London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Croydon 1931
[Report of the Medical Officer of Health for Croydon]
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Table XXVIII.
| Summary of Treatment Cases. | |
| Number of cases completed | 21 |
| Number of cases under treatment | 48 |
| Number of cases awaiting treatment | 67 |
| Total | 136 |
| No. of Fixed Appliances. | |
| Inclined planes | 25 |
| Labial and lingual wire arches with or without attachments for moving individual teeth | 10 |
| Metal splints | 6 |
| Total | 41 |
| No. of Movable Appliances. | |
| Plates with screws or pegs | 10 |
| Badcock screw expansion plates | 5 |
| Vulcanite plates with U-retraction wires | 4 |
| Bite plates | 10 |
| Inclined planes | 3 |
| Total | 32 |