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492 2016 implants PETA urges orthodontic society to Move event from SeaWorld 18-year-old suffers from Inexplicable tooth loss Increase in caries rates after Fluoridation cessation People for the Ethical Treatment of Animals (PETA), the world’s largest animal rights organi sation, has called upon its followers to join a cam paign urging the American Association of Ortho dontists (AAO) to relocate the opening ceremony of its 2016 Annual Session from SeaWorld Orlan do. According to PETA, SeaWorld, which owns all but one of the orcas held captive in the US, has a long history of mistreating animals and forcing them to perform unnecessary tricks for entertain ment. As part of the campaign, PETA further high lighted that at least 38 orcas have died to date on SeaWorld’s watch. In addition, nearly all the orcas at SeaWorld are suffering from advanced dental trauma as a result of biting the metal gates and concrete sides of their small tanks. In order to prevent orcas from dying of infection owing to fractured teeth, marine parks often drill holes into the pulp cavity of broken or worn teeth to open the cavity enough to be flushed and cleaned daily, for the rest of the animal’s life. This is often done without anaesthetics. Therefore, the animal ad vocacy organisation has called upon its members and followers to ask the AAO to move its event away from SeaWorld, by writing e-mails or post ing to AAO’s social media accounts. Smiling has become a difficult task for 18-year- old Linzi Grant from England: the teenager has been suffering for years from a dental nightmare. Starting when she was 14 years old, her teeth have become so unstable that even sneezing can cause them to fracture. In addition to the constant pain, blood and puss often occur in the resulting gaps, prompting nausea, continuous discom fort and repeated infections as well as fre quent stays in hospital. Doctors assume the reason for this is her diabetes type 1 and recommend complete extraction. To finance the expensive surgical treatment which may cost up to 20,000 BP, Linzi has reached out to the public and con tacted the media. In addition, she is looking for an alternative diagno sis and treatments. Find out more via www.gofundme.com\letlinzismileagain. Source: ZWP online Community water fluoridation is a matter of de bate around the globe. While it is used widely in North America, many European countries have stopped the practice. Owing to a lack of contem porary research on fluoridation cessation, howev er, researchers in Canada have now investigated its impact on dental caries experience. In Canada, community water fluoridation has been in place since 1945. In a recently published study, researchers at the University of Calgary therefore compared changes in caries experi ence in schoolchildren in Calgary with those in Edmonton, which has fluoridated its community water since 1967. In examining datasets from the school years of 2004/2005 and 2013/2014, the researchers observed an overall increase in primary tooth decay in both cities, but the ab solute magnitude of the increase was greater in Calgary. In their analysis, the researchers fo cused on smooth tooth surfaces, where fluoride is most likely to have an impact. The study, titled “Measuring the short-term impact of fluoridation cessation on dental caries in Grade 2 children us ing tooth surface indices,” was published online on Feb. 17 in the Community Dentistry and Oral Epidemiology journal ahead of print. © Martin Valigursky/Shutterstock.com ©somchaij/Shutterstock.com © Vladim ir G jorgiev/Shutterstock.com 4922016