15 OUT THERE
ROMAN ROT A study of 303 skulls from a Dorset burial site dating back to Roman times (c. 200-400 AD) found far fewer cases of moderate to severe periodontitis compared to today. Our forebears appeared to enjoy improved dental health with about fi ve per cent of 20 to 60-year-olds suff ering gum disease. The fi ndings point to the role played by risk factors like smoking and diabetes in determining susceptibility to progressive periodontitis in modern populations.
NANO TEETH Tiny nanodiamonds invisible to the naked eye could be used as an improved treatment for the jaw disease osteonecrosis. US and Japanese researchers say the tiny spherical gems could promote bone growth and improve the durability of dental implants by delivering proteins into the mouth.
TOXIC BREATH Research shows remedies for bad breath to be notoriously varied, including the 18th century favourite child’s urine. Mass market mouthwashes appeared in the 1880s with some doubling as burns treatments, antiseptics, dandruff cures and even fl oor cleaner. Source: BDJ
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Stumped? The answer is at the bottom of the page NAME THAT BITE CROSSWORD
ACROSS 1. Rapier (5) 5. Large body of water (5) 8. Water storage facility (9) 9. Thin silk net (5) 10. Stir to react (7) 12. Pretends (6) 13. Auto workshop (6) 16. Forfeit (7) 19. Applaud (5) 20. Make law (9) 21. In photography, _____ point (5) 22. Blind (5)
DOWN
1. St Nicholas of Myra (colloq.) (5) 2. Position of teeth with closed jaws (9)
3. Brand name luting cement (7) 4. Most distant end (6) 6. Brand name temporary fi lling material (5)
7. Fibre sending sense data (5) 11. Relief from pain (9) 14. Collection of pus within tissue (7) 15. Brand name compomer restorative (6)
16. Brand name dental cement (4-1)
17. Neuroscience drug, loses pound from direction of root tip (5)
18. Orthodontic device (5) See answers online at
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PHOTO: STEVE GSCHMEISSNER/SCIENCE PHOTO
NAME THAT BITE? SEM of ragworm mouth
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