| 21. |
- Ahlgren, Camilla, et al.
(författare)
-
Contact Allergy to Gold in Patients with Oral Lichen Lesions.
- 2012
-
Ingår i: Acta Dermato-Venereologica. - : Medical Journals Sweden AB. - 1651-2057 .- 0001-5555. ; 92:2, s. 138-143
-
Tidskriftsartikel (refereegranskat)abstract
- The aetiology of oral lichen lesions is obscure. In this study the frequency of contact allergy to gold in 83 patients with oral lichen lesions was compared with that in two control groups, comprising 319 age- and gender-matched patients with dermatitis selected from files and 83 clinically examined dermatitis patients. All patients were tested epicutaneously with gold sodium thiosulphate. The two control groups tested were under examination for a tentative diagnosis of allergic dermatitis not related to oral problems. The frequency of contact allergy to gold was 28.9% in the patients with oral lichen lesions, 18.2% in patients selected from files, and 22.9% in the clinically examined control patients. The difference in frequency between patients with oral lichen lesions and those taken from files was statistically significant.
|
|
| 22. |
- Ahlgren, Camilla, et al.
(författare)
-
Contact allergy to gold is correlated to dental gold
- 2002
-
Ingår i: Acta Dermato-Venereologica. - : Acta Dermato-Venereologica. - 1651-2057 .- 0001-5555. ; 82:1, s. 41-44
-
Tidskriftsartikel (refereegranskat)abstract
- Questionnaire studies have indicated that patients with dental gold will more frequently have contact allergy to gold. This study aimed at investigating the relationship between contact allergy to gold and the presence and amount of dental gold alloys. A total of 102 patients were referred for patch testing because of suspicion of contact allergy. Patch tests were performed with gold sodium thiosulphate 2% and 5%. The patients underwent an oral clinical and radiological examination. Contact allergy to gold was recorded in 30.4% of the patients, and of these 74.2% had dental gold (p=0.009). A significant correlation was found between the amount of gold surfaces and contact allergy to gold (p=0.008), but there was no statistical relationship to oral lesions. It is concluded that there is a positive relationship between contact allergy to gold and presence and amount of dental gold alloys.
|
|
| 23. |
- Ahlgren, Camilla, et al.
(författare)
-
The necessity of a test reading after 1 week to detect late positive patch test reactions in patients with oral lichen lesions
- 2014
-
Ingår i: Clinical Oral Investigations. - : Springer. - 1432-6981 .- 1436-3771. ; 18:5, s. 1525-1531
-
Tidskriftsartikel (refereegranskat)abstract
- Establishing the clinical relevance of contact allergy to dental materials in patients with oral lichen lesions (OLL) may be difficult, and tests are often read only on day 3 or day 4; also, concentration of the tested allergens may vary. Several studies on dermatitis patients have shown that additional positive patch test reactions can be found after day 4. Therefore, the aim of the present study was to analyse the frequency of late positive reactions to potential allergens in patients with OLL. Eighty-three of 96 consecutive patients with biopsy-verified OLL were patch-tested with a recently developed lichen series. The patches were removed after 48 h and reactions read 3 and 7 days after application. A total of 129 contact allergies were found, and 26 (20.2 %) of the allergic reactions in 23 patients were seen on day 7 only. The 25.2 % increase in positive test reactions with an additional reading on day 7 in addition to day 3 was statistically significant. Metals were the substances with the highest frequency of late positive reactions. Patients with OLL cannot be considered properly investigated with regard to contact allergy, unless the testing has been performed with mandatory readings on day 3 (or day 4) and day 7. Late patch test readings are crucial in order to elucidate the role of contact allergy to dental materials in the aetiology of OLL.
|
|
| 24. |
|
|
| 25. |
|
|
| 26. |
- Alves da Silva, Catarina, et al.
(författare)
-
Contact dermatitis in children caused by diabetes devices
- 2022
-
Ingår i: Contact Dermatitis. - : Wiley. - 0105-1873 .- 1600-0536. ; 87:5, s. 406-413
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Insulin pumps and glucose monitoring devices improve diabetes mellitus control and enhance patients' quality of life. However, a growing number of adverse cutaneous reactions related to the use of these devices have been reported. Objective: To investigate the culprits of localized contact dermatitis in paediatric patients with diabetes caused by insulin pumps and glucose monitoring devices. Methods: Retrospective analysis of 15 paediatric patients patch tested as part of a clinical investigation for skin reactions associated with insulin pumps and glucose monitoring devices. Results: Seven patients had positive patch test reactions to isobornyl acrylate (IBOA) and five had positive reactions to benzoyl peroxide (BP). Positive patch test reactions to materials from the glucose sensor and/or insulin pump were seen in 10 of the 15 patients. Three had positive reactions to adhesive remover wipe from Smith and Nephew Remove and four had reactions to EMLA plaster. Conclusion: A high share of patients showed positive reactions to IBOA and/or their medical devices (insulin pumps or glucose devices). A third of patients showed positive reactions to BP. The presence of additional unidentified allergens cannot be excluded, highlighting the importance of access to a full description of the chemical composition of the devices.
|
|
| 27. |
- Andersen, Flemming, et al.
(författare)
-
Reduced content of chloroatranol and atranol in oak moss absolute significantly reduces the elicitation potential of this fragrance material
- 2015
-
Ingår i: Contact Dermatitis. - : Wiley. - 0105-1873. ; 72:2, s. 75-83
-
Tidskriftsartikel (refereegranskat)abstract
- BackgroundOak moss absolute, an extract from the lichen Evernia prunastri, is a valued perfume ingredient but contains extreme allergens. ObjectivesTo compare the elicitation properties of two preparations of oak moss absolute: classic oak moss', the historically used preparation, and new oak moss', with reduced contents of the major allergens atranol and chloroatranol. Patients/materials/methodsThe two preparations were compared in randomized double-blinded repeated open application tests and serial dilution patch tests in 30 oak moss-sensitive volunteers and 30 non-allergic control subjects. ResultsIn both test models, new oak moss elicited significantly less allergic contact dermatitis in oak moss-sensitive subjects than classic oak moss. The control subjects did not react to either of the preparations. ConclusionsNew oak moss is still a fragrance allergen, but elicits less allergic contact dermatitis in previously oak moss-sensitized individuals, suggesting that new oak moss is less allergenic to non-sensitized individuals.
|
|
| 28. |
- Andersson, Thomas, et al.
(författare)
-
In vivo testing of the protection provided by non-latex gloves against a 2-hydroxyethyl methacrylate-containing acetone-based dentin-bonding product
- 2000
-
Ingår i: Acta Dermato-Venereologica. - : Medical Journals Sweden AB. - 0001-5555 .- 1651-2057. ; 80:6, s. 435-437
-
Tidskriftsartikel (refereegranskat)abstract
- In dentistry, allergic contact dermatitis to acrylates and allergic contact urticaria to latex are important occupational hazards. There is a need to identify, non-latex gloves which are suitable for dental work but at the same time provide adequate protection against acrylate monomers. In a previous study, a new open-chamber system was used for testing the in vivo protection of 6 different gloves against an acrylate-containing ethanol-based dental adhesive. A nitrile glove gave the best protection among the gloves suitable for dental work. In the present study, the test model was used to investigate the in vivo protection of 7 non-latex gloves against a dental bonding product containing 2-hydroxyethyl methacrylate (2-HEMA) in an acetone/water vehicle. Eight 2-HEMA-allergic patients participated. Two neoprene gloves gave the best protection. The protection of the poorest glove was comparable to that of the positive control (no glove). The study produced in vivo data useful in the implementation of individual preventative measures against contact allergy to acrylates.
|
|
| 29. |
- Antelmi, Annarita, et al.
(författare)
-
4,4′-Thiobis(2-tert-butyl-5-methylphenol), an antioxidant in medical devices that may cause allergic contact dermatitis
- 2023
-
Ingår i: Contact Dermatitis. - 0105-1873. ; 89:2, s. 103-106
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Antioxidants in medical devices, added to protect polymers or adhesives, may also cause contact dermatitis in some individuals. Objectives: To present data on sensitization to 4,4′-thiobis(2-tert-butyl-5-methylphenol), an antioxidant detected in some types of medical devices, for six patients that experienced eczematous reactions to different medical devices. Methods: Patch testing with 4,4′-thiobis(2-tert-butyl-5-methylphenol), 1% pet was performed. Gas chromatography-mass spectrometry (GC-MS) was used for identification of 4,4′-thiobis(2-tert-butyl-5-methylphenol) in different medical device products. Results: Six patients with contact allergy to 4,4′-thiobis(2-tert-butyl-5-methylphenol) also had relevant contact allergic reactions to medical devices containing the antioxidant. The presence of the antioxidant in products was detected using GC-MS analysis. Conclusions: The antioxidant 4,4′-thiobis(2-tert-butyl-5-methylphenol) may cause allergic contact dermatitis after exposure to different medical devices.
|
|
| 30. |
|
|
