Published on Jun 2, 2025 | 8 minute read
Let’s be honest—no one throws a party when it’s time for a dental appointment. And for some people, even the idea of stepping into a dentist’s office can trigger sweaty palms, racing thoughts, and that telltale knot in the stomach. Sound familiar?
If dental anxiety is more than just nerves for you, you're not alone. But you do have options—and one of the most trusted, gentle ones is nitrous oxide sedation.
Commonly nicknamed “laughing gas,” nitrous oxide is the unsung hero of stress-free dental care. At Marlton Modern Dentistry in Marlton, NJ, patients of all ages use it to stay calm, comfortable, and in control—without the groggy aftermath or dramatic side effects.
Let’s unpack how it works, why it’s safe, and who it’s perfect for.
Nitrous oxide sedation is a mild inhaled sedative that helps patients feel relaxed during dental treatment. It’s administered through a small mask placed over your nose—just breathe in normally, and within minutes, you’ll feel lighter, calmer, and… well, kind of floaty.
It won’t knock you out. You stay awake, can respond to questions, and are fully aware of what’s happening—you just don’t feel stressed about it.
Even better? Once your appointment ends, the effects wear off almost immediately. A few deep breaths of pure oxygen, and you’re clear-headed, safe to drive home, and probably wondering why you ever felt nervous in the first place.
This type of sedation is ideal for people who experience:
It’s also great for kids, teens, and adults alike. Because it’s so gentle and fast-acting, nitrous oxide is often the go-to option for people who just need help taking the edge off.
Curious about what to expect with nitrous oxide sedation at Marlton Modern Dentistry? Here's the play-by-play.
Once you're comfortably settled in the chair, a small nasal mask is placed over your nose. You'll be breathing in a mixture of nitrous oxide and oxygen—usually about 30% nitrous and 70% oxygen, though the ratio can be adjusted to your comfort.
Within 2 to 3 minutes, you'll begin to feel the effects—think light tingling in your fingers and toes, a feeling of warmth, and a mellow, floaty calm. Some people even get the giggles (hence the name "laughing gas").
While you’re under sedation, your dental treatment begins. You’ll still be aware and able to communicate, but anxiety and discomfort fade into the background.
Once the treatment is over, the gas is turned off and you're given 100% oxygen to breathe for a few minutes. The effects wear off quickly—so quickly, in fact, that most patients can drive themselves home without issue.
Absolutely. Nitrous oxide is one of the safest sedation methods in dentistry and has been used for over 150 years. It’s widely recommended by the American Dental Association and approved by the FDA.
Here’s why it earns its reputation for safety:
For most healthy patients, nitrous oxide is incredibly well tolerated. However, it's not recommended for people in their first trimester of pregnancy, those with certain respiratory conditions, or people with a vitamin B12 deficiency (rare, but relevant).
If you have any medical conditions or concerns, the team at Marlton Modern Dentistry will always review your health history and make sure sedation is a safe choice for you.
Let’s talk about what nitrous oxide actually does for patients—because it’s more than just a nice-to-have.
Whether you’re having a filling, a cleaning, or a crown placed, nitrous oxide keeps anxiety from taking over. You’ll feel more relaxed and less panicked, even if you've had bad dental experiences in the past.
Some patients have an exaggerated gag reflex that can make even a simple cleaning feel impossible. Nitrous oxide helps reduce this reflex, making procedures smoother and faster.
When patients feel calm and comfortable, dentists can work more efficiently. That means fewer appointments, fewer interruptions, and less overall chair time for you.
Unlike oral sedation or IV sedation, nitrous oxide wears off fast. There’s no need for someone to drive you home, no grogginess for the rest of the day, and no downtime needed.
Professional sources: American Dental Association (ADA), Journal of the American Dental Association (JADA), and the National Institutes of Health (NIH) confirm the efficacy and safety of nitrous oxide sedation when used under professional care.
At Marlton Modern Dentistry, nitrous oxide sedation isn’t used in isolation. It’s part of a patient-first approach that makes your experience more comfortable from start to finish.
You might not need sedation for every visit—but knowing it's there? That’s empowering.
Many patients start with nitrous oxide for one procedure, realize how manageable the experience becomes, and build enough confidence to return without fear next time. It’s like training wheels for your dental anxiety.
One of the best things about nitrous oxide sedation? There’s very little prep or post-care required. Still, here are a few simple things to keep in mind:
That’s totally okay. Dental fear isn’t something to be ashamed of. What matters is that you take the first step—and having sedation options like nitrous oxide can make that step feel less overwhelming.
Dr. Rockwell and the team at Marlton Modern Dentistry understand the mental side of dentistry just as much as the physical. You’ll be heard, respected, and never pressured into treatment without comfort top of mind.
Dental visits shouldn’t be scary—or something you put off until it hurts. Nitrous oxide sedation offers a calm, comfortable solution that helps you get the care you need without the fear.
If you think nitrous oxide sedation could help you feel more confident about dental treatment, call Marlton Modern Dentistry at 856-702-0777 and schedule your consultation today.
Whether you're due for a routine checkup or considering a smile transformation, we're here to help. Dr. Rockwell and our friendly team provide personalized care for patients of all ages in a comfortable setting with TVs, headphones, and warm blankets for your comfort. Contact us today to schedule your visit.