Frequently Asked Questions

What Oral / dental appliances are used for snoring and sleep apnoea?

Oral devices such as the mandibular advancement splint (pictured) may be a good alternative where CPAP is not appropriate or poorly tolerated.

It is a custom-fitted device that is worn during sleep. It consists of upper and lower pieces that fit over the teeth, joined by a hinge. The effect of the device is to move the lower jaw forward slightly. The helps to lessen upper airway collapse and obstruction during sleep. It is adjustable in fine incements (fractions of a millimetre).

Adequate dental health is required as the device is anchored to the teeth.

Oral devices are, in general, less effective than CPAP, especially for severe sleep apnoea. However, sleep apnoea treatment needs to be tailored to the individual, and an oral device may be the best option in certain circumstances, such as mild-moderate sleep apnoea and positional sleep apnoea (where sleep apnoea occurs predominantly when sleeping flat on one’s back).

Oral devices are not inexpensive and one cannot be certain of treatment success before starting. Often the specialist dentists who fit the devices will offer a guarantee of some sort. Alternatively, temporary oral devices are available – these include “Somnoguard”, “Apnoea-Guard” and “myTAP”. They are of lower cost and can be used for 1-2 months to establish whether the treatment is effective and comfortable.

Dr Adrian Chazan


Dr Chazan is a Respiratory & Sleep Physician, and General Physician. Born in Melbourne, he undertook his basic medical training at the University of Melbourne. With a passion for sleep and breathing, he trained at world-renowned centres of excellence in Melbourne and Sydney, including Westmead Hospital, the Alfred Hospital and Monash Medical Centre. Adrian has been involved in research activities in the fields of sleep apnoea, chronic obstructive pulmonary disease and exercise physiology.

Adrian utilises the latest findings in sleep research as well as the emerging technologies in diagnosis and treatment. He takes a patient-centered approach to medical care with the aim of empowering his patients to achieve better sleep and optimal long-term health outcomes.

Dr Calvin Sidhu


Dr Sidhu completed his Bachelor of Medicine at the University of Newcastle (NSW). He undertook his Physician training at Westmead Hospital (Sydney) and Specialist training in Victoria.

He has completed additional training in Interventional Pulmonology and Pleural Medicine at Sir Charles Gairdner Hospital (Perth) and Palliative Medicine (NSW). He has obtained required skills for bronchoscopies (respiratory endoscopies), endobronchial ultrasound (EBUS) and pleural procedures. He has relevant experience in managing general respiratory conditions, emphysema-COPD, severe asthma, bronchiectasis, lung tumors, enlarged chest lymph nodes (mediastinal lymphadenopathy) and pleural conditions (pneumothorax , pleural effusions) and incorporating procedural treatments if appropriate.

He currently also hold a honorary position as a Sleep Medicine fellow at Monash Hospital.