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, and laser dentistry. 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.

Geoff’s wife Deborah is also involved in the administration of the practice. They have two children and enjoy golf and fishing in their spare time. Golf jokes are always welcome!

A member of the Australian Dental Association, SA Branch.

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 also a member of the Australian Dental Association.

Dr Brooks is the newest member of the Blackwood Dental Team and we look forward to you meeting him as he offers some amazing welcoming specials

Dr Brandon Hoe

Visiting Invisalign Consultant 

BDS (ADEL) MBA Grad Dip (Adel)

Dr. Brandon Hoe is the principal dentist and founder of Gentledentistry and Nobrace Centre in Adelaide. He will be the Visiting Invisalign Consultant at Blackwood Dental.

In the early years after graduation from Dentistry at Adelaide University Brandon toyed with the idea of specialisation but preferred the variety of procedures available in general practice. He went on then to obtain a Grad Dip and also an MBA.

His patients often comment that he is a meticulous perfectionist who offers the highest level of skills along with a warm and friendly personality. You will be impressed with his composure, confidence and friendly demeanour and you will receive the highest level of care, respect, and efficiency. He listens to his patients concerns and needs and is sensitive to each patient’s individual requests.

Outside of Dentistry Brandon serves on the Ekera Dental Clinical Advisory board providing strategic dental industry advice in many areas.

He has two sons and a beautiful wife and is a keen sportsman participating in Club Tennis and basketball weekly.

Brandon is also fluent in Malaysian, Cantonese and English.

Dr Ranu Acharya


Dr Ranu is pleased to be working out of Blackwood dental, to offer patients from the southern suburbs and Adelaide hills a convenient location, and reduced waiting lists for appointments, all patients will be returned to their referring dentists for their ongoing care.

Dr Ranu Acharya is an exceptional oral health care professional with over 15 years of experience in Australia and abroad. She has worked in public hospitals, private practices, and prestigious universities across Victoria, Queensland, and South Australia.

After achieving her qualification of Primary Dental Sciences in 2018, she completed her Doctor of Clinical Dentistry with distinction in Periodontics from Griffith University in 2022, publishing groundbreaking research on dental implant survival rates in the International Journal of Biomedical and Advance Research (IJBAR). These achievements underscore her commitment to advancing dentistry and her expertise in periodontics.

Dr Acharya is highly skilled in periodontics and has expertise in managing periodontal disease, soft tissue grafting, hard tissue augmentation procedures, and implant dentistry. She is a compassionate practitioner who utilises cutting-edge technologies to optimise periodontal health and provide personalised treatment.

Dr Acharya is a distinguished achiever with numerous qualifications and memberships in esteemed dental associations, including the Australian Dental Association (ADA), Australian Society of Periodontology (ASP), Australia and New Zealand Academy of Periodontists (ANZAP), and International Team of Implantology (ITI).

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.

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. 


Dr Shaun Goh from Go Orthodontics is our visiting Orthodontist.