Prevalence of white spot lesions and risk factors associated with the COVID-19 pandemic.

Background: The objective of this study was to investigate the impact of the COVID-19 pandemic on the prevalence and persistence of white spot lesions (WSLs) among patients treated with traditional braces.

Methods: A group of 434 consecutively finished cases who had pretreatment and post-treatment digital photographs taken were included in this study. Each set of photographs was evaluated by two investigators to determine prepandemic and postlockdown WSLs, in addition to changes in oral hygiene (OH) and other risk factors.

A Snapshot of the Prevalence of Molar Incisor Hypomineralization and Fluorosis in Pittsburgh, Pennsylvania, USA.

The prevalence of molar incisor hypomineralization in the United States is unknown. The condition is defined via the presence of demarcated opacities of varying color, porous enamel, advanced susceptibility or progression of dental caries, and sensitivity. The purpose of this study was to establish the prevalence of molar incisor hypomineralization (MIH) in Pittsburgh, Pa.