When the School Dental Service began in 1921-22 its officers extracted more teeth than they filled. In every year since the proportion of teeth extracted has been smaller, and last year, according to the annual report of the Dental Hygiene Division, for every 100 teeth filled only 12.9 were extracted. These figures included both permanent and deciduous teeth; for permanent teeth alone the ratio is 0.8 extractions to 100 fillings. The practice now is to extract only those teeth which are “unsaveable."
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https://paperspast.natlib.govt.nz/newspapers/KCC19381114.2.41
Bibliographic details
King Country Chronicle, Volume XXXII, Issue 4716, 14 November 1938, Page 8
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82Untitled King Country Chronicle, Volume XXXII, Issue 4716, 14 November 1938, Page 8
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