Meet The Team

Dr Sara Lonergan has a Bachelor of Medical Science from Macquarie University and a Bachelor of Dental Surgery from the University of Sydney. After qualifying, she practised around Sydney’s Northern Beaches, in rural areas and at Sydney Dental Hospital. In 2008, Sara took over the practice from Dr Clements, who had run the practice for 40 years, and it was then that her vision for Tooth Sparkler came to life.

Sara is a firm believer in finding the right answers for her patients and won’t quit until she does just that! Following a holistic approach, she presents the best solutions in all areas of dentistry and works directly with patients to achieve their oral health goals. With five children, Sara is a self-proclaimed ‘kid wrangler’ and is known for her success in treating children and her knack for making each visit a positive experience. Outside of the practice, she spends time with her family and enjoys reading, bushwalking, gardening, and ‘attempting’ to maintain some household order.

Moe Iwasawa is an Oral Health Therapist (Adult Scope). She was born and raised in Sydney, Australia, and completed her Bachelor of Oral Health degree from the University of Sydney. Moe believes that the patient's needs and comfort should always come first and strives to provide the highest quality of care. Her passion for delivering a pain-free dental experience stems from her desire to empower patients of all ages to maintain good oral health and hygiene in the long term.

In her free time, Moe has a creative side and enjoys exploring her artistic talents. She loves painting, visiting art museums, and discovering new cafes.

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Moe speaks Japanese and English

Originally qualified in Japan, Hiromi because certified to practice Dental Hygiene in NSW in 2004 and has been a Northern Beaches local since. She has extensive experience across a broad range of areas including general dentistry, implant care, cosmetic dentistry and periodontics. Hiromi is passionate about delivering the best experience to her patients and prides herself on her gentle but effective cleaning. In her spare time she can be found ocean swimming, patrolling as a surf life saver or just hanging with her family at the beach.

Hiromi speaks Japanese and English

Jemma graduated with a Bachelor of Oral Health at the University of Sydney. She is passionate about providing excellent care to every patient with a gentle approach.

She has a special interest in orthodontics and periodontal disease. In her free time Jemma enjoys fishing and candle making.

Jemma speaks Tagalog and English

Mae joined the Tooth Sparkler team in 2021 and has been the perfect addition to the team. Her buzzing energy is contagious and makes the whole practice smile whenever she is around.

With a family of her own, Mae is wonderful with kids who come into the practice. Whether young or old, she makes coming to the dentist an enjoyable experience for all patients.

Kris is a true Northern Beaches local, embracing the sun and surf that define this coastal haven. She brings a wealth of experience and expertise to our practise, constantly staying updated on the latest advancements in dental technology.

Eden is a dental assistant who had Invisalign and loved the experience and process which brought her to her dental traineeship at the Tooth Sparkler. Her goal is to further study in dentistry and become a part time worker to do volunteer work around the world. In her spare time she plays the piano and the guitar, bothers her orange cat or you’ll find her on the beach.

Safira is a dental assistant with over one year of experience, passionate about helping patients look and feel their best. With a strong background in beauty, she aims to continue her studies and hopes to open her own business one day. She’s also worked in a vet clinic and dog salon — so you’ll definitely catch her petting Zeus quite a bit!

Jonny is a dental assistant who helped out at Tooth Sparkler for work experience in Year 10 and during the school holidays in high school. Now that he has finished high school, he will be working a few days per week as part of the team!

You might see him in the treatment room as a dental assistant or on the front desk as a receptionist. Jonny is hoping to one day become an Oral Health Therapist.

Tanya moved to Australia from the Ukraine in 2014. In 2020 she returned to the Ukraine where she has been working in Customer Service and Administration at a Private School. She has previously worked as Dental Assistant and is patient about working in the Dental Industry and loves meeting and chatting to our patients.
She has now settled back in Australia with her family. She enjoys cooking and spending time with her family, her husband and her 13 and 11 year old.

Breed: Cobberdog/ labradoodle
Colour: Gold
Coat: hypoallergenic and non-shedding
Date of birth: 7/8/2021
Characteristics: friendly, happy, kind, loving, intelligent, playful

Things he likes to do:
- Eating
- Sleeping
- Destroying his toys
- Long walks
- Playing with his brother Loki


Zeus is available to give cuddles to patients, both young and old or to sit with nervous patients during treatment. As an accredited dental practice with the ADA we have strict hygiene standards in place to ensure that he complies with infection control standards. This includes ensuring he is a non- shedding, hypoallergenic dog that is only allowed in certain areas of the practice.
Zeus is in the process of being certified through Therapy Dogs Australia. He also has an experienced and qualified dog trainer, Tara Thomas, who is a certified behavioural dog trainer.