Laughing Gas – Dental Nitrous Oxide

BIDH dental hospital is one of the few dental providers in Thailand that provides the full range of sedation dentistry. This includes the mild sedation using laughing gas or nitrous oxide (N2O).

Laughing gas is a mixture of a nitrous oxide and oxygen inhaled through a small mask that fits over your nose. It is colorless and odorless that is safe and effectively manages pain and dental anxiety to some extend during dental treatment. If opted, you are asked to breathe normally and the effects of laughing gas is felt within a few minutes. The effects also wears off quickly by breathing pure oxygen through a mask after completion of dental treatments.

How does laughing gas work for dental treatments?

Nitrous oxide slows down the reaction of your body, so your feel calm with an euphoric feeling. Studies shows that the use of nitrous oxide enables a time effective and safe method for children to reduce pain and facilitate venous cannulation.

Fluoride Treatment

For children

ทันตกรรรม แก๊สหัวเราะ

For Adults

Inhalation sedation is a simple technique whereby nitrous oxide gas is administered through a a nasal hood. The nasal hoold is placed over the patient’s nose. The patient breathes the nitrous oxide gas normally whilst dental treatment being performed.

Your dentist may adjust the concentration percentage of nitrous oxide with oxygen according to how the age, weight and how the patient feels. For children who have high dental anxiety, parents can help with a more favourable experience by lending out the mask to their child and role-playing prior to actual treatment.

Get a complimenatry consult

Inhalation sedation with laughing gas is simple, and safe

Benefits and uses of laughing gas

การรักษาภายใต้การดมยาสลบ คืออะไร

A title

Image Box text

The benefits of Inhalation sedation with nitrous oxide include:  

  • Fast as a sedative
  • Effects can be quickly wear off for fast discharge
  • Safe and can be administered at any age

Uses of Laughing Gas

Inhalation sedation with nitrous oxide may be used for any types of dental treatment from simple procedures such teeth cleaning or dental fillings teeth to more complicated dental work including teeth extraction or root canal treatment. 

Because you are fully conscious, you are able to react to your dentists prompts to clench teeth together, bite or response to decisions during dental treatment. The only difference is that ou feel relaxed and comfortable. Your breathing airways remains normal and nitrous oxide the can be quickly worn off by administering pure oxygen to breathe.

gas dental sedation

Effects of laughing gas

laughing gas

A title

Image Box text

Nitrous oxide is a depressant that reduces functional or nervous activity,  you may feel:
  • Happy
  • Light-headed 
  • Feeling of giggling
  • Mild euphoria
  • Relaxed

Due the above effects, nitrous oxide sedation is also known as “laughing gas”.

Individual typically expect to feel the full effects within two to three minutes. You may also feel like your arms and legs are heavy or a tingling sensation in your limbs. 

Potential Side Effects of Nitrous Oxide

Some people may feel side effects from depressant such as  

  • headaches and nausea
  • feeling agitated or vomit after the laughing gas is removed
The good news is that only about 5% of patients experience these side effects. and there are no long-term side effects of nitrous oxide. 
laughing gas

A title

Image Box text

Who may opt for Laughing Gas

Laughing gas may not be recommended to everyone.
  • women who are pregnant
  • has a history of chronic obstructive pulmonary disease (COPD) or where airway/breathing are compromised
  • has methylenetetrahydrofolate reductase deficiency
  • under bleomycn sulfate treatment
  • severe emotional disturbances or have drug-relatd dependencies
  • lack of co-operation
  • has pulmonary hypertension
  • has respiratory track infection
  • gotten recent middle ear disturbance/surgery

Nitrious oxide seation may be suited for: 

  • fearful and anxious patient
  • certain sepcial needs care patients
  • patient whose gag reflex interfers with dental care
  • a co-operative child undergoing lengthy dental procedures
best chidlren dentist

Can you still feel pain with laughing gas?

Nitrous oxide dulls sensitivity to pain as it reduces anxiety and allows patients to feel calm. For dental treatments that may involve discomfort and affects tooth nerves such as deep caries fillings, root canal treatment or teeth extraction, local anesthetisia is still normally used to reduce pain.
Laughing gas work well with anesthetic, so you can be comfortable and pain-free during your dental treatments. A local anesthetic may be administered in gel form or by a needle at the treatment site.

Inhalation sedation with nitrous oxide is economical, safe and helps manage dental anxiety. Get a consult to find out more.

Types of Sedative Dentistry

Bangkok International Dental Hospital (BIDH) offers the full range of sedative dentistry that includes mild, moderate, sleep sedation to general anaesthesia. The recommended level of sedation varies with your dental anxiety levels and the complexity level of treatment.  

Sleep sedation dentistry
General anaesthesic sedation

Sedation dentistry Videos

Find out more on the various Types of Sedation Dentistry offered at BIDH Dental Hospital in managing dental anxiety.  

laughing gas dentist

1. Dentists for Dental Sedation Option

BIDH dental hospital assigns priviledges to their dentists and dental specialists based on their educational qualifications, skills and experience on type of dental treatments they can treat and perform. This helps ensures that each of our patients receives professionally and successful treatment results.

Simliarly, dental treatments done under sedation dentistry are granted only to specific a specific dental specialists who are trained on sedative dentistry. The group of dental specialists that most commonly uses sedation options are oral surgeons, implantologists and pediatric dentists who treat children. 

Sedation Dentistry Dentists

Dr.Boworn Klongnoi

Dr, Boworn Klongnoi DDS., MD.,

German Board of Oral and Maxillofacial Surgery

Dr. Varangkanar Jiraratanasopa


Thai Board of Pediatric Dentistry

ผศ.ทพ. วินัย กิตติดำเกิง


The American Board of Oral and Maxillofacial Surgery

Read more about our dental specialists (click here)

Anaesthesiologists assess, administer and monitor moderate to deep sedation levels at Bangkok International Dental Hospital.

Simliarly, dental treatments done under sedation dentistry are granted only to specific a specific dental specialists who are trained on sedative dentistry. The group of dental specialists that most commonly uses sedation options are oral surgeons, implantologists and pediatric dentists who treat children. 


Lt.Col. Krisana Nongnuang, MD.


Mahidol University (Phramongkutklao College of Medicine) M.D. (First Class Honors and Gold Medal Award)

พญ. วรรณวิภา มาลัยทอง


Doctor of Medicine, Phramongkutklao College of Medicine, Mahidol University


Laughing gas for dental treatments is a safe and effecive mild sedation method that may be used to manage dental anxiety and dentophobia. It is a simple and economical technique used commonly in chidlren and adults to make patient feels more comfortable. 

Bangkok International Dental Hospital (BIDH)

98 Sukhumvit Soi 2, Khlong Toei,
Ploenchit area, Bangkok 10110
(Entrance by Soi Duang Phithak Rd Expressway and Sukhumvit Soi 2 – JW Marriott)

Tel : 02-115-8977, 095-517-1587
Email :

LINE ID @DentalHospital


Google Maps : BIDH Dental Hospital

Location Map of BIDH Sukumvit 2

Map BIDH Dental Hospital

We use cookies to improve performance. and good experience using your website You can study the details at Privacy Policy and can manage your own privacy by clicking settings

Privacy Preferences

You can choose cookie settings by on/off. Cookies of each type are available on request, with the exception of essential cookies.

Allow All
Manage Consent Preferences
  • Necessary
    Always Active

    Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.

  • Analytics

    Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.