Depth of cure and microhardness of a new composite vs. bulk-fill composites
Yükleniyor...
Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
AMBER PUBLICATION
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Aim: To compare the depth of cure of new composite with bulk fill resin composites through using Vickers hardness profiles (VHN). Materials and Methods: New composite and four bulk fill composite materials were examined: Tetric N Ceram (R) Bulk Fill, X-tra base, Compon, Filtek Posterior Bulk Fill, Sonic FiIITM. Eight specimens of each material type were prepared in teflon molds which contained a slot of dimensions (8 mm x 4 mm x 2 mm), and a top plate. The molds were irradiated from one end. All specimens were stored at 37 degrees C for 24 h, before measurement. The Vickers hardness was measured as a function of depth of material, at 1 mm intervals. Data were analyzed by one-way ANOVA using Turkey post hoc tests (p=0.05). Results: The maximum VHN ranged from 46.7 to 68.1, whilst the 80% of max. WIN ranged from 374 to 54.5. The depth corresponding to 80% of maximum VHN ranged from 5.5 to 7 mm. This was taken as the depth-of cure. Discussion: In this study, VHN, 80% VHN and depth profile properties of different Bulk Fill resin composites were measured and compared with the new composite by the determination of their VHN/depth profiles. There were statistically significant differences between different bulk fill composite materials in terms of max. VHN and depth of cure, corresponding to 80% of max. VHN. Depth of cure is related to the clinical success of restoration. When a more extensive polymerization and crosslinking occurs,greater VHN results are obtained. According to the manufacturer's claims bulk fill composites can be applied up to 4 mm, or even 5 mm in one time. In general, adequate polymerization along the recommended depth in bulk fill composites is critical to the long-term stability of restorations. According to the results of our research, the manufacturers' claim was approved for these materials. Conclusion: New composite can be cured to an acceptable post-cure depth as Bulk fill resin composites, according to the manufacturers' claims. X-tra base had the greatest depth of cure among the composites examined.
Açıklama
Anahtar Kelimeler
Bulk fill composites, Microhardness, Depth of cure
Kaynak
JOURNAL OF RESEARCH IN MEDICAL AND DENTAL SCIENCE
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
7
Sayı
5
Künye
Cetin, A. R., Hataysal, A. E., Kaplan, T. T., Botsali, M. S. (2019). Depth of Cure and Microhardness of a New Composite vs. Bulk-fill Composites. Journal of Research in Medical and Dental Science, 7(5), 53-59.
