What Dental Procedures Require Sedation? Here’s What to Expect

crowns dental providers

Dental anxiety is far more common than most people realize. A 2025 study published in the Journal of the American Dental Association found that nearly 73 percent of U.S. adults report some degree of dental fear, including 27 percent who describe it as extreme. Sedation dentistry has become a popular way to help these patients get the care they need, but dentists also use it for practical reasons that have nothing to do with anxiety, from lengthy procedures to strong gag reflexes. Here’s a look at which procedures commonly involve sedation and what each level of sedation actually feels like.

Common Procedures That Involve Sedation

Any patient can request sedation for a routine visit, but a few procedures come with sedation recommended more often, usually because they’re invasive, lengthy, or uncomfortable without it:

The right level of sedation depends on how involved the procedure is and how comfortable you are in the chair. Your dentist will walk through the options with you before deciding what fits best.

The Levels of Sedation Dentistry

Dentistry generally follows the same continuum of sedation used across medicine, from fully awake and mildly relaxed to fully unconscious:

  • Minimal sedation (nitrous oxide): Often called laughing gas, this is an inhaled mix of oxygen and nitrous oxide. You stay fully awake and alert, just more relaxed, and the effects wear off within minutes, so you can drive yourself home. It’s commonly used for fillings, cleanings, and simple extractions.
  • Moderate sedation (oral or IV): An oral sedative pill is typically taken about an hour before your appointment, or a sedative can be delivered through an IV for a faster, more adjustable effect. Either way, you remain conscious and can respond to your dental team, though you may not remember much of the procedure afterward. You’ll need a friend or family member to drive you home.
  • Deep sedation: You’re on the edge of consciousness and won’t respond to much besides repeated or painful stimulation. This level is reserved for more extensive procedures and requires closer monitoring of breathing and vital signs.
  • General anesthesia: You’re fully unconscious and unaware of the procedure. This is typically reserved for complex oral surgery or patients who can’t tolerate treatment any other way, and it requires continuous monitoring by a trained provider.

The American Dental Association notes that the right choice depends on the procedure, your overall health, and your anxiety level, all of which your dentist will factor in before recommending an approach.

Who’s a Good Candidate for Sedation Dentistry?

Sedation isn’t just for people who are nervous about the dentist, though that’s a common reason. It can also help patients who:

  • Have a strong gag reflex that makes routine treatment difficult
  • Need a lengthy or complex procedure completed in fewer visits
  • Have difficulty getting numb with local anesthesia alone
  • Have limited mobility or trouble sitting still for an extended appointment
  • Simply want a calmer, more comfortable overall experience

How to Prepare for Sedation Dentistry

Preparation depends on the level of sedation you and your dentist choose. For nitrous oxide, there’s little to no prep involved, and you can eat normally beforehand. For oral, IV, deep sedation, or general anesthesia, your dentist will typically ask you to avoid eating or drinking for a set number of hours before your appointment and to arrange for someone to drive you home afterward, since the effects can linger well past the procedure itself. Plan to take it easy for the rest of the day, and follow any specific aftercare instructions your dentist provides.

Talk to Your Dentist About What’s Right for You

Whether you need crowns, fillings, a root canal, or more, the team at Loudoun Dental Associates can walk you through your sedation dentistry options and help put your mind at ease. Request an appointment to discuss which approach fits your procedure and comfort level.

Frequently Asked Questions

Will I be awake during sedation dentistry?

It depends on the level. With minimal or moderate sedation, you stay conscious and can respond to your dental team, though you may not remember much afterward. Deep sedation and general anesthesia render you unconscious.

Can I drive myself home after sedation dentistry?

Only after nitrous oxide (laughing gas), since its effects wear off within minutes. Any other level of sedation requires a driver, as the effects can last for several hours.

Do I need to fast before a sedation dentistry appointment?

For oral, IV, deep sedation, or general anesthesia, your dentist will typically ask you to avoid food and drink for a set number of hours beforehand. Nitrous oxide doesn’t usually require fasting.

Is sedation dentistry safe?

Yes, when administered by a trained dental team that monitors your vital signs appropriately for the level of sedation used. Your dentist will review your health history to choose the safest option for you.