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Updated: Feb 16, 2026

Customizing a Cryolite Glass Prosthetic Eye
Published on: October 31, 2019
[Analysis and prevention of dust pollution caused by 5 common prosthetic materials]
Xiang-Wen Yang1, Bin Wei, Cao-Yun Zhu
1Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology. Shanghai 200011, China.
Purpose:
To analyze and evaluate dust pollution in prosthodontic clinic and make proposal for reasonable protection.
Methods:
This study analyzed the particle size, element composition and dust concentration of 5 materials which were commonly used in dental restorations (veneering ceramics, cobalt-chromium alloy, photosensitive plastic, hard base resin, advanced artificial teeth) by using scanning electron microscopy (SEM), X-ray energy dispersive spectrometer(EDS) and dust concentration laser tester, in order to assess the effects of prosthodontic dust posed on medical staff health and put forward reasonable suggestions for prevention and control of dust pollution.
Results:
The particle size of veneering ceramics, cobalt-chromium alloy, photosensitive plastic, hard base resin and advanced artificial teeth was (2.15±3.00), (33.78±24.33), (7.78±11.86), (31.16±44.35) and (28.45±39.21)μm, respectively. The time weighted average respirable dust concentration of veneering ceramics was 0.393 mg/m2 which was beyond the scope of national security.
Conclusions:
Dust pollution is serious in prosthodontic clinic to which we should pay more attention and take appropriate prevention measures.
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