Dr. Rajat Sachdeva outlines essential oral health practices during lockdown, emphasizing brushing twice daily, flossing, maintaining a healthy diet, and avoiding sugary drinks. The document also highlights mental health tips such as exercising, staying connected with loved ones, and engaging in hobbies. Additionally, it details COVID-19 precautions taken in dental clinics, including the use of air purifiers, sterilization methods, and disinfection processes.