, a concern, and there is still limited knowledge related to the …