SEDATION DENTISTRY · NEWTON, MA
Laughing Gas (Nitrous Oxide) in Newton & Boston
Laughing gas is the gentlest, most flexible sedation option available — fast-acting, completely reversible, and available for any procedure at Smolyar Dental in Newton, MA. Dr. Alex Smolyar offers nitrous oxide to patients of all ages who want to feel calm, comfortable, and in control during their dental visit. Serving greater Boston.
Request ConsultationAbout This Service
What is laughing gas and how does it work?
Nitrous oxide — commonly known as laughing gas — is a colorless, odorless gas administered through a small, comfortable mask placed over the nose. Inhaled in a carefully calibrated mixture with oxygen, nitrous oxide produces a pleasant state of relaxation and mild euphoria within two to three minutes of inhalation. It reduces anxiety, raises the pain threshold, and creates a sense of well-being that makes dental treatment feel significantly more manageable. The patient remains awake, cooperative, and able to communicate throughout the procedure — but feels calm, detached from discomfort, and generally unbothered by what is happening.
Nitrous oxide has been used safely in dentistry for more than 150 years and has an exceptional safety record across all age groups. It is the only sedation agent that is both fast-acting and rapidly reversible — effects begin within minutes of inhalation and clear completely within 3 to 5 minutes of breathing pure oxygen at the conclusion of the procedure. This reversibility is what makes nitrous oxide uniquely practical: patients can drive themselves to and from the appointment, return to work or school immediately afterward, and resume all normal activities the same day. No recovery period is required.
Nitrous oxide is appropriate for mild to moderate dental anxiety, sensitivity to sounds or sensations during treatment, a strong gag reflex that makes dental work difficult, and for children or adults who are cooperative but simply want to feel more comfortable. It is the entry point of the sedation spectrum — the most accessible, the least disruptive to daily life, and the easiest to use at any appointment without advance planning. At Smolyar Dental in Newton, MA, nitrous oxide is available for any procedure from a routine cleaning to a complex restoration.
“Nitrous oxide is the great equalizer in dental anxiety. Five minutes after we start, a patient who was white-knuckling the armrests is completely relaxed, telling me about their week. It is safe, it works, and it transforms the appointment for patients who need it.” — Dr. Alex Smolyar, DMD
Candidacy
Is laughing gas right for you?
Nitrous oxide is the most broadly appropriate sedation option available. Most patients with dental anxiety and no respiratory contraindications are good candidates. Dr. Smolyar reviews your medical history before recommending any sedation.
Often a great fit if you have…
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Mild to moderate dental anxiety that makes appointments uncomfortable or stressful
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A strong gag reflex that makes impressions, X-rays, or treatment difficult
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Sensitivity to the sounds, smells, or sensations of dental treatment
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A busy schedule that makes a recovery period impractical
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Children or teens who are cooperative but anxious about dental treatment
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A preference for remaining fully awake and in control during treatment
Alternatives may be better for patients with…
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Severe dental phobia where nitrous oxide alone does not provide sufficient relaxation
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Significant respiratory conditions that make nasal breathing during treatment uncomfortable or contraindicated
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A blocked nasal passage on the day of the appointment (congestion significantly reduces effectiveness)
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Pregnancy — nitrous oxide is generally avoided during the first trimester
A comfortable dental visit is possible.
Tell us about your anxiety when you call. Dr. Smolyar’s team will make sure the right option is ready for your appointment. Schedule your visit at Smolyar Dental in Newton, MA — we serve patients from across greater Boston.
Request ConsultationWhat to Expect
What to expect with laughing gas at Smolyar Dental
Nitrous oxide sedation at Smolyar Dental in Newton, MA requires no special preparation and integrates seamlessly into any appointment. Here is what the experience looks like.
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Step 01
Pre-Appointment Check-In
Before Your VisitLet our team know you would like nitrous oxide when you schedule your appointment. Dr. Smolyar’s team reviews your medical history in advance for any contraindications. No fasting is required, though a light meal beforehand is generally recommended. You may drive yourself to and from the appointment — no escort needed.
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Step 02
Mask Placement & Onset
2–3 MinutesA small, comfortable nasal mask is placed over the nose. A calibrated mixture of nitrous oxide and oxygen — typically beginning at around 30 percent nitrous oxide and adjusted to patient response — is delivered. Within two to three minutes, most patients notice a pleasant warmth, a tingling sensation in the hands and feet, a feeling of lightheadedness, and a general sense of calm and well-being.
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Step 03
Treatment
Duration of ProcedureDr. Smolyar proceeds with the planned treatment while the patient is relaxed and comfortable. The level of nitrous oxide is adjusted throughout as needed. Patients remain awake and can communicate throughout. Local anesthesia is still used for procedures requiring it — nitrous oxide raises the pain threshold but does not eliminate the need for anesthesia when clinically appropriate.
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Step 04
Recovery
3–5 MinutesAt the conclusion of the procedure, pure oxygen is administered through the mask for three to five minutes. This fully clears the nitrous oxide from the system. Within five minutes, the patient feels completely normal — no grogginess, no lingering sedation effects. You can drive yourself home, return to work, and resume all normal activities immediately.
Why Choose Dr. Smolyar
Why choose Smolyar Dental for sedation dentistry?
Dental anxiety is more common than most people realize — and more treatable. Here is why patients across greater Boston choose Smolyar Dental when they need comfortable care.
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25+ Years of Patient-Centered Care in Newton, MA
Dr. Smolyar earned his DMD from Tufts University School of Dental Medicine in 1998 with honors, and completed Pankey Institute training — a curriculum built on the relationship between dentist and patient as the foundation of everything. More than 25 years of practice in Newton, MA has made him acutely attuned to the role anxiety plays in dental health. Patients who avoid the dentist because of fear consistently have worse oral health outcomes. Dr. Smolyar’s commitment to making every level of sedation available is a direct expression of his belief that no patient should ever choose between comfort and care.
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Dental Anxiety Is Real — and Taken Seriously Here
At Smolyar Dental, dental anxiety is never dismissed or minimized. Dr. Smolyar and his team are trained to recognize and accommodate every level of anxiety — from mild apprehension about the drill to severe phobia that has prevented a patient from seeking care for years. The right sedation option is selected collaboratively, based on the patient’s specific anxiety level, the procedure planned, and the patient’s medical history. No one is made to feel embarrassed about needing sedation to access care.
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Sedation for Any Procedure — Cleanings to Complex Cases
Sedation at Smolyar Dental is not reserved for surgical procedures. Patients with significant anxiety can receive nitrous oxide, oral sedation, or IV sedation for any appointment — including routine cleanings, fillings, and examinations. This means that patients who have avoided the dentist for years because of fear can access comprehensive care — exam, X-rays, cleaning, and any necessary treatment — in a single comfortable visit, and then maintain their health at regular intervals going forward.
Patient Reviews
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Dr. Alex Smolyar is the best dentist in the world. He is so talented and professional but above all he is an amazing human being. I have been his patient since 2015 and he does a phenomenal job. I appreciate everything he does.
Comprehensive Dental Care · Google Review -
Dr. Smolyar was tremendous. He, Ronit, and his whole team completely exceeded my expectations. Alex is a skilled and meticulous professional. In every sense, a great experience.
General Dental Care · Google Review -
Dr. Smolyar is an Einstein in the field of dentistry. After suffering for years with chronic migraines and visiting multiple specialists, Dr. Smolyar diagnosed and treated my migraines without medication. No more pain.
TMJ & Headache Dentistry · Facebook Review
Frequently Asked Questions
Questions worth asking.
Common questions about laughing gas and nitrous oxide sedation at Smolyar Dental in Newton, MA.
Ask Dr. Smolyar-
No. Nitrous oxide produces relaxation and a pleasant, calm state — but you remain fully awake and able to communicate throughout the procedure. You will be aware of what is happening but will feel detached from anxiety and discomfort. This is sometimes called “conscious sedation” to distinguish it from deeper sedation states where the patient is not fully responsive.
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Yes. Nitrous oxide has been used in dentistry for more than 150 years and has an excellent safety profile across all age groups when administered by trained providers using appropriate equipment and monitoring. At Smolyar Dental in Newton, MA, the nitrous oxide delivery system is calibrated to deliver a precise mixture of nitrous oxide and oxygen. Patient comfort and vital signs are monitored throughout every sedation appointment.
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A light meal two to three hours before the appointment is recommended. Eating a heavy meal immediately before laughing gas can occasionally cause nausea, though this is not common. Avoiding heavy, fatty meals in the hours before your appointment is the main dietary guidance. No fasting is required for nitrous oxide sedation, unlike deeper sedation options.
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Yes. Nitrous oxide is frequently and safely used for pediatric dental sedation. It is one of the most common sedation methods for children in dentistry because of its rapid onset, rapid reversibility, and excellent safety record. At Smolyar Dental in Newton, MA, Dr. Smolyar reviews each child’s health history and determines candidacy on an individual basis.
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Nitrous oxide sedation is an add-on to the cost of the dental procedure being performed. Some dental insurance plans cover a portion of the cost for documented anxiety or for pediatric cases. Contact Smolyar Dental at (617) 712-2770 for current pricing information at our Newton, MA practice.
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Yes — this is one of the most important practical advantages of nitrous oxide over other sedation options. Because the effects clear completely within 3 to 5 minutes of breathing pure oxygen, you will feel entirely normal by the time you leave the chair. You can drive yourself home, return to work or school, and resume all normal activities immediately. No escort or recovery period is needed.
Serving Newton & Greater Boston
Laughing gas dentist near you.
Smolyar Dental is located at 71 Needham Street in Newton, MA, minutes from Newton Centre, Chestnut Hill, and Route 9. Patients seeking a gentle, comfortable dental experience with nitrous oxide in the Boston area choose Smolyar Dental because Dr. Smolyar takes dental anxiety seriously and ensures every patient has access to the sedation level they need.
We serve patients from Newton, Brookline, Chestnut Hill, Needham, Wellesley, West Newton, Waltham, Weston, Natick, and across the greater Boston metro area. On-site parking is available and the practice is accessible from the Newton Highlands MBTA Green Line D stop.
- Phone
- (617) 712-2770
- Hours
- Mon–Thu: 9am to 4pm · Friday: 9am to 2pm · Saturday & Sunday: Closed
71 Needham Street, Newton, MA 02461
Route 9, Route 128/95, and the Mass Pike. Most patients within 20 min.
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Comfortable care is possible We’re here to help.
Dental anxiety should never stand between you and the care your health deserves. Dr. Smolyar and his team take every patient’s comfort seriously — from the moment you walk through the door to the moment you leave. Tell us about your anxiety at your first call. We will make sure the right option is ready for you.
- Dr. Smolyar personally reviews every patient’s anxiety level and selects the appropriate sedation
- Sedation available for any procedure — from cleanings to complex reconstructive work
- Newton, MA office — serving Boston, Brookline, Chestnut Hill, Wellesley and beyond
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