The fungicidal effect of ultraviolet light on impression materials

Hiroshi Ishida, Yukinori Nahara, Mitsuhiro Tamamoto, Taizo Hamada

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


The effects of ultraviolet (UV) light on fungi and impression materials were tested. UV light (250 μW/cm2) killed mostCandida organisms (103 cells/ml) within 5 minutes. UV light (8000 μW/cm2) killed mostC. albicans (107 cells/ml) within 2 minutes of exposure. The effect of UV light on dimensional change and surface roughness of impression materials (irreversible hydrocolloid, agar, and silicone rubber) was tested. The results showed that neither dimensional change nor surface roughness of the impression materials were affected. The results of this study indicate that UV light disinfects impression materials that are contaminated withCandida organisms.

Original languageEnglish
Pages (from-to)532-535
Number of pages4
JournalThe Journal of Prosthetic Dentistry
Issue number4
Publication statusPublished - 1991 Apr

ASJC Scopus subject areas

  • Oral Surgery


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