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Probiotics are dietary supplements containing potentially beneficial bacteria or some yeasts. They help in stimulating health promoting flora and also suppressing pathogens which cause and spread diseases. A balanced oral microbial environment is essential for the promotion of health & prevention of diseases. Probiotic technology represents a breakthrough approach to maintain oral health by using natural beneficial bacteria, commonly found in oral cavity of healthy individuals, to provide a natural defense against those bacteria which are thought to be harmful to structures of oral cavity. The aim of this review is to understand the mechanism of action of probiotic bacteria in the oral cavity and summarize observed effects of probiotics as well as their varied applications in the field of dentistry.

Background: Needle Stick Injuries (NSIs) are defined as accidental skin penetrating injuries caused by needles. It is the single greatest occupational hazard to a medical personnel. In developing countries, needle stick injury is associated with the highest global prevalence of HIV, Hepatitis B, and Hepatitis C. Aim & Objectives: To estimate the prevalence of needle stick injuries, its associated risk factors and assess the awareness regarding needle stick injuries among nursing staff. Material & Methods: A cross-sectional study was conducted among nursing staff who were working at a tertiary care hospital in Northern India during June 2019 to November 2019. The study commenced after taking prior approval from institutional ethics committee. A census method was used to include the participants. Results: Around 66.7% of the nursing staff was exposed to NSIs during their working hours at the hospital. There was significant association of needle stick injuries with place of working and education of nursing staff in multivariate binary logistic regression. About 26% of the nurses were unaware that recapping should be done or not for used needle, and 35% of staff nurses recapped the needle after the use. Conclusion: Needle stick injuries can be prevented by continued education, effective training, providing better safety devices, a positive work environment.

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Background: Nurses are the most vital part of the health system. Having adequate knowledge, awareness and desired clinical skills among them can decrease the risk of infection or complications, can shorten the stay of patients in hospital, decrease the morbidity and mortality of patients and decrease the disease burden.Material & Methods- Nursing staff from the wards of a private tertiary care hospital were interviewed for knowledge and observed for skill assessment. Aim & Objective: To assess the knowledge, skills and practices of nursing staff working in a tertiary care hospital. Results: Knowledge of nurses is good regarding routine investigations, universal precautions, work ethics but poor in pharmacovigilance. Nurses are found to be good having skills in patient care, clinical skills but are poor in practice of biomedical waste management and vital monitoring. Nurses are having good communication with patient &doctors but response time on patients’ call is more.Conclusion: Retraining of nursing staff at regular intervals to upgrade their knowledge regarding universal precautions, work ethics, bio medical waste management and improve upon clinical skills should be made mandatory in a hospital setting.