Pregled bibliografske jedinice broj: 1261128
Effect of Fast High-Irradiance Photo-Polymerization of Resin Composites on the Dentin Bond Strength
Effect of Fast High-Irradiance Photo-Polymerization of Resin Composites on the Dentin Bond Strength // Materials, 15 (2022), 21; 7467, 11 doi:10.3390/ma15217467 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1261128 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of Fast High-Irradiance Photo-Polymerization
of Resin Composites on the Dentin Bond Strength
Autori
Steffen, Tobias ; Par, Matej ; Attin, Thomas ; Tauböck, Tobias T.
Izvornik
Materials (1996-1944) 15
(2022), 21;
7467, 11
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
high-irradiance light curing ; rapid photo-polymerization ; bulk-fill resin composites ; micro-tensile bond strength ; dentin adhesion ; failure analysis
Sažetak
This study investigated the influence of conventional (10 s at 1160 mW/cm2) and fast high- irradiance (3 s at 2850 mW/cm2) light curing on the micro-tensile bond strength (μTBS) of bulk- fill resin composites bonded to human dentin. Sixty-four extracted human molars were ground to dentin and randomly assigned into eight groups (n = 8 per group). After application of a three-step adhesive system (Optibond FL), four different bulk-fill composites (two sculptable and two flowable composites) were placed. Of these, one sculptable (Tetric PowerFill) and one flowable (Tetric PowerFlow) composite were specifically developed for fast high-irradiance light curing. Each composite was polymerized with the conventional or the fast high-irradiance light- curing protocol. The specimens were cut into dentin-composite sticks, μTBS was determined and failure modes were analyzed. Statistical analysis was performed using t-test for independent observations and one-way ANOVA. A statistical difference between the curing protocols was only found for Tetric PowerFlow, where the conventional protocol (23.8 ± 4.2 MPa) led to significantly higher values than the fast high-irradiance light- curing protocol (18.7 ± 3.7 MPa). All other composite materials showed statistically similar values for both polymerization protocols. In conclusion, the use of fast high-irradiation light curing has no negative influence on the μTBS of the investigated high-viscosity bulk-fill composites. However, it may reduce the dentin bond strength of flowable bulk-fill composite.
Izvorni jezik
Engleski
Znanstvena područja
Dentalna medicina
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
