Naslov
Dimensional Changes of Glass Ionomers and a Giomer during the Setting Time

Autori
Spajić, Jelena ; Prskalo, Katica ; Šariri, Kristina ; Par, Matej ; Pandurić, Vlatko ; Demoli, Nazif

Izvornik
Acta stomatologica Croatica (0001-7019) 52 (2018), 4; 298-306

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
staklenoionomerni cementi ; stomatološko polimerizirajuće svjetlo ; dentalni materijali ; polimerizacija ; skupljanje materijala

Sažetak
Objectives: The aim of this study was to evaluate dimensional changes of conventional glass ionomer cements, resin-modified glass-ionomer cement, and a giomer during the setting time using digital laser interferometry. Additionally, the influence of different curing modes (“high”, “soft”, and “low”) of a light-emitting diode (LED) curing unit on dimensional changes was evaluated. Materials and methods: Linear curing shrinkage of conventional glass ionomer cements (CGICs): Fuji IX Extra (F9E), Fuji IX Fast (F9F), Ketac Molar Aplicap (KM), Ketac Molar Quick Aplicap (KMQ), resin-modified glass ionomer cement (RM GIC): Fuji II LC (F2LC) and giomer: Beautifil II (B2) was analyzed. All tested materials were of shade A3, while all of the GIC were encapsulated. Discoid specimens (n=10, d=10 mm, h=0.85 mm) were prepared for each tested material and each curing mode (for light-curable materials) according to the manufacturer’s instructions. Light-curable specimens were cured with LED curing unit (Bluephase G2, Ivoclar-Vivadent, and Schaan, Liechtenstein). Dimensional changes during curing were recorded in real-time. The results were analyzed by ANOVA, and Tukey post hoc test was used for multiple comparisons (α < 1%). Results: All tested materials showed an initial setting expansion and a subsequent setting shrinkage. KM and KMQ had significantly lower setting shrinkage than RM GIC polymerized using any of the three curing modes. B2 showed lower shrinkage compared to F2LC. Conclusions: The extent of curing shrinkage in RM GIC measured in this study can affect longevity of restorations.

Izvorni jezik
Hrvatski, engleski

Znanstvena područja
Dentalna medicina

Napomena
Rad je objavljen na hrvatskom i engleskom jeziku
(Dimenzijske promjene staklenoionomernih cementa i giomera tijekom stvrdnjavanja materijala)

POVEZANOST RADA