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Infective endocarditis (IE) is a rare but life-threatening disorder that may arise as a consequence of bacteraemia following invasive procedures such as those of dentistry. Research at the UCL Eastman Dental Institute has detailed the dental causes, prevalence and character of bacteraemia following dental procedures and demonstrated that everyday oral health activities are more likely to be a cause of bacteraemia than invasive dentistry. The research outcomes informed 2008 NICE guidelines that recommended that antibiotic prophylaxis solely to prevent IE should not be given to people at risk of IE undergoing dental and non-dental procedures. This has since caused a 78.6% fall in related antibiotic prescribing, a cost-saving of approximately £4m to the NHS in England and will reduce the threats of fatal anaphylaxis and antibiotic resistance.
This programme of research has, through producing national guidance and improving understanding of professional behaviour, enabled delivery of evidence based practice by dental practitioners in primary care. Its impacts include:
University of Glasgow researchers have played a pivotal role in developing and evaluating the pioneering Childsmile oral health improvement programme. By the late 1990s, more than 50% of 5-year-olds in Scotland showed evidence of dental decay. Since implementation of Childsmile in 2006, this has decreased to 33% and, within this population dental decay in children from the most severely deprived backgrounds has experienced a striking reduction (from 79% to 55%). In 2011, Childsmile was formally incorporated into the primary care dental contract and subsequently in 2012, into the universal child health surveillance programme in Scotland. Since its introduction Childsmile's community-based, preventive approach has revolutionised dental healthcare from birth for all children up to 12 years of age in Scotland resulting in delivery of Childsmile to over 730,000 children per year.
"One in 10 adults in Wales has no natural teeth" (BBC News), "Cost puts off some going to the dentist" (BBC News) and "Overall improvement masks dental health concerns", (British Dental Association, Press Release). These are examples of the sensational headlines which accompanied the publication of the findings of the 2009 Adult Dental Health Survey (ADHS). Researchers at Birmingham's Dental School were key members of the research consortium that carried out both the ADHS as well as the 2003 Child Dental Health Survey (CDHS). The findings from these surveys demonstrated an overall improvement in the nation's oral health but also highlighted areas of inequality. The Government regards these surveys as being of vital importance in providing gold-standard information about the nation's oral health and uses the findings to inform oral health policy in the areas of workforce planning, the provision of, and access to, dental services. The impact of these internationally-leading studies is reflected in Government policy documents and in public debates about the future provision of dentistry.
According to the World Health Organization (WHO), 60% to 90% of school children are affected by tooth decay in industrialised countries 1,2. At low levels, fluoride can reduce tooth decay, but high levels can damage developing tooth enamel in young children. Our research has informed the revised WHO guidelines for monitoring community tooth decay prevention programmes and the UK National Fluoridated Milk Advisory Group's recommendation to increase the amount of fluoride added to school milk. The WHO guidelines are accepted and implemented internationally representing a substantial spread of influence. The recommendation to increase the amount of fluoride in school milk UK-wide is significant, as it will further control and reduce dental caries, especially in deprived areas with non-fluoridated water supply. In addition, we have established better measures of babies' and children's actual and ideal fluoride intake, including better techniques to determine the fluoride content of foods, a protocol for monitoring fluoride intake through urinary excretion, and experimentally-based models to monitor community preventive programmes.
The research reported here has influenced the Scottish Government's Hepatitis C Action Plans and led to changes in practice in services providing sterile injecting equipment to people who inject drugs (PWID) in Scotland and to reductions in risk behaviours for hepatitis C infection among this population. Specifically, there has been an increase in the availability and uptake of sterile equipment used to prepare and inject drugs and a reduction in sharing of such equipment by PWID. More recent research is beginning to indicate that the changes in Government policy and practice are helping to reduce recent (incident) hepatitis C infections among PWID.
Research carried out at Newcastle University in the mid-1990s showed that the dental health profile of older people was changing rapidly: the number of people with no natural teeth was falling and a cohort of people with complex restoration needs had emerged as an important patient group. Those trends were confirmed by analysis of the 1998 Adult Dental Health Survey data, with further changes shown in children in 2003. It became clear to policymakers that substantial reform of NHS dental services in England would be required if the projected future needs of the population were to be met. The 2009 Steele review of NHS dentistry analysed the problems with the existing dental contract, from which a set of recommendations for public policy reform were put forward, which have now been adopted into a prototype NHS dental contract which is currently being piloted.
King's College London (KCL)-led research has both underpinned and helped to develop and test an International Caries Detection and Assessment System (ICDAS) and complementary International Caries Classification and Management System (ICCMS™). Now increasingly accepted and used worldwide, these assessment and management systems are important to clinicians and researchers in detecting, preventively managing and monitoring caries as well as in framing research investigations and evaluating outcomes. They are valuable tools for public health planning and assessing incidence and prevalence of caries (tooth decay), the most ubiquitous disease across the globe. Equally importantly, they now facilitate professional curricula and public education programmes.
A University of Glasgow bovine tuberculosis (bTB) surveillance model was fundamental to new Scottish Government policy on bTB testing. Implemented on 1st January 2012, the policy change used the Glasgow model to indicate which cattle herds can be exempt from routine testing while still maintaining Scotland's Officially bTB Free status. In 2012 this translated to exemption of more than 30% of Scottish herds from routine testing, with an associated government saving of £150,000. The revised policy also provided savings to the Scottish farming industry in the region of £100,000 (2012) and limited the risks of bTB testing to farmers, veterinarians and cattle. The rapid success of the ground-breaking Scottish research-led bTB policy development has been highlighted by the Civil Service as best practice and has been presented to numerous policy audiences including the European Commission, providing the opportunity to transform industry practices and livestock surveillance policy across the UK and beyond.
Our biomarker research and underpinning technologies have commercially impacted upon the global R&D strategies of Unilever, Philips and Mars, realising new market areas for them, resulting in several million GBP invested in related R&D as well as "claim support" for products both in development and already available on shelves. Unilever have adopted biomarker outcomes as endpoints in clinical trials of new products, and Philips and Mars are developing with us saliva-based near-patient diagnostic tests for the human and small animal markets. We have also spun out two SME's: A) Oral Health Innovations (OHI) Ltd has developed online risk and disease analysis software for oral conditions, which was piloted, adopted and launched by Denplan, the UKs largest dental capitation plan operator (accessing 6500 dentists and 1.8 million patients), at the 2013 annual British Dental Association conference; and B) GFC Diagnostics makes SmokeScreen™ a non-invasive, sensitive and objective saliva test developed from our biomarker research at Birmingham University. Both technologies have already provided demonstrable social and commercial impact and given their uptake to date, will also deliver economic, environmental and health impacts.