Left Right Nineteen dd Slideshow Take a look at several significant dental artifacts, including chairs, practice photos and a unique advertisement. Click the arrow to start the slideshow. Nineteen dd Dentist in Action Dr. William R. Hamilton graduated from the University of Toronto in 1890. Here he is with the latest in equipment, including a tank of nitrous oxide that was mixed every day before beginning the day’s treatments. Nineteen dd McLaren Chair This chair was manufactured in Toronto around 1880. It was able to tilt backward and forward and had an adjustable head rest. The best part was the price: a whole $30. Nineteen dd New Dental Building In 1896, a large new dental school was built on College Street to address the problem of shortage of space. The dental college was owned by Ontario dentists and operated by them through the RCDSO Board of Directors as trustees. Nineteen dd Monday Morning Special Full sets of teeth, regularly $8 to $12, on special for only $3.00. Nineteen dd New Dental Practice In 1886, Dr. Jack Allison Marshall stands in his new operating room with patient and dental assistant in Belleville, Ontario. Nineteen dd The Initiation Dr. J. W. Ivory is initiated into dentistry sometime around 1890 complete with a “thunder mug” on his head and the special grip handshake.