This article describes the development of the Dental Department at Princess Margaret Hospital, Perth, Western Australia from its beginnings with the appointment of the first Honorary dentist in 1910. It details its state today as a comprehensive unit in which all dental specialities are represented and capable of handling any clinical or teaching duties which may present. Princess Margaret Hospital is a large general teaching children's hospital of three hundred beds which handles one third of child admissions in the State. In addition, virtually all congenital abnormalities and conditions requiring specialized unit treatment are admitted. Into this hospital the Dental Department has become fully integrated over the past thirteen years.