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)

Practice Principal and 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 Raj Singh BDS 

Dental Surgeon

Dr Raj Singh is a well-known Adelaide cosmetic and implant dentist with an extraordinary eye for aesthetic perfection and a devotion to compassionate, gentle dental care. 

He understands visiting the dentist is not everyone’s ideal way to spend their time, but he will change your mind about that and prove that regular oral maintenance is not as tedious as you think.

Dr Raj loves what he does and you will notice this at your visit. He clearly explains what he is doing and the reasoning behind it, so you can join him on your dental journey. At Blackwood Dental we value our patients and our dentists (and our staff of course) which makes for one very happy environment, come and see for yourself.

Dr Raj completed a Masters of Social Work from Flinders University in 2008, helping him to better understand his patients and their individual needs.  


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 with a qualification in Nutrition 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 John Jenner and Dr Shaun Goh from Go Orthodontics are our visiting Orthodontic Team.