Our friendly team includes three dentists, a dental hygienist/therapist, dental nurses, receptionists and administration staff. With many years experience and training, we are dedicated to making your visit as pleasant as possible.

Dr Geoff Wallman BDS (Adel)

Dental Surgeon

Geoff is a registered dental surgeon with over 30 years of experience. He graduated from Adelaide University in 1981 and has worked as a general practitioner in Hong Kong for ten years. After moving back to South Australia with his family, he established practices in the Barossa Valley, Strathalbyn and Blackwood.

Geoff has extensive experience in implant technology, crown and bridge. He has undertaken extensive postgraduate studies in prosthetic and surgical implant therapy and minor oral surgery.

He is a current member of the International Team of Implantology and a past member of the European Society of Oral Laser Applications.

He has two children and enjoy golf and fishing in their spare time. Golf jokes are always welcome!

Dr Marsha Daych BDS (Adel)

Dental Surgeon

Dr Marsha Daych graduated from Adelaide University in 2001, then completed postgraduate studies for the Membership the Royal College of Dental Surgeons (MRACDS) and has worked in private practice for the last 20 years initially Tasmania, Before settling in Adelaide in 2006.

Marsha joined the team at Blackwood Dental in 2009, and has developed a very loyal patient base. 

Marsha is a firm believer in the importance of preventative and conservative dentistry. She has a passion for all aspects of general dentistry, including tooth-coloured fillings, crowns, onlays, endodontics, and implant dentistry. Her special interest areas include aesthetic dentistry, teeth straightening using Invisalign and the dental treatment of sleep apnoea. 

Dr Marsha strives to ensure her patients have a positive dental experience, and can provide Nitrous Oxide (Happy Gas) to help ease anxiety associated with dental treatment. 

Nitrous Oxide is also very helpful to help children cope with dental treatment. 

Marsha is an active member of the Australian Dental Association, and regularly attends professional development forums to ensure she is up to date with the latest dental advancements. 

Outside of work, Marsha spends time caring for her 3 children, playing piano, and in nature either going for a hike, or a bike ride. Marsha is also a leader in her children’s Scout group.

Dr Marsha consults on Mondays until 7PM, Tuesdays and Friday, and alternate Saturday Mornings. She speaks fluent Russian, and welcomes all Russian speaking patients to our clinic.


Dr Michael Brooks BDS (Adelaide)

Dental Surgeon

Dr Michael Brooks graduated with a Bachelor of Dental Surgery from the University of Adelaide in 2016.
Michael has a great interest in learning new skills and techniques and improving his existing knowledge, regularly attending dental education courses.

Outside of dentistry Michael enjoys spending time with friends and playing sport. Michael has played hockey his whole life and currently plays in the South Australian Premier League.

Michael is a member of the Australian Dental Association.


Dr. Chin Yeo


Chin Yeo is the newest member of the Blackwood Dental team. She has completed a Bachelor of Dental Science in Melbourne in 2013, and moved to Adelaide in 2023!

Chin always puts her patients first, and treats every one as she would her family.

Her patients often comment on her kind and gentle manner, as she takes the time to listen to her patients’ concerns and works closely with them to develop a treatment plan that meets their individual needs.

She is especially passionate about treating anxious patients, freeing patients from their pain, and restoring patients’ confidence by giving them the smile of their dreams!

Outside of dentistry, Chin enjoys spending time exploring Adelaide, and with her husband, and Cat Mochi.



Dr. Adeline Premanand


After calling Canada her home, Adeline moved to South Australia to complete her Bachelor of Dental Surgery at the University of Adelaide and has been working as a general dental practitioner since 2018. She moved back to Adelaide recently after providing dental care for patients in the South Australian Riverland Region.

Adeline believes good oral health is integral to good overall health since a healthy mouth has an impact on physical, social and mental well-being. She enjoys all clinical aspects of general dental practice, with an interest in children’s dentistry, root canal therapy, aesthetic dentistry and oral surgery. She strives to create a positive experience for her patients in the dental setting.

Outside of work, Adeline enjoys spending time with her sister, singing, exploring nature, watching moviesand experiencing different cuisines.

She believes the joy that comes with creating a healthy and beautiful smile is one of the intangible rewards of being a dentist. Giving back to her community is one of Adeline’s highest priorities as she aims to work together with her colleagues at Blackwood Dental to enable clients to achieve better oral health outcomes. Since teeth are an aesthetic and functional part of an individual, she hopes to empower her patients with a smile they are proud to wear.

Adeline is looking forward to seeing you at your next dental visit!


Olivia Keates BOH (Adel)

Oral Health Therapist

Olivia is an Oral Health Therapist who graduated from the University of Adelaide in 2008. Since graduating Olivia has worked in Perth and Kalgoorlie for the past 14yrs in private practices.
Olivia specialises in both fields of dental hygiene and therapy and is very passionate about the prevention of oral diseases, her philosophy is keeping teeth for life.
Olivia is passionate about general health and enjoys spending time outdoors exploring and travelling with her Husband, Daughter and 2 dogs.
Looking for whiter teeth? Olivia can assist,
as well as detect and treat periodontal disease.


Claire Battersby BOH (Adel)

Oral Health Therapist

We are so grateful to have Claire returning from maternity leave and back in the practice.

Claire is an integral member of our team and has an incredible way with our patients.

She is officially back and looking forward to seeing all her patients.

Claire can also assist with making your pearly whites even whiter or assist with periodontal disease.


Lili Brewster BOH (Adel)

Oral Health Therapist

Lili could not be anymore local! She grew up in Blackwood and attended Blackwood High School, so her community connection is extremely strong!

Her zest for life and natural ability to connect with children, ensures even the youngest of patients enjoys their visit to the clinic. She has a true passion for paediatric dentistry, ensuring that children and their families are given the right tools for achieving healthy teeth for life.

Lili strives to create a calm, welcoming environment, in which those with dental anxiety are well supported.

Lili loves forming empathetic patient relationships to reduce dental anxiety and increase patient confidence. For Lili, knowing she is having a positive impact on a patient’s oral health and life is extremely rewarding.