Evaluation of the Awareness and Anxiety Levels and Oral Hygiene Habits of University Students During the Coronavirus Disease 2019 (COVID-19) Pandemic.

Aim: The aim of this study was to evaluate the awareness and anxiety levels and oral hygiene habits of university students during the coronavirus disease 2019 (COVID-19) pandemic.

Materials And Methods: A total number of 560 university students were included at different education levels. Sociodemographic data regarding age, gender, current school level, family income, and smoking frequency status were obtained.

The Effects of a Novel Nanohydroxyapatite Gel and Er: YAG Laser Treatment on Dentin Hypersensitivity.

Purpose: This study evaluates the effects of a novel nanohydroxyapatite gel and Er: YAG laser on the surface roughness, surface morphology, and elemental content after dentin hypersensitivity treatments.

Methods: Dentin discs (2 × 3 × 3 mm) were prepared from 75 human molars. Out of 75 human molars, 50 were used to evaluate surface roughness and randomly divided into five groups: Group ID (intact dentin), Group DD (demineralized dentin), Group BF (fluoride varnish/Bifluorid 10), Group Lsr (Er: YAG laser-50 mJ, 0.