Melbourne Dental School - Research Publications

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    Perceptions of general practitioners towards managing dental presentations in Australia: a qualitative study
    Biezen, R ; Leong, A ; Teoh, L (CSIRO PUBLISHING, 2024)
    Background Patients presenting with dental pain are common in general practice, despite dental infections being most appropriately managed with dental treatment to address the cause of the infection. Although antibiotics are not appropriate for the management of localised toothache without signs of systemic spread, general practitioners (GPs) often prescribe antibiotics and analgesics for the management of dental pain. The aim of this study was to explore GPs' perceptions and management of dental presentations in Australia. Methods Twelve semi-structured interviews were conducted with GPs across Victoria, Australia, between October 2022 and January 2023. Data were thematically analysed. Results The study found that dental pain was the most common presenting complaint for patients attending general practice with a dental problem. Five major themes were identified in this study: knowledge, beliefs about capabilities, emotion, environmental context and resources, and social influences/social professional role and identity. In terms of knowledge and capabilities, GPs would advise patients to seek dental care, as they are aware that antibiotics would not resolve the underlying issue. Challenges for GPs included limited training in oral and dental treatment, as well as emotions, such as patient anxiety and phobia resulting in patients seeking dental care through a GP rather than a dentist. Barriers due to the context, such as access to dental care, long waiting lists within the public dental system and cost, were some of the reasons patients present to general practice rather than a seeing a dentist. Furthermore, issues that influenced GPs' antibiotic prescribing included patients' expectations for antibiotics to treat their dental pain, as well as dentists advising their patients to attend their GP for antibiotics prior to dental treatment. Conclusions This study identified factors that influenced GPs' management of patients with dental conditions. To address these issues, it is imperative to develop interventions addressing patients' knowledge around oral health, as well as providing improved access to dental care for these patients.
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    To prescribe or not to prescribe? A review of the Prescribing Competencies Framework for dentistry
    Teoh, L ; Park, JS ; Moses, G ; Mccullough, M ; Page, A (ELSEVIER SCI LTD, 2023-10)
    OBJECTIVES: Dentists in Australia are the second largest prescriber group, and are generally not formally taught how to prescribe. The objective of this review is to describe the Prescribing Competencies Framework and its relevance to dentistry. DATA: The four-model stage of prescribing by Coombes and colleagues, and the seven competencies within the Prescribing Competencies Framework devised by the Australian National Prescribing Service MedicineWise, are discussed and applied to dentistry. SOURCES AND STUDY SELECTION: Each of the seven competencies are analysed and detailed in the context of clinical dental practice. Competencies 1-5 describe the skillset and tasks required by dentists to safely prescribe, whereas Competencies 6 and 7 describe the clinical environment and recommended resources to support dentists to prescribe safely and effectively. CONCLUSIONS: The Prescribing Competencies Framework provides an overview of safe and effective prescribing. Prescribing is a process, and a separate skillset to clinical dentistry. The process involves information gathering, clinical assessment, effective communication and review of the patient. Access to timely and appropriate resources and relevant electronic sources of health information for clinicians are important to provide the support required for better informed prescribing decisions. The framework describes a patient-centered prescribing process, and ultimately prescribing should be a shared decision between the dentist and the patient. CLINICAL SIGNIFICANCE: Safe and effective prescribing is an integral part of dentistry and dentists are the second largest prescriber group. However, dentists display high rates of inappropriate and unnecessary prescribing, and to minimise errors, the Prescribing Competencies Framework has been established. This article details how the Framework applies to clinical practice dentistry.
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    A retrospective study of drugs associated with xerostomia from the Australian Database of Adverse Event Notifications
    Choo, PJ ; Taing, M-W ; Teoh, L (OXFORD UNIV PRESS, 2022-12-31)
    OBJECTIVES: Xerostomia is a subjective sensation of dry mouth associated with many medications and increases the risk of tooth decay and other oral complications. The aim of this study was to identify unreported medications associated with dry mouth from the Australian Database of Adverse Event Notifications (ADAEN) from the Therapeutic Goods Administration (TGA) in Australia. METHODS: This was a descriptive retrospective study. A request was made to the TGA to provide all reports associated with dry mouth. De-identified reports were provided from the commencement of the database in 1971 until June 2020. Drugs were divided into established drugs that are associated with xerostomia in the primary literature and secondary drugs not reported in the primary literature. KEY FINDINGS: There were 1927 individual case reports for dry mouth associated with medications. Of these, there were 1379 reports of established (primary) drugs and 1481 reports of secondary drugs associated with xerostomia. Dry mouth was found to be associated with many medication classes; analgesics, cardiovascular and gastrointestinal drugs had the greatest number of secondary drugs reported. CONCLUSIONS: A comprehensive list of suspected medications associated with xerostomia has been established. This adds to the growing catalogue of medications associated with dry mouth, where several medications have not previously been identified in the primary literature.
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    Questioning the Accuracy and Interpretation of Dispensed Patterns of Dental Emergency Medicines
    Teoh, L ; Moses, G ; Hollingworth, S ; McCullough, MJ (ELSEVIER, 2021-08)
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    Dental antibiotic stewardship: study protocol for developing international consensus on a core outcome set
    Thompson, W ; Teoh, L ; Pulcini, C ; Williams, D ; Pitkeathley, C ; Carter, V ; Sanderson, S ; Torres, G ; Walsh, T (BMC, 2022-02-04)
    BACKGROUND: Antimicrobial resistance is both a global public health and patient safety problem driven by overprescribing of antibiotic and other antimicrobial drugs. To conserve the effectiveness of antibiotics for future generations, antibiotic stewardship approaches to using them only where appropriate and necessary are advocated. Dentistry accounts for about 10% of antibiotic prescriptions across global healthcare, with 80% not in accordance with guidance in some countries. Core outcome sets enable the results of studies to be compared in order to maximise the value which can be derived from them. The aim of this study is to develop an international consensus on a core outcome set for dental antibiotic stewardship. METHODS: Consensus on outcomes which are critical for inclusion in the core outcome set for dental antibiotic stewardship will be sought through two rounds of a Delphi survey (using the DelphiManager online system) followed by a final online consensus meeting. Thirty participants will be recruited to the Delphi Panel from across three stakeholder groups: ten dentists, ten academics and ten adults experienced with dental antibiotics as either a patient or parent/carer of a patient who has been prescribed them. Consensus will be achieved if more than 70% of the panel agree that an outcome is critical, with at least one from each stakeholder group in agreement. A long-list of candidate core outcomes has been developed from previously published studies with additions recommended by the steering group. The steering group will oversee development of the core outcome set and includes people from around the world with experience of dental antibiotics: clinicians, researchers and people with experience of being prescribed dental antibiotics and/or surviving an antibiotic resistant infection. DISCUSSION: To date, few studies of dental antibiotic stewardship have been published. Internationally, dental antibiotic guidelines and patterns of use vary widely, so a core outcome set is particularly important to facilitate meaningful comparisons between studies. This core outcome set will encompass antibiotic prescribing for both therapeutic indications, such as for people with acute infections, and for prophylactic indications, such as the prevention of distant site infections (like infective endocarditis) following dental procedures.
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    Outcomes to evaluate care for adults with acute dental pain and infection: a systematic narrative review
    Thompson, W ; Howe, S ; Pitkeathley, C ; Coull, C ; Teoh, L (BMJ PUBLISHING GROUP, 2022-02)
    OBJECTIVE: To identify outcomes reported in peer-reviewed literature for evaluating the care of adults with acute dental pain or infection.DesignSystematic narrative review. SETTING/PARTICIPANTS: Primary research studies published in peer-reviewed literature and reporting care for adults with acute dental pain or infection across healthcare settings. Reports not in English language were excluded. STUDY SELECTION: Seven databases (CINAHL Plus, Dentistry and Oral Sciences Source, EMBASE, MEDLINE, PsycINFO, Scopus, Web of Science) were searched from inception to December 2020. Risk of bias assessment used the Critical Appraisal Skills Programme checklist for randomised controlled trials and Quality Assessment Tool for Studies of Diverse Design for other study types. OUTCOMES: Narrative synthesis included all outcomes of care for adults with acute dental pain or infection. Excluded were outcomes about pain management to facilitate treatment, prophylaxis of postsurgical pain/infection or traumatic injuries. RESULTS: Searches identified 19 438 records, and 27 studies (dating from 1993 to 2020) were selected for inclusion. Across dental, pharmacy, hospital emergency and rural clinic settings, the studies were undertaken in high-income (n=20) and low/middle-income (n=7) countries. Two clinical outcome categories were identified: signs and symptoms of pain/infection and complications following treatment (including adverse drug reactions and reattendance for the same problem). Patient-reported outcomes included satisfaction with the care. Data collection methods included patient diaries, interviews and in-person reviews. DISCUSSION: A heterogeneous range of study types and qualities were included: one study, published in 1947, was excluded only due to lacking outcome details. Studies from dentistry reported just clinical outcomes; across wider healthcare more outcomes were included. CONCLUSIONS: A combination of clinical and patient-reported outcomes are recommended to evaluate care for adults with acute dental pain or infection. Further research is recommended to develop core outcomes aligned with the international consensus on oral health outcomes. PROSPERO REGISTRATION NUMBER: CRD42020210183.
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    Patterns of dental antibiotic prescribing in 2017: Australia, England, United States, and British Columbia (Canada)
    Thompson, W ; Teoh, L ; Hubbard, CC ; Marra, F ; Patrick, DM ; Mamun, A ; Campbell, A ; Suda, KJ (CAMBRIDGE UNIV PRESS, 2022-02)
    OBJECTIVE: Our objective was to compare patterns of dental antibiotic prescribing in Australia, England, and North America (United States and British Columbia, Canada). DESIGN: Population-level analysis of antibiotic prescription. SETTING: Outpatient prescribing by dentists in 2017. PARTICIPANTS: Patients receiving an antibiotic dispensed by an outpatient pharmacy. METHODS: Prescription-based rates adjusted by population were compared overall and by antibiotic class. Contingency tables assessed differences in the proportion of antibiotic class by country. RESULTS: In 2017, dentists in the United States had the highest antibiotic prescribing rate per 1,000 population and Australia had the lowest rate. The penicillin class, particularly amoxicillin, was the most frequently prescribed for all countries. The second most common agents prescribed were clindamycin in the United States and British Columbia (Canada) and metronidazole in Australia and England. Broad-spectrum agents, amoxicillin-clavulanic acid, and azithromycin were the highest in Australia and the United States, respectively. CONCLUSION: Extreme differences exist in antibiotics prescribed by dentists in Australia, England, the United States, and British Columbia. The United States had twice the antibiotic prescription rate of Australia and the most frequently prescribed antibiotic in the US was clindamycin. Significant opportunities exist for the global dental community to update their prescribing behavior relating to second-line agents for penicillin allergic patients and to contribute to international efforts addressing antibiotic resistance. Patient safety improvements will result from optimizing dental antibiotic prescribing, especially for antibiotics associated with resistance (broad-spectrum agents) or C. difficile (clindamycin). Dental antibiotic stewardship programs are urgently needed worldwide.
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    Medication-related osteonecrosis of the jaw: Analysing the range of implicated drugs from the Australian database of adverse event notifications
    Teoh, L ; Moses, G ; Nguyen, AP ; McCullough, MJ (WILEY, 2021-07)
    AIMS: Medication-related osteonecrosis of the jaw (MRONJ) is an uncommon but potentially debilitating condition, characterised by nonhealing jawbone, with or without mucosal exposure, in the presence of certain drugs. Those already strongly associated with MRONJ include antiresorptives denosumab and bisphosphonates; however, a growing range of other non-antiresorptive drugs is implicated. The aim of this study was to analyse all case reports of MRONJ submitted to the publicly available Database of Adverse Event Notification from the Therapeutic Goods Administration in Australia. METHODS: The Therapeutic Goods Administration was contacted on 6 January 2020 and asked for all reports containing the words "osteonecrosis of the jaw". This was provided in a spreadsheet of de-identified reports received from commencement of the database in 1971 until 1 October 2019. RESULTS: The drugs implicated in the 419 cases were divided by established drugs with MRONJ and secondary drugs that possibly contribute to MRONJ development. While the majority of cases were associated with denosumab or bisphosphonates (n = 405), there were 14 reports where secondary agents that directly or indirectly affect bone turnover, were also implicated. Some of these secondary drugs, including adalimumab, etanercept, methotrexate and rituximab have previously been associated with MRONJ in published case reports. CONCLUSIONS: This study contributes to the sparse but growing literature associating an increasing number of drugs with MRONJ, and underscores the importance of considering all possible drugs that elevate a patient's MRONJ risk.
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    Where are oral and dental adverse drug effects in product information?
    Teoh, L ; Stewart, K ; Moses, G (WILEY, 2020-12)
    OBJECTIVES: Oral adverse drug reactions are common and are associated with some of our most frequently used medicines. It is important to identify and manage oral adverse drug effects promptly as they not only negatively impact dental health, but also adversely affect medication adherence, clinical outcomes and patient quality of life. This study assessed the location of oral drug-induced adverse effects in the registered drug company product information (PI) of the top 100 most commonly used drugs in Australia as dispensed on the Pharmaceutical Benefits Scheme in 2018. METHOD: Publicly available data on dispensed medicines were accessed from the Australian Commonwealth Department of Health, to determine the top 100 medicines. The drug company PI for each of these drugs was manually searched to find their oral adverse effects. The number, type and location of the oral adverse drug reactions (ADRs) were recorded. KEY FINDINGS: Oral ADRs were commonly found varying in nature and severity. However, they were difficult to find as there is no dedicated section for oral/dental adverse effects in the PI and the section they are in is inconsistently applied. CONCLUSIONS: We recommend that regulatory authorities such as the Therapeutic Goods Administration in Australia create an additional section for oral/dental adverse effects so they are easier to find, which may assist health professionals detect recognise and report adverse drug effects manifesting in the oral cavity.
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    Improvement of dental prescribing practices using education and a prescribing tool: A pilot intervention study
    Teoh, L ; Stewart, K ; Marino, RJ ; McCullough, MJ (WILEY, 2021-01)
    AIMS: Antibiotic resistance is a global public health problem. Around 55% of dental antibiotic prescribing is deemed inappropriate. The aim of this multimodal interventional pilot study was to assess the effect on prescribing of education and a dentally designed prescribing website. METHODS: Twenty-six dentists were recruited for the 12-week study using a pre-post design. Dentists self-recorded their prescribing of antibiotics, analgesics and anxiolytics for 6 weeks. After dentists were provided education and website access, they recorded their prescribing for a further 6 weeks. Four outcomes were measured comparing the prescribing before and after the intervention: (i) the number of inappropriate indications for which antibiotics were prescribed; (ii) the number of prescriptions; (iii) accuracy of the prescriptions according to the Australian therapeutic guidelines; and (iv) the confidence of practitioners towards the prescribing website. Participants were interviewed for feedback. RESULTS: There was a substantial reduction of 44.6% in the number of inappropriate indications for which antibiotics were prescribed after the intervention and a decrease of 40.5% in the total number of antibiotics. Paracetamol with codeine substantially reduced by 56.8%. For the 3 most commonly prescribed antibiotics (amoxicillin, phenoxymethylpenicillin and metronidazole), there was the improvement in the accuracy of the prescriptions ranging from 0-64.7 to 74.2-100%. CONCLUSION: This pilot study showed the intervention of targeted education and the prescribing tool was effective in improving dental prescribing, knowledge and confidence of practitioners, as well as providing an effective antibiotic stewardship tool. This context-specific intervention shows substantial promise for implementation into dental practice.