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ABSTRACT: Background
Environmental sustainability has been brought into the limelight due to the global climate crisis. This crisis is driven by human activities and even the healthcare sector is no exception. Within dentistry, orthodontics is a large global market; hence, the use of post-orthodontic retainers has a significant environmental footprint. The aim of this study was to determine the environmental sustainability of post-orthodontic retention using Hawley and Essix retainers.Materials and methods
A comparative life-cycle assessment (LCA) was carried out to compare the environmental impact of both retainers. All inputs and outputs were accounted for using the Ecoinvent database, v3.7.1, and openLCA software. Sixteen impact categories were used to determine their environmental burden.Results
Of the 16 impact categories, the Hawley had a greater environmental burden than the Essix retainer in 12 categories. The Hawley's most significant contributors to its impact values are factory manufacturing and in-house production, with an average of 41.45% and 52.52%, respectively. For the Essix, the greatest contributor is factory manufacturing, with an average of 64.63%. However, when factoring in the lifespan of the retainers, the Essix would have a greater environmental impact than the Hawley retainer.Limitations
This study employed a comparative LCA. There were also assumptions made, but these were supported by research.Conclusions
On the basis of the evidence gathered in this study, Hawley retainers are more environmentally sustainable than Essix retainers. These results would better enable clinicians to factor in the environmental impact and make informed decisions on the choice of retainer type.
SUBMITTER: Da Tan TY
PROVIDER: S-EPMC10941639 | biostudies-literature | 2024 Apr
REPOSITORIES: biostudies-literature
Da Tan Timothy You TY Duane Brett B Hussein Ahmed A Samsonova Anna A Sizun Gwenola G Shakerdi Loujin L Taqi Roqaya R Wolfram Samuel S Ziaeefard Nazanin N Sagheri Darius D
European journal of orthodontics 20240401 2
<h4>Background</h4>Environmental sustainability has been brought into the limelight due to the global climate crisis. This crisis is driven by human activities and even the healthcare sector is no exception. Within dentistry, orthodontics is a large global market; hence, the use of post-orthodontic retainers has a significant environmental footprint. The aim of this study was to determine the environmental sustainability of post-orthodontic retention using Hawley and Essix retainers.<h4>Material ...[more]