دورية أكاديمية
Development of caries adjacent to composite restorations after exposure to dentifrices with different fluoride concentrations
| العنوان: | Development of caries adjacent to composite restorations after exposure to dentifrices with different fluoride concentrations |
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| المؤلفون: | Dayse Andrade Romão, Guilherme José Pimentel Lopes de Oliveira, José Ivo Limeira dos Reis, Lucineide de Melo Santos |
| المصدر: | Revista de Odontologia da UNESP, Vol 44, Iss 2, Pp 113-117 |
| بيانات النشر: | Universidade Estadual Paulista. |
| المجموعة: | LCC:Medicine LCC:Dentistry |
| مصطلحات موضوعية: | Dental caries, dentifrices, dental materials, Medicine, Dentistry, RK1-715 |
| الوصف: | Objective To evaluate the development of recurrent caries after exposure to fluoride dentifrices with different concentrations. Material and method: 48 samples of bovine incisors (4x4mm2) were exposed to pH cycling for 7 days before the preparation of the cavities (2mm deep). The samples were restored with a microhybrid resin composite. Then, the samples were exposed to thermal cycling (350 cycles) and they were randomly allocated into 4 treatment groups (n = 12): Group A - non-fluoridated dentifrice (negative control); Group B - 500 ppm dentifrice; Group C - 750 ppm dentifrice; group D - 1100 ppm dentifrice (positive control). The samples were treated with solutions of each dentifrice (9.6 ml water/1.6 g dentifrice) for 60 seconds and then were immersed in demineralizing (3 h) and remineralizing (2 h) solutions 3 times a day. Next, the samples were immersed in a remineralizing solution for 18 hours. Then, the blocks were sectioned for examination of the length of the outer caries lesion, using polarized light microscopy. The ANOVA parametric test complemented by the Tukey test with a confidence level of 95%, were used in the statistical analysis. Result: A smaller lesion length was observed in the group treated with the fluoride concentration of 1100 ppm F, but there were no differences between toothpastes with fluoride concentrations of 500 and 750 ppm F. Conclusion: The use of fluoride dentifrices (1100 ppm) reduces the development of caries adjacent to dental restorations. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Portuguese |
| تدمد: | 1807-2577 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772015000200113&lng=en&tlng=en; https://doaj.org/toc/1807-2577 |
| DOI: | 10.1590/1807-2577.1014 |
| URL الوصول: | https://doaj.org/article/182db63bec82412284cbce38659a6fd9 |
| رقم الأكسشن: | edsdoj.182db63bec82412284cbce38659a6fd9 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 18072577 |
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| DOI: | 10.1590/1807-2577.1014 |