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ADA Image Dr Scott Davis
Dr Scott Davis Chair/President & Board Director

With experience in remote dental practice, academia and private practice, Dr Scott Davis has worked as a consultant prosthodontist, with a primary interest in implant rehabilitation and full mouth reconstruction. Scott has been involved with the ADA for many years, including as a NSW Branch Executive Council member, a Federal Council member, and a Federal Executive member. He is a member of several Federal ADA Committees including the DIME and Constitution and Policy Committees, plus Chair of the Specialist Working Group.

ADA Image Dr Chris Sanzaro
Dr Chris Sanzaro Deputy Chair/Vice-President & Board Director

Elected to Federal Executive in 2020, Dr Chris Sanzaro has been a Federal Councillor since 2014. Chris served as ADATas Branch President in 2014-15 and has been elected to the ADATas Council since 2010. He is currently a member of the Constitution and Policy committee, and Chairs the Recent Graduates Advisory Panel and Employed Dentists Working Panel for the ADA. Chris is a Graduate of the AICD, and Fellow of the ADI, PFA and ICD. Chris was previously a member of the Audit and Risk committee, and currently runs a private dental practice in Launceston, Tasmania.

ADA Image Dr Angie Nilsson
Dr Angie Nilsson Board Director

Nominated to the then-Federal Council by Queensland and NSW, Dr Angie Nilsson served in Tasmania as Branch President. The Clinical Director of Oral Health for Northern NSW, Angie is currently Chair of the Constitution and Policy Committee as well as serving on the Audit and Risk committee and several committees and working groups. She is a fellow of the International College of Dentists and the Pierre Fauchard Academy, and a graduate of the Australian Institute of Company Directors.

ADA Image Dr Andrew Gikas
Dr Andrew Gikas Board Director

A dentist in private and public practice in Melbourne, Dr Andrew Gikas holds a clinical teaching position at the University of Melbourne, in addition to being a VMO at the Alfred Hospital. After various regional group and committee roles, Andrew was elected to the ADA Victorian Branch Council in 2012, serving as Branch President in 2016-17. A member of the Dental Education and Training Committee, and the Nominations and Remunerations Committee, Andrew was elected to Federal Council in 2020 and Federal Executive in 2022.

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A/Prof. Sharon Liberali AO Board Director

The Director and Senior Consultant of the Special Needs Unit, Adelaide Dental Hospital, Associate Professor Sharon Liberali is the Program Convenor for Geriatric and Special Needs Dentistry at the Adelaide Dental School, and Principal Dentist at Health Partners Dental. In 2019, Sharon received a Distinguished Service Award from the Federal ADA and in 2020 from the SA Branch of the ADA. In 2023, she was recognised in the King’s Birthday Honours receiving an Officer of the Order of Australia and listed on the COVID-19 Honour Roll.

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Mr Peter Day Board Director

The first independent member of the then-ADA Federal Council, Mr Peter Day has held numerous governance and management positions in mining, manufacturing, food, and financial and regulatory services industries across Australia and internationally. Peter's career has included board positions on significant ASX-listed companies such as Alumina, Centro and Ansell Limited, as the Deputy Chairman of ASIC, the regulator for companies in Australia and a position on the Takeovers Panel, the independent body that considers takeover disputes in Australian public companies.

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Mrs Susan Petrellis Board Director

Managing Director of innovation strategy firm Bounce Partners, Mrs Susan Petrellis BSc. MBA GAICD is a non-executive director in public and private organisations operating in the STEM environment. Her international career has operated in the pharmaceutical, dental, medical, biotechnology and food sectors, with governance interests lying in corporate development and transformation, innovation, ESG and digital.