Utilisation of Dental Services of Older People in Australia: An Economic Explanatory Model Based on Cost and Geographic Location

Distribution of Australian dental practices in relation to residential aged care facilities: A geographic analysis

OBJECTIVES

Limited access to oral health services contributes to poor oral health in institutionalised older adults. The objective of this study was to map and analyse the distribution of residential age-care facilities (RACFs) in relation to dental practices across Australia.

METHODS

Age-care data were sourced from the Australian Institute of Health and Welfare. The data were categorised according to the Australian Bureau of Statistics remoteness index in each state and territory, defined by a geographic coordinate system. The structure of remoteness area data was integrated into RACF data using a geographic information system. Buffer analysis in QGIS was employed to calculate the buffer distance surrounding RACFs by identifying dental practices relative to a measuring distance.

RESULTS

In total, Australia had 2718 RACFs and 7379 dental practices (both private 95.5% and public 4.5%). In all States, more than a third of metropolitan RACFs were within accessible reach of a private practice (ranging from 37% of RACFs in NSW to 55% in WA). However, proximity to public clinics was low, ranging from only 4% (WA) to 9% (QLD). More than one-fifth of metropolitan RACFs in NSW, QLD, WA and ACT (ranging from 20% to 24%) were not within accessible proximity of either a public or private dental clinic/practice. While more than 70% of RACFs in regional and remote Australia are reasonably close to dental practices, areas with inadequate access exist, with the highest percentage recorded in WA (6%).

CONCLUSION

Ensuring an equitable distribution of dental practices relative to RACFs is crucial in bridging the service access gap in underserved areas.

Sociodemographic factors impacting the spatial distribution of private dental clinics in major cities of Peoples Republic of China

OBJECTIVES

Investigate the geographical distribution of private dental practices in major Chinese cities and analyze the variables influencing this distribution.

METHODS

This study used Python to extract various types of Point of Interest (POI) data spanning from 2016 to 2022 from the AutoNavi map. A 1km*1km grid was constructed to establish the study sample. Additional spatial pattern data, including nighttime lighting, population, and air quality data, were integrated into this grid. Global Moran's I index was used to analyze the spatial autocorrelation. The spatial lag model was used to explore the influencing factors of private dental practice distribution.

RESULTS

This study reveals a specific clustering pattern for private dental practices in major Chinese cities. The primary influencing factors include nighttime lights, population density, and housing prices, suggesting that dental practices are typically concentrated in highly developed regions with dense populations and high housing costs. Additionally, we discovered that patterns vary across different metropolises, with the most pronounced clustering patterns and substantial inequalities found in the most developed areas.

CONCLUSIONS

This study establishes that factors such as regional development and population density positively correlate with private dental practice. Additionally, it reveals a strong mutual correlation in the clustering of dental practices, which does not show a substantial correlation with public resources. Finally, it suggests that the spatial heterogeneity pattern implies a rising necessity to tackle inequality issues within urban areas as economic development progresses.

Anesthetic-, irrigation- and pain-free dentistry? The case for a femtosecond laser enabled intraoral robotic device

By leveraging ultrashort pulse laser and micro-electromechanical systems (MEMS) technologies, we are developing a miniaturized intraoral dental robotic device that clamps onto teeth, is remotely controlled, and equipped with a focusing and scanning system to perform efficient, fast, and ultra-precise laser treatments of teeth and dental restorative materials. The device will be supported by a real-time monitoring system for visualization and diagnostic analysis with appropriate digital controls. It will liberate dentists from repetitive manual operations, physical strain and proximity to the patient's oro-pharyngal area that potentially contains infectious agents. The technology will provide patients with high-accuracy, minimally invasive and pain-free treatment. Unlike conventional lasers, femtosecond lasers can ablate all materials without generating heat, thus negating the need for water irrigation, allowing for a clear field of view, and lowering cross-infection hazards. Additionally, dentists can check, analyze, and perform precise cutting of tooth structure with automatic correction, reducing human error. Performing early-stage diagnosis and intervention remotely will be possible through units installed at schools, rural health centers and aged care facilities. Not only can the combination of femtosecond lasers, robotics and MEMS provide practical solutions to dentistry's enduring issues by allowing more precise, efficient, and predictable treatment, but it will also lead to improving the overall access to oral healthcare for communities at large.

Hospitalization for Oral Health-Related Conditions of the Australian Ageing Population: Two Decades of Analysis

The burden of oral health care increases among older people, with a profound challenge in utilising dental services in primary dental care settings. This study aimed to analyse two decades of nationwide hospital separation patterns due to oral health-related conditions among older people. Ageing population data were obtained from the Australian Bureau of Statistics, including people aged 65 years and older. All principal diagnoses of oral health conditions (ICD-10-AM) were analysed in this study. The hospitalisation data included all separations of older people for the financial years 1998–1999 to 2018–2019. A total of 205,461 hospital separations were recorded for older people over a period of twenty-one years. More than 60% of these separations were collectively attributed to dental caries, disorders of teeth and supporting structures, diseases of the jaws, diseases of the pulp and periapical tissues. However, the average rate of separations per 10,000 people due to dental caries was the highest among the dental conditions (8.68). Furthermore, the remaining oral health-related conditions predict an annual percentage increase in the rate that would compromise their oral health quality of life. Dental caries and its sequela seem to be the leading cause for oral health-related hospital admissions in Australia for people aged 65 and older. This could be an indicator of the inadequacy of disease management in the primary dental care setting.