Cal Bus & Prof Code 1627.5(b)
When an emergency declaration is in effect, a licensed dentist who, in good faith, voluntarily, and without compensation, provides emergency medical care consistent with their dental education will not be held legally responsible for acting or failing to act. They can be held legally responsible if acting with extreme carelessness or intent to cause harm.
Liability for emergency care
(b) A person licensed under this chapter who voluntarily and without compensation or expectation of compensation, and consistent with the dental education and emergency training that he or she has received, provides emergency medical care to a person during a state of emergency declared pursuant to a proclamation issued pursuant to Section 8588, 8625, or 8630 of the Government Code or a declaration of health emergency issued pursuant to Section 101080 of the Health and Safety Code shall not be liable in negligence for any personal injury, wrongful death, or property damage caused by the licensee's good faith but negligent act or omission. This subdivision shall not provide immunity for acts or omissions of gross negligence or willful misconduct. This subdivision does not limit any immunity provided under subdivision (a).