Melbourne Dental School - Research Publications
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ItemQuality appraisal of economic evaluations done on oral health preventive programs-A systematic review(WILEY, 2020-09)OBJECTIVES: If economic evaluations are to be used by decision makers, such evidence has to be robust so that the relevant policy maker use them. This study was undertaken with the purpose of identifying economic evaluations done on oral health preventive programs and to assess the standard of economic evidence in this field. METHODS: A systematic search was conducted using four major electronic databases in order to search for economic evaluations done on oral health preventive programs. This included economic evaluations that were published between January 1975 and May 2018 on preventive interventions for periodontal disease, oral cancer screening, and other common oral health conditions. To avoid duplications with previous studies, for dental caries interventions, this review included studies from April 2012 and May 2018. "Guidance to undertaking reviews in health care," developed by York University, was used to assess the quality of reporting in the evaluations, using which strengths and shortcomings were identified. RESULTS: A total of 2026 records were initially found. After title and abstract screening, and elimination by full text review, 33 relevant economic evaluations were identified. Majority of the economic evaluations included were conducted on dental caries prevention; a few were done on oral cancer screening, periodontal disease, and general preventive dentistry (health promotion, oral hygiene etc.). CONCLUSIONS: In comparison to the findings observed in previous reviews, there has been improvements in the quality of reporting in economic evaluations. Several areas still in need for improve were identified (e.g., productivity costs, currency and prices, and generalizability issues).
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ItemSelf-assessed impact of oral health on the psychological well-being and depressive symptoms of older adults living in Melbourne(WILEY, 2020-09)OBJECTIVES: This study aimed to investigate oral health-related factors affecting the self-assessed psychological well-being (PW) and depressive symptoms of independent-living Australians aged 79 years and over living in the community in metropolitan Melbourne. METHODS: The Melbourne Longitudinal Studies on Healthy Aging (MELSHA) program was used as the data source in this study and includes data on the health and well-being of older participants. The MELSHA baseline data collection occurred in 1994, the current study used data from the 2008 data collection and included 201 participants, who remained in the study. Data were analyzed using multiple linear regression (MLR) analysis with a stepwise procedure to identify the variables that accounted for a significant proportion of the variance in the participants' PW scores. RESULTS: Present findings indicate that oral health may play a significant mediating role in PW through maintaining a presentable and acceptable physical appearance. Some 16.4 percent of participants reported feeling concerned about their dental appearance, either "Sometimes," "Often," or "Very often." Multivariate analysis showed significantly influences on PW positive and negative affect scores (P < 0.0001); and depressive symptoms (P < 0.0001) by participants' dentition status, enjoyment of meals, self-reported feeling of concern about the appearance of the mouth, social activity and self-assessment of general health. Final models explained 17.8, 20.1, and 24.6 percent of the variance of PW positive, negative affect scores, and depressive symptoms, respectively. CONCLUSIONS: Oral health, specifically the appearance of the mouth and dentition, plays a significant role in the PW of older Melbournians. Future cross-sectional and longitudinal studies are indicated to raise awareness on the changes required to improve the quality of life of the older population.
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ItemEconomic evaluations in water-fluoridation: a scoping review(BMC, 2020-04-16)BACKGROUND: Community water fluoridation (CWF) is considered one of the 10 greatest public health achievements of the twentieth century and has been a cornerstone strategies for the prevention and control of dental caries in many countries. However, for decision-makers the effectiveness and safety of any given intervention is not always sufficient to decide on the best option. Economic evaluations (EE) provide key information that managers weigh, alongside other evidence. This study reviews the relevant literature on EE in CWF. METHODS: A systematic database search up to August 2019 was carried out using MEDLINE, EMBASE, Cochrane Library, LILACS, Paediatric Economic Database Evaluation and National Health Service Economic Evaluation Database. The review included full economic evaluations on CWF programs, written in English, Spanish or Portuguese. The selection process and data extraction were carried out by two researchers independently. A qualitative synthesis of the results was performed. RESULTS: Of 498 identified articles, 24 studies met the inclusion criteria; 11 corresponded to cost-benefit analysis; nine were cost-effectiveness analyses; and four cost-utility studies. Two cost-utility studies used Disability-Adjusted Life Years,, one used Quality-Adjusted Tooth Years, and another Quality-Adjusted Life Years. EEs were conducted in eight countries. All studies concluded that water fluoridation was a cost-effective strategy when it was compared with non-fluoridated communities, independently of the perspective, time horizon or discount rate applied. Four studies adopted a lifetime time horizon. The outcome measures included caries averted (n = 14) and savings cost of dental treatment (n = 4). Most of the studies reported a caries reduction effects between 25 and 40%. CONCLUSION: Findings indicated that CWF represents an appropriate use of communities' resources, using a range of economic evaluation methods and in different locations. These findings provide evidence to decision-makers which they could use as an aid to deciding on resource allocation.
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ItemDental opioid prescribing rates after the up-scheduling of codeine in Australia(NATURE PORTFOLIO, 2020-05-21)The misuse of pharmaceutical opioids is a major public health issue. In Australia, codeine was re-scheduled on 1 February 2018 to restrict access; it is now only available on prescription. The aim of this study was to measure the change in dental opioid prescriptions, one year before and after the codeine re-scheduling in Australia and to assess dental prescribing rates of opioids for 2018 by population and by clinician. Data was extracted for dental opioids for the year immediately prior and after the codeine up-schedule (1 February 2017-31 January 2019) from the publicly-available national prescription database (Pharmaceutical Benefits Scheme). Descriptive statistics, T-tests and odds ratios were used to identify significant prescribing differences. Codeine, codeine/paracetamol, oxycodone and tramadol use increased significantly the year after the codeine restriction than the previous year (13.8-101.1%). Australian dentists prescribed 8.6 prescriptions/1,000 population in 2018, with codeine/paracetamol accounting for most prescriptions (96%). The significant increase in opioid prescribing highlights that Australian dentists may be contributing to the misuse of pharmaceutical opioids. Educational efforts should be targeted at the appropriate use of opioids and patient selection. Dentists should be added to the prescription monitoring system SafeScript so they can make informed decisions for patients who are potentially misusing opioids.