General Anesthia & Deep Sedation

General Anesthesia : A  controlled state of unconsciousness accompanied by loss of protective reflexes, including the ability to maintain an airway independently and respond purposefully to physical stimulation or verbal command. In dentistry, it’s typically used for complex procedures or patients with special needs. 

Deep Sedation: A drug-induced depression of consciousness during which patients cannot be easily aroused but respond purposefully following repeated or painful stimulation. The ability to independently maintain ventilatory function may be impaired. Patients may require assistance in maintaining a patent airway, and spontaneous ventilation may be inadequate. 

Both methods are used to ensure patient comfort and safety during more invasive or lengthy dental procedures, but they require specialized training and equipment to administer and monitor.