Dr. Patrick Shanahan BDSc(WA) Dip PH(Syd) is a dentist and Oral Health Consultant. His particular interest and experience is in the Aged Care, Mental Health, Aboriginal Health, General Practice and Disability sectors. He is also the 
Developer and Founder of Denta-Med Products and Chairman of Oral Care Australia Pty Ltd
2019 - 2023 Established the Inaugural Primary Health Care Oral Health Providers Association (WA) Inc. to contract services to Aged Care, Mental Health and Community organisations.
2016 Victoria's leading Comprehensive Cancer Centre, Peter MacCallum - Dental Oncology Unit Endorsed Denta-Med as the preferred oral hygiene agent - for both preventative & symptomatic relief (of xerostomia)
2004 - 2012 Dr. Shanahan developed the inaugural Medicare Chronic Disease Dental Scheme programs for General Practice, Mental Health, Disability and Aboriginal Health
1998 - 2003 Dr. Shanahan was appointed Oral Health Consultant to WA’s largest aged care group
1988 - 1997 Dr. Shanahan achieved an inaugural (WA) operated Commonwealth funded nursing home program to achieve better oral health outcomes; He contracted services to 30 Aged Care Facilities throughout WA  *1998 the program was terminated, due to a change in government funding (disappointingly, nothing replaced it)
1986  Dr. Shanahan resigned from Public Health Service to develop his own programs to assist nurses, doctors, and the medically compromised to achieve better oral health outcomes
1985 Diploma in Public Health University of Sydney. Thesis subject; Towards an Older Australia; Implications for Dentistry
1983 - 1986 Dental Public Health Research Officer, WA Public Health. His key research project was ‘Unmet Dental Treatment Needs of the Aged in WA'
1961 - 1982 Clinical dentistry - private practice