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University of Aberdeen research directly led to a change in the Scottish Dental Contract which has doubled the number of children receiving fissure sealants. The University of Aberdeen's Health Services Research Unit (HSRU) conducted a randomised trial looking at the effectiveness of a strategy to improve adoption of fissure sealants — known to reduce decay in children's teeth but which were rarely administered. The trial examined a fee-for-service intervention in primary dental care where each dentist received £6.80 per tooth sealed. It demonstrated that fee payment was associated with an increase in fissure sealant placement in dental primary care. This led to a change in the Scottish Dental Contract which now includes a fee-for-service for the placement in fissure sealants in children over 11 years old. From 2008, guidance documents from the NHS Department of Health and the Scottish Dental Clinical Effectiveness Programme have recommended placement of fissure sealants on children above 11-years-old. These guidance documents are provided to some 10,000 dentists throughout the UK. Since the introduction of the fee, over 37,000 children per year in Scotland have received fissure sealants. This is double the number of children receiving sealants compared to before the policy change and equates to some 150,000 children receiving the sealants since January 2008.
The claimed impact, as defined by REF guidance, is therefore on public policy and services; practitioners and professional services; society and economically.
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.
"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.
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.
Life-threatening bacterial endocarditis occurs on previously damaged cardiac valves. Established dental practice has been to administer antibiotics to patients who are at risk. This practice has been linked with increased antibiotic resistance, which represents one of the greatest threats to public health.
Researchers at the University of Manchester (UoM) evaluated the evidence for this practice by undertaking a high quality systematic review (initially published 2004). The review has informed multiple international guidelines. Publication of the NICE guideline led to a fall in the unnecessary prescription of antibiotics from 10,727 to 2,292 per month, an approximate annual saving of £174,580.
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.
Patients expect and deserve safe health care, but research by the University of Glasgow Dental School in 2000-2005 identified that routine instrument decontamination processes used in UK dental practice were inadequate, with potential for residual body fluid and tissue contamination, leaving patients at risk of infection. These studies led to major changes to decontamination guidance and its implementation, resulting in major improvements to decontamination facilities, procedures and quality assurance in UK dental practice. In Scotland, the government invested £19 million in funding to upgrade equipment and premises, develop updated guidance and to train 7,893 dental staff through NHS Education for Scotland (NES). By December 2012, it was mandatory for all Scottish dental practices to comply with the new standards (`Glennie compliance') to reduce the risk of cross-infection with blood- and tissue-borne diseases such as HIV, hepatitis B, hepatitis C and variant Creutzfeldt-Jakob disease (vCJD).
The Hall Technique offers non-invasive treatment for decayed baby teeth, sealing the decay under preformed metal crowns and thus avoiding injections and drilling. At Dundee, we brought the technique to the dental profession's attention, providing an evidence base showing: increased treatment acceptability for children, parents and dentists; improved outcomes over standard fillings; economic viability; and reduced general anaesthesia requirement. The Hall Technique is now taught and used throughout the UK, recognised Europe-wide, and increasingly adopted in Australasia and the Americas. Its inclusion in national guidelines and a Cochrane review have driven change from invasive surgical to non-invasive biological management of tooth decay in children.
Our research showed that powered rotation oscillation toothbrushes were superior to manual toothbrushes for the removal of plaque and reduction of gingivitis. This information has had impacts on national public policy, on commerce and on society.
The UCL Dental Public Health Group have made a significant contribution to oral health policy in the UK and internationally through their research on oral health inequalities and the need for a reorientation of dental services towards a more evidence based, integrated preventive approach addressing common risks for oral diseases and other chronic conditions. Our work has influenced local national oral health policies and the development of clinical practice guidelines to reduce oral health inequalities and provide the opportunity for dental professionals to prevent both oral and systemic disease.