Welcome to Beckenham Dental Surgery

We are a family friendly dental surgery that provides our local community with all of their general dental needs.

We pride ourselves on honesty, affordability and an excellent standard of care for all of our patients.

We are proud to announce we are now a Certified Accredited Dental Practice. This means we have been nationally recognised by the highest governing body in quality assurance as providing the best possible standard of care for our patients. To find out more about practice accreditation, ask us or go to qip.com.au


Your Family Friendly Dentists

Sean Heah

Sean has extensive experience and training in providing surgical treatment for patients…

Suzanne Leong

Suzanne is a gentle and caring dentist who finds helping patients improve and maintaining their oral health highly rewarding.

Heidi McKenna

Heidi loves getting to know her patients and their families. She strives to make them feel comfortable, while educating…

Mia Pujianto

Mia enjoys meeting and looking after her patients. She welcomes you to her Dental Surgery.

Mary Todd

Mary’s main goal is to relieve your pain and restore your function in the most gentle and affordable way possible.

Our Services

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Children, Elderly and Special Needs

We provide an excellent standard of treatment for all members of the family, including children, the elderly and those with special needs.
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General Dental Services

We provide all aspects of general dental services including checkups and cleans, fillings, extractions, dentures, root canal treatment, crown and bridge, teeth whitening and more.
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Emergency Dental Services

If you have a toothache or a broken tooth, we can provide emergency assessment and treatment.

About Beckenham Dental Surgery


Welcome to Beckenham Dental Surgery. We are a family friendly dental surgery that provides our local community with all of their general dental needs. We pride ourselves on honesty, affordability and an excellent standard of care for all of our patients.

We are proud to announce we are now an Independently Accredited Dental Practice. This means we have made a commitment to your safety and to providing a high quality of service. Your healthcare rights and privacy are protected, you can rely on our team and be confident that we have systems in place to continuously improve in everything we do.


Dr. Sean Heah

Dr. Sean Heah graduated with a Bachelor of Dental Science with Honors in 2008, and has since gone on to complete a Postgraduate Diploma in Clinical Dentistry in Oral surgery from Otago University as well as Graduate Diploma of Clinical Dentistry in Conscious Sedation and Pain Control from the University of Sydney.

He is an AHPRA Board endorsed Dental I.V Sedationist and the director of Western Australian Dental Sedations.

Sean has extensive experience and training in providing surgical treatment for patients, particularly in difficult wisdom teeth removal and complex dental implant treatment. He has completed training around the world, including full mouth implant reconstruction at the Sclar Centre in Miami, USA and the London Institute for Dental Implants.

He is a member of the Australian Dental Association, and a Fellow of the International Congress of Oral Implantologists and the International Committee on Continuing Dental Education. Being certified in advanced life support with the Australian Resuscitation council and having been involved with St. John Ambulance as a volunteer ambulance officer for a number of years, he regularly undertakes and facilitates medical emergency training for dentists to ensure the highest level of service and care.

Sean has been providing dental and surgical treatment to patients around W.A with severe anxiety at the dentist for many years, under Local Anesthesia, Nitrous Oxide, I.V Sedation and General Anesthesia. This has allowed him to develop a deep sense of empathy and understand the value of providing gentle, caring and highly skilled treatment for all of his patients.

Consultations for wisdom teeth extraction, implant placements and dentistry performed under I.V sedation are available with Dr Sean Heah by appointment. Please contact the surgery to make a booking.

Dr. San Cheng (Suzanne) Leong

Dr. San Cheng (Suzanne) Leong graduated from The University of Otago, New Zealand in 2008. With a decade of experience, she has worked in both rural and metropolitan practices in New South Wales and Victoria. She has since relocated to Perth, Western Australia to be closer to home.

She is a gentle and caring dentist who finds helping patients improve and maintaining their oral health highly rewarding. She is passionate about all aspects of general dentistry and works meticulously to achieve high quality dental treatment for her patients.

She is a member of the Australian Dental Association and frequently attends continuing education courses to keep up-to-date with the latest technologies and advancements is dentistry, with a keen interest in restorative and cosmetic dentistry.

Outside of dentistry, Suzanne spends as much time as possible with her family and two young children. She speaks English and Malay. She looks forward to meeting and caring for you and your family.

Dr. Heidi McKenna

Heidi was born in Sydney and moved to Perth in 2013. She achieved her Bachelor of Science at the University of Sydney in 2010 and graduated from the Doctor of Dental Medicine programme in 2016. After graduating Heidi worked in Esperance before moving back to Perth.

Heidi loves getting to know her patients and their families. She strives to make them feel comfortable, while educating them on the importance of their dental health.

Outside of the office Heidi enjoys spending time with her family and friends, going to the movies, baking and going to the gym.

Heidi is registered and trained in the supply of Nitrous Oxide (Happy Gas) to adults and children. Please speak with Dr Heidi if you wish to have this for your next dental appointment.


Dr. Mia Pujianto BDSc (UWA)

I was born in Indonesia and came to Perth in 1997. I went to St Norbert’s college in Queens Park and graduated from UWA dental school in 2008. 

My parents are good cooks and busy with their food businesses based in Bentley. I have two very supportive brothers, an awesome sister in law, and three beautiful nieces (two of which are twins!). 

On the weekends, once the housework is done, I like to be outside enjoying the sunshine and fresh air. 

I have worked at Beckenham Dental since September 2013. I am thankful to have wonderful team members who look after each other and our patients the best that they can. I love my job and interacting with my patients, whom many I consider friends. Thank you for being a part of our community. 

Dr. Mary Todd BDSc Hons (UWA)

Hi, I’m Mary, one of the Dentists here at Beckenham Dental Surgery. 

You will find me to be a laid back and non-judgemental dentist, who is just happy you make the effort to come!

I have a husband, Doug, who is a scientist in Welshpool, as well as two little girls, Maggie and Rosie. I don’t really know why I chose to be a dentist, but I am happy in my job and I find it interesting every day. My hobbies include eating cakes and cookies and online shoppping, I spend the COVID lockdown trying to learn how to bake, so that I can feed my sugar addiction. I’m a little bit of a hippie at heart and love a bit of nostalgia. 

Please know I will always do my best to be gentle and understanding, and look after not just your teeth but you too (the person attached to them!). 

The Team

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Frequently Asked Questions

What to expect on your 1st visit?

If you have a specific tooth/ gum related problem please mention this to our receptionist when you make the appointment so they can allocate an appropriate appointment time. At the time of the appointment the dentist will evaluate & address the problem accordingly. 

If you have not been to a dentist for quite some time & regardless whether or not you think you have a problem/problems, the dentist would do a thorough check of your teeth and soft tissues (the pink areas of your mouth) as well as taking some x rays then discuss with you what needs to be done as well as the associated costs. 

If you have been to another dentist within the last 12 months  & have no problem, the dentist is very likely to  do a thorough check & scale/clean. If you have not had x rays within the last 2 years the dentist is likely to retake them. 

We use a camera to take photos so we can show you what we can see in the mouth. 

Why are regular dental check ups important?
We use our teeth for a lot of things, like chewing, talking and appearance. Just like a car, we need to have our teeth checked and serviced regularly, so if there are any problems they can be picked up and dealt with sooner rather than later. Lack of pain or discomfort does NOT necessarily mean there is no problem with our teeth.
Why does my dentist want to take X-rays?

Imagine a doctor who is assessing a patient for a broken leg. He knows the leg is probably broken because the patient is in pain & the leg may be in an unnatural position. However, a doctor will not perform any treatment until he has seen the x-ray to assess the fracture & assess any damage to the surrounding tissues. If the doctor was to place a cast on the suspected broken leg without taking an x ray, he is likely to miss crucial information. This in turn could result in incorrect or no healing, more pain, more time and cost to rectify the incorrect treatment and slower recovery.

The same goes for dental x-rays. Without them, we can only see issues that are present on the surface. They greatly assist our dentists in forming accurate diagnoses and in turn perform the correct treatment. Our dentists will never recommend an x-ray unless it is absolutely necessary. Without it, your diagnosis and treatment could be compromised.

What if I am scared to come to the dentist?

The thought of a visit to the dentist can sometimes be daunting. For some people this comes from a previous traumatic experience, or fear of the unknown. We will do our best to ensure your experience with us is as relaxing, comfortable and pain free as possible. 

If you are very nervous we encourage you to initially come for a check up & x rays. We can then formulate a treatment plan & decide what is the best way to carry it out. Dr. Heidi & Dr. Mary are able to provide dental treatments with happy gas. For many patients this is enough to make them more relaxed. For other patients we can prescribe them anti-anxiety medication to take 1 hour before the appointment. Alternatively, Dr. Sean comes once a month and he can put you to sleep in a safe environment. 

I have a hole in my tooth and it hurts. What will the dentist do?

It is important that you make an appointment with your dentist to have your tooth looked at. Depending on what can be seen in the mouth, an x ray may be taken to see how deep the hole is. In most cases, a simple filling is required. However, if the hole is close to the nerve space, your treatment options can vary and a filling isn’t suffice to relieve the pain. Your dentist will discuss your options once she has made a diagnosis. The important thing to remember is that your dentist is here to help you get out of pain and the only way to do that is for you to come in and see us.

The dentist says I have a hole in my tooth but I don't feel pain, why should I get it filled?

Tooth decay doesn’t always hurt, especially at the early stages. The longer we leave a hole untreated the closer it will get to the nerve of the tooth. Consequently, treatment required becomes more complex and expensive. Removal of a tooth is always an option but this should be the last resort as each time we lost a tooth the other teeth have to do more work. 

In general, it is more costly to replace a missing tooth than repairing it. 

What if I have no teeth at all?
If you don’t have any of your own teeth anymore, it is still recommended to have a visit with your dentist once a year to have your soft tissues (the pink areas of your mouth) checked. Sometimes lesions (coloured patches or lumps) can be present, that you don’t necessarily see or feel, but can be seen by your dentist. Sometimes these lesions resolve on their own, however some need further attention and treatment.
How does my health insurance work at the dentist?

If you have private health insurance with dental ancillary cover, please bring your health insurance card with you to your appointments for on the spot claiming using our HICAPS facilities. Please note we will need to physically swipe your card to process the claim. Your health insurance will cover a portion of your treatment costs, but often not the full amount meaning there will be a gap for you to pay. The amount your health insurance fund covers will depend on the type of policy you have. After your initial check up, the dentist will give you a treatment plan. Depending on which health fund you are with we may be able to find out how much they will cover for your subsequent treatment. Alternatively, you will need to contact them directly.

We are a HCF preferred provider. This means if you are a member with HCF, and are covered for dental you are likely to be entitled to a free dental check & scale and clean once a year. Please note this may not apply if you are on the lowest insurance level.

We are no longer a HBF preferred provider and from approximately 2 years ago HBF has been paying less for the majority of dental treatments. This means your out of pocket is likely to be more compared to what it was a few years ago. 

Other health fund members  (Medibank Private, BUPA) are welcome at our practice even though we are not a participating provider for these health funds. This means when you see us your insurance will still pay something for your dental treatment but less compared to when you attend a medibank or BUPA preferred provider unless you are on the top cover. 

My teeth feel fine. Can I just have a scale and clean only once a year?

During a scale and clean the dentist focuses only on getting the calculus/ tartar off & does not check the patient’s teeth. It is recommended to have a check up at least once per year. With your consent, the dentist will do this prior to & if needed after a scale and clean. Any issues you may have with your teeth or gums will be identified during a check up. Having no pain does NOT necessarily indicate there aren’t any problems with your teeth or gums. If you are covered for dental with your private health insurance, your health fund would pay a part of the examination fee.

How much does it cost to keep my teeth healthy?

You will have heard the phrase “prevention is the best medicine”, and this is true in dentistry. If you practice good oral hygiene at home, maintain a healthy and balanced diet and visit the dentist once a year for a check up and professional cleans, the cost of maintaining a healthy mouth and teeth is relatively low.

What treatment is ok when I am pregnant?

If you are expecting, we encourage you to come for your regular check up and clean. Pregnancy causes hormonal changes, which in turn changes how the body responses to dental plaque. Your gum is more likely to bleed when plaque is present. Some pregnant women also develop swollen gums during pregnancy. This can be addressed by a thorough scale and clean, as well as practising good oral hygiene routines at home. Other dental treatments such as fillings and extractions can be done at any stage of the pregnancy. Dental x-rays are safe to be done with very minimal risk, however it is not preferred unless absolutely essential. Elective dental treatments such as teeth whitening should be done after you deliver your baby.

When should I bring my child for their first dental visit?

We encourage you to bring your child with you to your dental appointments from an early age. This allows them to get used to our staff, as well as the sights, smells and sounds of the dental practice. This way, when they come for a dental checkup themselves, it isn’t as overwhelming for them.

Checkups usually start at about 2 years of age. Prior to coming in, try do a role play with your child. An example of this would be to get your child to open their mouth for you, and explain to them that the dentist will look into their mouth and count how many teeth they have. A few children’s television shows like Peppa Pig have an episode where she visits the dentist. You could show this episode to your child. Some children are less cooperative than others the first few times they attend. Don’t let this discourage you. Gently encourage your child, and never speak of the dental practice as a scary place. We want to create a positive experience for your child from the beginning, and doing these things builds the platform for a successful experience at the dental clinic.

What sort of things should I be doing to keep my kids teeth healthy?

Teaching your child good oral health practices from a young age is pivotal in ensuring life-long oral health. A good start is by parents setting a good example. Taking care of your own teeth sends a message that good oral health is something to be valued.

To help your children protect their teeth and gums and greatly reduce their risk of getting cavities, teach them to follow these simple steps:

  • Brush twice a day to remove plaque, the sticky film on teeth that is the main cause of tooth decay. Toothpaste is recommended for children above 2 years old. Children under the age of 10 lacks the manual dexterity of using a toothbrush thoroughly. While it is good to let them brush independently we encourage parents to brush the kids teeth once the kids completed their brushing. 
  • Daily flossing (using ‘flossete’ which is dental floss with a handle) to remove plaque from between your teeth and under the gumline. This is to prevent ‘cavities’ in the areas of in between the teeth. 
  • Eat a well-balanced diet that limits starchy or sugary foods, which produce plaque acids that cause tooth decay. When you do eat these foods, try to eat them with your meal instead of as a snack. This limits the frequency of acid attacks on the teeth.
  • Choose healthy snacks, such as an apple or cheese rather than biscuits or sweets. Dried sticky fruits such sultanas are not recommended as they stick to the teeth. Encourage your child to have a mouthful of water to drink after snacking. 
  • Reduce the amount of sugary drinks your child consumes, such as juices and flavoured milks and instead choose water or plain milk.
  • Some vitamins have ‘jelly bean’ like consistency & a few are coated in sugar. Please stay away from them.
  • Take your child to the dentist for regular check ups at least once per year.
Is teeth whitening safe to do?

Teeth whitening is safe when it’s done by a dentist. We predominantly do the take home kit whereby we take molds of your teeth & make clear trays that fit your mouth only.  We also give you the whitening gels so you can do this yourself at home. While this is the same concept as what you can buy online or at the chemist, it is different because the trays is made to fit your teeth only. We also trim the trays so your gum is not covered in excess whitening gels. The dentist will check your teeth prior to any whitening procedures. Any cavities in the mouth needs to be addressed first as we don’t want the gels to irritate the nerve of the teeth. The dentist will assess whether one is a suitable candidate for teeth whitening.  

Contact Us

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Monday – Friday:  9:00am – 5:00pm

Evening & Saturdays appointment are available by appointment.


08 9451 9827


70 Dulwich St,

Beckenham WA 6107