Do you have a dental emergency in Sunnyvale? A dental emergency can happen to anyone at any time, some dental emergencies can wait for treatment, and others require immediate attention. Dr. Bhawna Gupta is a 24-hour emergency dentist available to help you in Sunnyvale. Our urgent dental care is considered to be among the best emergency dental offices in Sunnyvale and the nearby areas for the treatment of adults, children, and family dental emergencies.