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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.
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.
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.
Research by the UCL Dental Public Health Group has led the international field in the development and validation of quality of life (QoL) measures associated with oral health. Tsakos and Sheiham instigated the development of the Oral Impacts on Daily Performances (OIDP) measure in 1996 followed by the Child Oral Impacts on Daily Life (Child-OIDP) in 2004. Both of these outcome measures have been employed in epidemiological surveys of needs assessment by local health providers in London resulting in enhanced use of resources, better staff training, and improved patient care and health care access. These measures have been employed in the most significant NHS surveys of oral health of adults and children in the UK as well as used by health organisations across the globe. The outcomes of Tsakos' research on oral epidemiology and QoL, together with engagement with policy makers in the UK and Europe, have raised the profile of oral health and is influencing health care policies nationally and internationally.
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:
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.
This case study highlights a body of research around health Research Priority Setting (RPS) that assists policy makers in effectively targeting research that has the greatest potential health benefit. Empirical research on RPS led to organizational changes, and new policies within the Cochrane Collaboration along with new training resources and new RPS exercises. A research gap on inequalities in the risk of oral cancer in the English South Asian population led to an evidence synthesis exercise being carried out by the National Institute for Health and Care Excellence (NICE) and the formulation of a new public health guideline.
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.
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.
School dental screening was a statutory function of the NHS. University of Manchester (UoM) research demonstrated that the national screening programme was ineffective and likely to increase inequalities in health and service utilisation. As a direct result of UoM research, the National Screening Committee recommended that the national programme should stop. This changed Departments of Health policy resulting in new guidance to the NHS, which stopped the screening programme and redirected resources to treatment services for vulnerable groups and prevention programmes. In 2010 in England the costs of a national screening programme were estimated to be £17m per year; money released for reallocation to other dental services.