Allergic Contact Dermatitis of Styrenic Thermoplastic Elastomers and Latex Sheets in Humans

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Kallaya Yanpiset
Poohglin Tresukosol
Rosalarin Santhawachart
Jeeraphat Jantarat
Supatchai Sutimuntanakul
Choltacha Harnirattisai
Theeralaksna Suddhasthira
Anon Chaisuriyathepkul

Abstract

Objective: to compare the incidence of allergic contact dermatitis between styrenic thermoplastic elastomers (S-TPEs) and latex sheets in patients scheduled for endodontic treatment by patch testing.


Material and method: A total of 100 subjects were tested with the substances in S-TPEs group (S-TPEs sheet, Styrene isoprene styrene-SIS, Styrene butylene styrene-SBS, dye powder) and latex group (latex sheet, thiuram-mix, mercapto-mix, mercaptobenzothiazole, zinc diethyldithiocarbamate-ZDEC, zinc dibutyldithiocarbamate-ZDBC). The reactions were evaluated at 48 and 96 hours after application of the test materials to the skin of the upper arm.


Results: For the S-TPEs group, none of the subjects showed positive allergic reactions to S-TPEs sheet and its compositions at 48 and 96 hours. For the latex group, seven subjects (7%) had positive allergic reactions to latex sheet at 48 hours, and one (1%) at 96 hours. One subject (1%) showed reactions to thiuram-mix, mercapto-mix, and mercaptobenzothiazole at 48 and 96 hours, one subject (1%) reacted to thiuram-mix, and one subject (1%) reacted to ZDEC at 96 hours. Upon comparison between positive allergic reactions of S-TPEs and latex sheets, a significant difference was demonstrated at 48 hours (p<0.05), but not at 96 hours.


Conclusion: S-TPEs sheet did not cause allergic contact dermatitis, while latex sheet did in a number of subjects. 

Article Details

How to Cite
1.
Yanpiset K, Tresukosol P, Santhawachart R, Jantarat J, Sutimuntanakul S, Harnirattisai C, Suddhasthira T, Chaisuriyathepkul A. Allergic Contact Dermatitis of Styrenic Thermoplastic Elastomers and Latex Sheets in Humans. M Dent J [Internet]. 2016 Dec. 22 [cited 2024 May 4];37(1):47-63. Available from: https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/180026
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Original articles

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