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Year : 2020  |  Volume : 12  |  Issue : 7  |  Page : 19-23

Exposure of methacrylate from acrylic dust generated by removable orthodontic appliance fabrication in Surabaya, Indonesia

Department of Health, Faculty of Vocational Studies, Universitas Airlangga, Surabaya, Indonesia

Correspondence Address:
Sianiwati Goenharto
Department of Health, Faculty of Vocational Studies, Universitas Airlangga, Srikana 65, Surabaya 60286.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jioh.jioh_82_19

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Aims and Objectives: The finishing and polishing of removable orthodontic appliances can produce acrylic dust containing methyl methacrylate, which is potentially prejudicial to health. The aim of this study was to determine the average amount of acrylic dust produced by the finishing and polishing processes involved in removable orthodontic appliance fabrication and the associated risk factors. Materials and Methods: This descriptive observational study constituted samples of 93 orthodontic appliances (62 upper orthodontic plates and 31 lower orthodontic plates) manufactured by sixth semester students of the Dental Technology Study Program, Universitas Airlangga, Surabaya, Indonesia, between February and May 2016, which satisfied the criteria. The amount of acrylic dust produced was calculated on the basis of the difference between the weight of an orthodontic plate after acrylic processing and the weight after finishing and polishing. Data were tested statistically using Kolmogorov–Smirnov test, Mann–Whitney test, and Hosmer–Lemeshow test with P value < 0.05 and performed with the Statistical Package for the Social Sciences (SPSS) software, version 24.0. Results: The results showed that the average acrylic dust produced in the fabrication of a removable orthodontic appliance was 1.23g (range, 0.29–3.54g). The average acrylic dust produced by the upper orthodontic plate (1.34g) was greater than that of the lower plate (0.94g). Results also showed that the finishing process produced more acrylic dust (0.94g) than the polishing process (0.27g). Conclusion: The acrylic dust produced by the removable orthodontic appliance production process undertaken by sixth semester Dental Technology students at Universitas Airlangga, Surabaya, Indonesia, had an average weight of 1.21g. The finishing process produced more acrylic dust in comparison to the polishing process. Students’ skill in producing orthodontic appliances and orthodontic plate design represents a major factor affecting the amount of acrylic dust produced.

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