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37 3 2016 laser SIROLaser Blue wins Red Dot Award Frequent dental scaling to reduce Infection risk after knee replacement Genetics affecting obesity’s impact on Periodontal disease progression The SIROLaser Blue handpiece has once again won over international design experts. It was presented the Red Dot Award in the category “Life Science and Medicine” for, according to the jury, “the elegant feel of its flowing, elongated shape and stainless steel finish”. This is the sec- ond design prize this year for the Dentsply Sirona Instruments laser for surgical dentistry. In Febru- ary, the SIROLaser Blue handpiece was present- ed with the iF Design Award. The Red Dot Award is an internationally recognized quality seal that has been awarded to products, design concepts and communication designs since 1954. This year, 41 jury members (made up of independent designers), design professors and specialist journalists assessed a record number of 5,214 products from 57 nations in 31 categories. The award ceremony was held on 4 July 2016, at the Red Dot Gala in the Aalto Theater in Essen, Germany. Source: Dentsply Sirona Oral bacteria that enter and spread through the bloodstream have been found to cause about 10 per cent of peri-prosthetic joint infections after total knee arthroplasty (TKA). A team of Asian researchers analysed 1,291 patients who had undergone TKA between 1999 and 2002 and needed revision sur- gery within five years after the initial oper- ation owing to a peri-prosthetic infection. They compared these cases to a control group of age- and sex-matched TKA pa- tients who had not had any peri-prosthet- ic infection. The researchers concluded that regular dental scaling can improve oral health and thereby reduce the risk of transient bacteraemia caused by oral bac- teria. The study, titled “Frequent dental scaling is associated with a reduced risk of periprosthetic infection following total knee ar- throplasty: A nationwide population-based nested case–control study”, was published online in the PLOS ONE journal on 23 June. Studies have indicated that individuals with a high body mass index are more prone to devel- oping periodontal disease than other people are. Being overweight or obese might also negatively affect one’s response to nonsurgical periodontal therapy. In order to evaluate whether specific patterns of interleukin-1 (IL-1) gene variants, which are known to affect periodontitis severity, influenced the association between obesity and subsequent periodontitis progression, DNA was collected from 292 men (aged 29–64 at entry) in a recently published study. The participants had dental and anthropometric endpoints collected over multiple examinations, approximately every three years for up to 27 years. The analysis showed significant interactions between IL-1 genetic variations and obesity-re- lated traits in predicting periodontal disease progression. Participants who were both obese and IL-1-positive were 70 per cent more likely to experience periodontal disease progression than those without these risk factors. The study was conducted at the Boston University Henry M. Goldman School of Dental Medicine in collabora- tion with Interleukin Genetics. The study, titled “Influence of obesity on periodontitis progression is conditional on IL-1 inflammatory genetic vari- ation,” was published online on 19 August in the Journal of Periodontology, an official publication of the American Academy of Periodontology. © Wichy/Shutterstock.co m © Ocskay Mark/Shutterstock.com 32016