Comparing Microleakage and the Layering Methods of Silorane-based Resin Composite in Wide Class II MOD Cavities

Abstract

Method and Materials: Thirty-two freshly extracted caries-free human third molars were used. A wide mesio-occlusal-distal (MOD) cavity was prepared in each third molar, with the occlusal dimension being approximately twothirds of the intercuspal dimension, and the cervical limit of one proximal box was stopped 1 mm below and the other 1 mm above the cementoenamel junction. The cavities were filled with a methacrylate-based nanohybrid composite (Grandio, VoCo) and a silorane-based microhybrid composite (Filtek Silorane, 3M ESPE). All samples were subjected to 1000 thermal cycles of 5°C/55°C in water with a 30-second dwell time and, after the procedure, the teeth were immersed in a 0.5% basic fuchsin dye at 23°C for 24 hours. Sectioned samples were examined under a stereomicroscope (Leica MZ12, Leica Microsystems), and microleakage scores were statistically analyzed using the Kruskal-Wallis and the Mann-Whitney U tests. Clinical RelevanceThis in vitro study showed that the Silorane-based microhybrid resin composite system had no microleakage for wide Class II MOD restorations with oblique and vertical layering techniques.

Pulpal and Periapical Response After Restoration of Deep Cavities in Dogs' Teeth With Filtek Silorane and Filtek Supreme XT Systems

“…14 Although several recent studies have evaluated physicochemical properties of silorane-based resins, [13][14][15][16][17] research on their biologic effects is quite limited, being based mostly on in vitro and cell culture studies. 5,10,18 To the best of our knowledge, the in vivo pulpal and periapical response to these new restorative systems has not yet been investigated.…”

Marginal leakage of class V cavities restored with silorane-based and methacrylate-based resin systems

“…This shows that various traditionally used composite materials, due to a difference in their chemical compositions, may have a different marginal integrity, and therefore caution is advised when interpreting the comparable results. In a previous study on microleakage of Class II fillings by method of sample-cutting, Bagis et al 17) did not find that silorane fillings had any marginal leakages. The differences between the present study and Bagis' study could be attributed to different shapes of the cavities examined.…”

Microhardness of Composite Materials With Different Organic Phases in Deep Class II Cavities: An In Vitro Study

“…Several authors have described their promising low shrinkage. 10,11 Bagis and others 19 restored class II cavities with both silorane-based and conventional resin composite and observed that only the silorane group showed no leakage at enamel and dentin margins. With respect to these potential benefits, additional studies examining polymerization performance and microhardness with various LCUs are warranted.…”