Contact allergy in the mouth: Diversity of clinical presentations and diagnosis of common allergens relevant to dental practice
University Department of Dermatovenereology, Sestre milosrdnice University Hospital Center, Zagreb, Croatia.Acta clinica Croatica (Impact Factor: 0.34). 12/2011; 50(4):553-61.
Delayed-type hypersensitivity reaction or type IV allergic reaction can cause different oral manifestations. They can be localized or diffusely visible on oral mucosa and usually appear 24-72 hours after antigen input. The antigens that cause this type of reaction are mostly external, such as contact allergens (particularly metals) and drugs. It has been shown that the most common oral manifestations are cheilitis, gingivitis, stomatitis, perioral dermatitis, burning mouth syndrome, lichenoid reaction and orofacial granulomatosis. The most important part of diagnosis is the use of patch testing that indicates contact allergic reaction to an allergen. The results of patch testing have shown that the most common proven allergens are gold, nickel, mercury, palladium, cobalt, acrylate, etc. Although connection between specific clinical manifestations and positive patch test results was not always found, patch testing is necessary to prove contact hypersensitivity. Therefore, in patients with oral symptoms, allergic hypersensitivity to dental components has to be considered.
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ABSTRACT: Inadequate intensity of the polymerization light source can compromise the quality and longevity of dental composite restorations. In order to maintain optimal strength of polymerization devices, regular control of polymerization units is necessary. The aim of this study was to compare the accuracy of two radiometers in the measurement of light intensity of photopolymerization devices concerning the time point of measurement. Light intensity measurements of 16 halogen and 8 LED curing lights were performed using three different devices at the beginning as well as 10 and 40 seconds after the start of illumination. Two were handheld radiometers: Bluephase meter (BM) and Cure Rite (CR), while an integrating sphere (IS) represented the reference device. Data were statistically analyzed using Friedman's test and Wilcoxon signed-rank test (p < 0.05). The values at the beginning and after 10 seconds measured by BM were significantly higher than the measurements by IS, whereas CR showed higher values after 10 and 40 seconds. Both commercial radiometers tended to overestimate the light intensity of LED and halogen curing units when compared to the reference device. The time point of measurement influences the output value. The heating of radiometers was proposed as a possible explanation for the inaccuracy.Acta clinica Croatica 06/2013; 52(2):173-80. · 0.34 Impact Factor
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ABSTRACT: Recurrent aphthous stomatitis (RAS) is a disorder characterized by recurrent ulcerations limited to the oral mucosa. Many specialists and researchers in the domain of oral medicine and other fields do not recognize a single disease in RAS, but several pathologic states with similar clinical characteristics. Even though the real cause is unknown, there are some predisposing factors such as anemia caused by the lack of iron, folic acid and vitamin B, neutropenia, local trauma, emotional stress, metabolic disorders, hormonal disorders and chronic diseases, which cause immunodeficiency. This disease can appear in three clinical forms: small aphthous ulcers, large aphthous ulcers and herpetiform aphthous ulcers. The treatment of this type of disorder involves local or systemic use of corticosteroids, immunostimulants and vitamin therapy. Due to the association of aphthous ulcers with various other diseases, cooperation among multiple fields of medicine and a multidisciplinary approach are necessary.Acta clinica Croatica 06/2013; 52(2):213-21. · 0.34 Impact Factor
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