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2017 (English)In: Contact Dermatitis, ISSN 0105-1873, E-ISSN 1600-0536, Vol. 77, no 4, p. 224-230Article in journal (Refereed)
Abstract [en]
BACKGROUND: Toothpastes have widespread use in the population, and contain flavours used to give a pleasant and often minty aroma. Flavours are prevalent allergens in toothpastes, and adverse reactions often present as perioral dermatitis or stomatitis. l-Carvone, a mint flavour found in spearmint oil, is one of these allergens. There are few studies on contact allergy to l-carvone, and some of them have indicated a positive relationship with oral lichenoid lesions. OBJECTIVES: To qualitatively and quantitatively investigate the presence of l-carvone in commercially available toothpastes on the Swedish market. METHODS: l-Carvone in 66 toothpastes was analysed with straight-phase high-performance liquid chromatography. The product labels were studied with regard to limonene. RESULTS: l-Carvone was found in 64 of 66 toothpastes (concentration: 0.00005-0.35%). In 10 of these, the concentration exceeded 0.1%. Higher concentrations of l-carvone were found if limonene was listed on the label. CONCLUSION: The majority of toothpastes on the Swedish market contain l-carvone, but the concentration hardly relates to the advertised flavour or labelled ingredients. It is hitherto unknown whether the found concentrations are sufficient for induction of contact allergy in individuals with healthy oral mucosa or in those with oral lichenoid lesions or other mucosal disease.
Place, publisher, year, edition, pages
John Wiley & Sons, 2017
Keywords
contact allergy, contact dermatitis, high-performanceliquid chromatography, L-carvone, limonene, oral lichen planus, oral lichenoid lesions, toothpastes
National Category
Dentistry
Identifiers
urn:nbn:se:mau:diva-15837 (URN)10.1111/cod.12803 (DOI)000409110100005 ()28524256 (PubMedID)2-s2.0-85028733948 (Scopus ID)23457 (Local ID)23457 (Archive number)23457 (OAI)
2020-03-302020-03-302024-06-18Bibliographically approved