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Pregled bibliografske jedinice broj: 727213

Časopis

Autori: Par, Matej; Gamulin, Ozren; Marović, Danijela; Klarić, Eva; Tarle, Zrinka
Naslov: Raman Spectroscopic Assessment of Degree of Conversion of Bulk-Fill Resin Composites - Changes at 24 Hours Post Cure
Izvornik: Operative dentistry (0361-7734) 40 (2014), 3; E92-E101
Vrsta rada: članak
Ključne riječi: composite resins; bulk-fill; degree of conversion
Sažetak:
Objective : The aim of this study was to determine degree of conversion (DC) of solid and flowable bulk-fill composites immediately and after 24 hours and investigate the variations of DC at surface and depths up to 4 mm. Materials and Methods : Eight bulk-fill composites (Tetric EvoCeram Bulk Fill [shades IVA and IVB], Quixfil, X-tra fil, Venus Bulk Fill, X-tra Base, SDR, Filtek Bulk Fill) were investigated, and two conventional composites (GrandioSO, X-Flow) were used as controls. The samples (n = 5) were cured for 20 seconds with irradiance of 1090 mW/cm2. Raman spectroscopic measurements were made immediately after curing on sample surfaces and after 24 hours of dark storage at surface and at incremental depths up to 4 mm. Mean DC values were compared using repeated measures analysis of variance (ANOVA) and t-test for dependent samples. Results : Surface DC values immediately after curing ranged from 59.1%-71.8%, while the 24-hour postcure values ranged from 71.3%-86.1%. A significant increase of DC was observed 24 hours post cure for all bulk-fill composites, which amounted from 11.3% to 16.9%. Decrease of DC through depths up to 4 mm varied widely among bulk-fill composites and ranged from 2.9% to 19.7%. Conclusions : All bulk-fill composites presented a considerable 24-hour postcure DC increase and clinically acceptable DC at depths up to 4 mm. Conventional control composites were sufficiently cured only up to 2 mm, despite significant postcure polymerization.
Projekt / tema: 065-0352851-0410, Hrvatska zaklada za znanost 08/31
Izvorni jezik: ENG
Current Contents: DA
Citation Index: DA
Kategorija: Znanstveni
Znanstvena područja:
Fizika,Temeljne medicinske znanosti,Stomatologija
Tiskani medij: da
URL Internet adrese: http://www.jopdentonline.org/doi/10.2341/14-091-L
Broj citata:
Altmetric:
DOI: 10.2341/14-091-L
Google Scholar: Raman Spectroscopic Assessment of Degree of Conversion of Bulk-Fill Resin Composites - Changes at 24 Hours Post Cure
Upisao u CROSBI: Danijela Marović (marovic@sfzg.hr), 5. Stu. 2014. u 09:43 sati



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