At MPW Dentistry the comfort of our patients is very important, and it is something for which we have an enviable reputation. We understand that many people are nervous about visiting the dentist, and that more still have a fear of anaesthetic delivered by injection. If this sounds like you, then one of the easiest solutions is having your dental work performed by Dr Walker using nitrous oxide sedation – commonly known as ‘happy gas’. N2O is a colourless, odourless gas that has no taste, but it does have a sedative and analgesic effects.


Because dentist happy gas is inhaled, it is often requested by nervous or anxious patients. That’s because with our nitrous oxide system your fear and apprehension will diminish – allowing you to relax throughout your treatment.


The process for inhaling nitrous oxide is simple: we position a nasal hood comfortably over your nose through which you breathe in the nitrous oxide gas – the more you breathe the more effective the gas. Dr Walker begins with a low nitrous oxide to oxygen mix which is slowly increased to the point where you are comfortable to proceed with the sleep dental work. Once the right mix is found it will take just 2 to 3 minutes to take effect. We note the ideal mix on your records for future sessions. Following your sleep dental procedure the nasal hood is removed and, once you begin to breathe oxygen normally, the effects of nitrous oxide dissipate and are completely gone within 5-10 minutes.


If you are having nitrous oxide sedation you don’t need to fast or follow any other pre-appointment instructions.

  • simply come in,
  • be administered our dentist happy gas,
  • have your sleep dental work done in a comfortably relaxed state, and
  • be able to drive away.

The effects of nitrous oxide include:

  • Feelings of light-headedness and warm sensations;
  • A feeling of well being, euphoria and or floating;
  • During heavier sedation hearing may dissolve into a constant ‘hum’ – but you can still hear;
  • At a deeper level of sedation sleepiness may occur.

With Relative Analgesia (happy gas ) there are no residual effects hence you can drive and operate machinery straight away. In the experienced hands of Dr Walker, inhaling nitrous oxide is an ideal way to have pain-free, fear-free dental treatment. By offering you the option of taking dentist happy gas, the MPW Dentistry team makes it easy for you to maintain good oral health, and we go out of our way to ensure your comfort each time you visit. Please note: Happy gas is a safe and effective treatment and a fantastic way to treat kids. Dr walker trains other dentists in the use of happy gas nationally. Call or email us to arrange an appointment or to discuss the sedation options we offer.


Sleep Dental in Sydney



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Sydney Sleep Dental


IMPORTANT We are a certified Dental Board Sedation practice offering Intravenous Sedation on a daily basis unlike other practices that bring in an anaesthetist on a monthly basis to perform their sedations. We receive referrals from many dentists for sedation & General Anaesthesia. So if you enquire elsewhere please ensure, for your security, that it is to a dental board approved practice. We offer General Anaesthesia on a regular basis at our rooms and we are one of the very, very few in the Sydney metropolitan area.