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This study aimed to describe orthodontic treatment patterns of children in Australia.

Tissue imaging is crucial in oral cancer diagnostics. Imaging techniques such as X-ray imaging, magnetic resonance imaging, optical coherence tomography (OCT) and computed tomography (CT) enable the visualization and analysis of tissues, aiding in the detection and diagnosis of cancers. A significant amount of research has been conducted on designing OCT probes for tissue imaging, but most probes are either heavy, bulky and require external mounting or are lightweight but straight. This study addresses these challenges, resulting in a curved lightweight, low-voltage and compact handheld imaging probe for oral soft tissue examination. To the best of our knowledge, this is the first curved handheld OCT probe with its shape optimized for oral applications. This probe features highly compact all-fiber optics with a diameter of 125 μm and utilizes innovative central deflection magnetic actuation for controlled beam scanning. To ensure vertical stability while scanning oral soft tissues, the fiber was secured through multiple narrow slits at the probe's distal end. This apparatus was encased in a 3D-printed angular cylinder tube (15 mm outer diameter, 12 mm inner diameter and 160 mm in length, weighing < 20 g). An angle of 115° makes the probe easy to hold and suitable for scanning in space-limited locations. To validate the feasibility of this probe, we conducted assessments on a multi-layered imaging phantom and human tissues, visualizing microstructural features with high contrast. [ABSTRACT FROM AUTHOR]

Phosphine (PH3) is a methyl bromide alternative with the potential to control surface pests of New Zealand avocados as a pre-export disinfestation treatment. 'Hass' avocado fruit were treated with PH3 (as ECO2FUME® (2% PH3, 98% CO2 (w/w); Cytec Industries Inc.)). at 500, 750 and 1,500 ppm for 24, 48 and 72 h at 5–6 °C, along with vials containing mould mites (Tyrophagus communis) and greenhouse thrips (Heliothrips haemorrhoidalis). Fruit were then stored at 5 °C for three weeks, external quality assessed, and internal fruit quality assessed after ripening at 20 °C. PH3 treatments had no impact on external fruit quality, nor on skin colouration, and only minor increase in softening compared to control at 24 h, but not 48 or 72 h. Complete (100%) mortality was achieved for thrips at all PH3 concentrations for 48 h. However, only ∼50% mould mite mortality was achieved at the highest PH3 concentration of 1,500 ppm for 72 h; although this treatment did provide a significant reduction in rots and internal disorders. This initial study demonstrates that longer-duration treatments and higher PH3 concentrations improves fruit quality compared with controls, mainly by reducing rots. These treatments fully controlled thrips but provided only partial control of mould mites. [ABSTRACT FROM AUTHOR]

Objective: Accurate assessment of child oral health is important for guiding economic evaluations and informing healthcare decision‐making. Early Childhood Oral Health Impact Scale (ECOHIS‐4D) is a preference‐based instrument that measures the oral health‐related quality of life of young children. The aim of this study was to compare the utility scores of ECOHIS‐4D and Child Health Utility Index (CHU‐9D), against an oral health indicator to evaluate which utility score corresponds better with the oral health indicator. Method: The ECOHIS‐4D and CHU‐9D were applied to 314 parent/child dyads from preschools in a primary healthcare setting in Perth, Western Australia. Four parameters were used to assess which instrument corresponds better with the oral health indicator (decayed, missing and filled teeth score‐dmft score): (i) discrimination, the ability to discriminate between different clinical severity groups, (ii) external responsiveness, how much the utility values relate to the changes in dmft scores, (iii) correlation, the association between the two instruments and the related dimensions and (iv) differences in the utility values across the two instruments. Results: Most participants (81%) were 2–6 years old, and nearly 50% had a dmft score <3. ECOHIS‐4D demonstrated a superior ability to differentiate between dmft severity groups and respond to changes in dmft scores. A significant weak correlation was observed between dmft and ECOHIS‐4D (−0.26, 95%, CI −0.36 to −0.15) compared to a non‐significant very poor correlation between dmft and CHU‐9D (0.01, 95% CI −0.12 to 0.10). The utility scores of the two instruments had relatively good agreement towards good health and weak agreement towards poor health. Conclusions: ECOHIS‐4D, the oral health‐specific instrument, is more sensitive in assessing children's oral health‐related quality of life than the generic CHU‐9D. Thus, ECOHIS‐4D is more appropriate for utility estimates in economic evaluations of oral health‐related interventions and resource allocation decision‐making. [ABSTRACT FROM AUTHOR]

Objectives: In celebration of the journal's 50th anniversary, the aim of the study was to review the whole collection of Community Dentistry and Oral Epidemiology (CDOE) publications from 1973 to 2022 and provide a complete overview of the main publication characteristics. Methods: The study used bibliometric techniques such as performance and science mapping analysis of 3428 articles extracted from the Scopus database. The data were analysed using the 'Bibliometrix' package in R. The journal's scientific production was examined, along with the yearly citation count, the distribution of publications based on authors, the corresponding author's country and affiliation and citation count, citing source and keywords. Bibliometric network maps were constructed to determine the conceptual, intellectual and social collaborative structure over the past 50 years. The trending research topics and themes were identified. Results: The total number of articles and average citations has increased over the years. D Locker, AJ Spencer, A Sheiham and WM Thomson were the most frequently published authors, and PE Petersen, GD Slade and AI Ismail published papers with the highest citations. The most published countries were the United States, United Kingdom, Brazil and Canada, frequently engaging in collaborative efforts. The most common keywords used were 'dental caries', 'oral epidemiology' and 'oral health'. The trending topics were healthcare and health disparities, social determinants of health, systematic review and health inequalities. Epidemiology, oral health and disparities were highly researched areas. Conclusion: This bibliometric study reviews CDOE's significant contribution to dental public health by identifying key research trends, themes, influential authors and collaborations. The findings provide insights into the need to increase publications from developing countries, improve gender diversity in authorship and broaden the scope of research themes. [ABSTRACT FROM AUTHOR]

Objective Method Results Conclusion Oral health is often overlooked in ageing health issues, despite its impact on overall health and quality of life. Older Australians, especially those in rural and remote areas, face difficulties accessing oral health services. The aim of the study was to investigate the factors that contribute to financial barriers to accessing dental services among the ageing population in Australia in relation to their residential location.The study included a weighted sample of Australian adults aged 65 years and over from a population‐based survey called the National Study of Adult Oral Health (NSAOH) conducted in 2017–18. Descriptive analysis was conducted and generated cross‐tabulation tables to investigate the distributions of the outcome, exposure and covariates, including Sex, Education level (the highest level of education), Equivalised household income, Dental insurance, Concession card ownership, Difficulty paying a dental bill and last dental visit. Blinder‐Oaxaca decomposition counterfactual analysis was used to explore the potential impact of a person's residence on their financial difficulty accessing dental services.The findings showed that 26.2% (95% CI: 24.3–29.3) of major city residents and 30.1% (95% CI: 26.9–33.3) of rural residents avoided or delayed dental visits due to cost. The decomposition analysis indicated that 53.8% of the disparities in the prevalence of avoided or delayed dental visits due to cost were explained by the selected variables, while 46.2% remained unexplained. The explanatory variable with the largest contribution was difficulty paying a $200 dental bill, accounting for 62.4% of the differences, followed by dental insurance, last dental visit and equivalised household income, which explained 42.1%, 20.8% and 14.9% of the differences, respectively.Regional/remote populations experience more financial barriers to accessing dental care than major city populations and the identified factors explain a significant proportion of these disparities. Based on the study findings, recommendations include expanding public dental service coverage, evaluating concession card mechanisms and advocating for regular dental visits to mitigate disparities in dental care access. [ABSTRACT FROM AUTHOR]