Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Southwark, Borough of]
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1968 1967
Extractions:
Of permanent teeth 0.2 0.2
Of temporary teeth 0.9 0.3
Ratio of permanent teeth filled to permanent teeth
extracted 14.9:1 14.6:1
Ratio of temporary teeth filled to temporary teeth
extracted 2.2:1 1.9:1
99