Nitrous Oxide (Laughing Gas) in Arlington, TX
A safe, fast-acting, fast-clearing inhaled sedation for mild-to-moderate dental anxiety. Breathe it in for relaxation; breathe pure oxygen at the end and you're back to normal in 5 minutes.

The simplest, mildest sedation option.
Nitrous oxide - laughing gas - is mixed with oxygen and inhaled through a small nose mask during your procedure. It produces light euphoria, reduces anxiety, and slightly dulls discomfort, while keeping you fully awake and aware.
It works fast, wears off fast, and has no lingering effects - most patients drive themselves home afterward. Safe for kids and adults, with decades of clinical use behind it.

Why patients choose Laughing Gas.
Mild, safe anxiety relief
Takes the edge off without making you groggy. Great for patients with mild dental anxiety or sensitive gag reflex.
Fast on, fast off
Effects within 5 minutes of breathing in; clear within 5 minutes after switching to pure oxygen. No lingering grogginess.
You can drive home
Unlike oral or IV sedation, nitrous wears off so quickly you can drive yourself home and return to work.
Safe for kids
Well-studied in pediatric dentistry - a great option for anxious children before more involved sedation is considered.
What Is Laughing Gas (Nitrous Oxide)?
Nitrous oxide — “laughing gas” — is a safe, mild sedative inhaled through a nose mask during your appointment. It takes the edge off anxiety, kicks in within minutes, and wears off completely by the time you leave.
Our Laughing Gas (Nitrous Oxide) Services
In-Office Administration
Nitrous oxide mixed with oxygen and delivered through a small comfortable nose mask.
Customized Dosing
We adjust the level throughout the visit based on how you’re feeling.
Recovery in Minutes
Pure oxygen at the end clears the gas; you can drive yourself home.
Combined With Local Anesthesia
Nitrous handles anxiety; local handles pain.
Who Is a Good Candidate for Laughing Gas (Nitrous Oxide)?
- Patients with mild to moderate dental anxiety
- Children who need extra help relaxing
- Patients with a strong gag reflex
- Anyone who wants a more comfortable, stress-free visit
Benefits of Laughing Gas (Nitrous Oxide)
- Fast acting — effective in 3–5 minutes
- Wears off completely by the time you leave — you can drive yourself home
- Safe for kids as young as 4–5 years old
- Inexpensive compared to other sedation options
Why Choose Madison Square Dental for Laughing Gas (Nitrous Oxide)?
At Madison Square Dental, we combine 40+ years of Arlington experience with modern technique and patient-first care.
- Calibrated digital flow meters for precise dosing
- Available for kids and adults
- Great for first-time anxious patients to test the waters
- No driver needed afterward
Laughing Gas (Nitrous Oxide) Cost & Insurance
Nitrous oxide is $199 per visit self-pay. Some PPO plans cover it for kids and for medically necessary cases. Often included with extractions and longer procedures.
Laughing Gas (Nitrous Oxide) FAQs
Will I really be laughing?
Probably not. Most people just feel mellow, calm, and a little tingly. The “laughing” name is from the early days of nitrous use.
Is it safe for my child?
Yes, extensively studied and very safe for kids 4 and up. We’ll discuss specific health history first.
Can I drive myself home?
Yes. We give you pure oxygen at the end which clears the nitrous quickly. Most patients are fully clear within 10 minutes.
Does it replace pain medication?
No. We still numb the area with local anesthesia. Nitrous reduces anxiety, not physical pain.
Schedule a Laughing Gas (Nitrous Oxide) Consultation
Ready to take the next step? Call (817) 275-2229 or request your appointment online.
Laughing Gas questions, answered.
Tap a question to expand the answer.
What does laughing gas feel like?
Most patients describe it as a light, floaty, warm relaxation. Sometimes a tingling in fingers or toes. You stay fully aware - you can talk to us, hear instructions, and respond.
Will I actually laugh?
The "laughing" name is overstated. Most patients feel relaxed and pleasant, but uncontrolled laughter is rare. Some kids do giggle.
Are there side effects?
Rare, mild, and short-lived. Some patients feel briefly nauseated if they've eaten a heavy meal beforehand. We recommend a light meal 2 hours before, not a full one.
Is it safe?
Yes - nitrous oxide has been used in dentistry for over 150 years with an excellent safety record. We monitor oxygen saturation throughout, and the gas is delivered with a minimum 30% oxygen mix.
Can I have nitrous oxide if I'm pregnant?
Generally not recommended in the first trimester. We discuss with your OB if you're pregnant - usually we'll defer non-urgent dental work until after delivery, or use no sedation if treatment is needed.
Related Services
Oral Sedation \u00B7 Wisdom Teeth Extractions \u00B7 Pediatric Dentistry \u00B7 Root Canals
Book your visit today.
New patients welcome. Most PPO insurance accepted. Same-day emergency appointments available.