scholarly journals Evaluation of gingival microleakage of class II resin composite restorations with fiber inserts: An in vitro study

2012 ◽  
Vol 15 (2) ◽  
pp. 166 ◽  
Author(s):  
RS Basavanna ◽  
Anish Garg ◽  
Ravi Kapur
Keyword(s):  
Resin Composite ◽  
In Vitro Study ◽  
Class Ii ◽  
Vitro Study ◽  
Composite Restorations ◽  
Fiber Inserts

Effect of liner on the marginal integrity of resin composite restorations after selective caries excavation: An In Vitro study

2019 ◽  
Vol 8 (2) ◽  
pp. 29
Author(s):  
BaranyaShrikrishna Suprabha ◽  
Shailaja Datta ◽  
Ethel Suman ◽  
Ramya Shenoy ◽  
Arathi Rao ◽  
...  
Keyword(s):  
Resin Composite ◽  
In Vitro Study ◽  
Vitro Study ◽  
Composite Restorations ◽  
Marginal Integrity ◽  
Caries Excavation

scholarly journals Influence of Volumetric Shrinkage and Curing Light Intensity on Proximal Contact Tightness of Class II Resin Composite Restorations: In Vitro Study

2012 ◽  
Vol 37 (2) ◽  
pp. 205-210 ◽  
Author(s):  
H El-Shamy ◽  
MH Saber ◽  
CE Dörfer ◽  
W El-Badrawy ◽  
BAC Loomans
Keyword(s):  
Light Intensity ◽  
High Intensity ◽  
Resin Composite ◽  
In Vitro Study ◽  
Class Ii ◽  
Volumetric Shrinkage ◽  
Low Intensity ◽  
Composite Restorations ◽  
Curing Light

SUMMARY Background Proximal contact tightness of class II resin composite restorations is influenced by a myriad of factors. Previous studies investigated the role of matrix band type and thickness, consistency of resin composite, and technique of placement. However, the effect of volumetric shrinkage of resin and intensity of curing light has yet to be determined. Thus, the aim of this study was to identify the influence of these factors on the proximal contact tightness when restoring class II cavity preparations in vitro. Methods Sixty artificial molars were restored with either a low-shrinkage (Filtek Silorane, 3M ESPE) or a conventional (Z100, 3M ESPE) composite and polymerized with low-intensity (Smartlite IQ2, Dentsply) or high-intensity light curing units (DemiTM, Kerr). Proximal contact tightness was measured using the Tooth Pressure Meter. Data were statistically analyzed using one-way analysis of variance and Tukey post hoc test. Results Use of low-shrinkage composite (Filtek Silorane) resulted in significantly tighter proximal contacts compared to the use of conventional composite (Z100) when cured with the same polymerization unit (p<0.001). Moreover, the low-intensity curing unit (IQ2) resulted in significantly tighter contacts than the high-intensity unit when material is constant (p<0.001). Conclusions Low-shrinkage resin composite and low curing light intensity is associated with tighter proximal contact values.

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

2009 ◽  
Vol 34 (5) ◽  
pp. 578-585 ◽  
Author(s):  
Y. H. Bagis ◽  
I. H. Baltacioglu ◽  
S. Kahyaogullari
Keyword(s):  
Wide Class ◽  
Clinical Relevance ◽  
Composite System ◽  
Resin Composite ◽  
In Vitro Study ◽  
Class Ii ◽  
Vitro Study

Clinical Relevance This 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.

scholarly journals Influence of proximal contacts and FRC posts on the fracture behavior of premolars with class II composite restorations: An in-vitro study

2013 ◽  
Vol 32 (6) ◽  
pp. 952-958 ◽  
Author(s):  
Klaus-Peter KRUG ◽  
Stephanie E. OTTER ◽  
Andreas W. KNAUBER ◽  
Kurt-Juergen ERDELT ◽  
Frank P. NOTHDURFT
Keyword(s):  
Fracture Behavior ◽  
In Vitro Study ◽  
Class Ii ◽  
Vitro Study ◽  
Composite Restorations

Silorane versus methacrylate composites: A comparative study of the micro-leakage

2018 ◽  
pp. 58-65 ◽  
Author(s):  
Meriem Fejjeri-Mezghanni
Keyword(s):  
Methylene Blue ◽  
Resin Composite ◽  
In Vitro Study ◽  
Class Ii ◽  
Composite Resins ◽  
Vitro Study ◽  
Group Iii ◽  
Group I ◽  
Permanent Molars

This in vitro study aimed to evaluate the micro-leakage at the occlusal and cervical margins in class II cavities in permanent molars restored with a low shrink silorane resin composite (Filtek P90) applied with or without etching and two methacrylate-based composite resins (valux plus and Amelogen® plus). Two standardised class II box cavities were prepared in proximal surfaces of 60 sound non-fluorotic permanent molars which were divided into three groups of 20 each according to the type of composite. Group I: silorane-based composite (Filtek P90) in the mesial cavity and methacrylate-based microhybrid composite (Adper single bond 2/valux plus) in the distal cavity, Group II: silorane-based composite in the mesial cavity and silorane-based composite with previous etching in the distal cavity, and Group III: silorane-based composite in the mesial cavity and methacrylate-based micro-hybrid composite (PQ1 /Amelogen plus) in the distal cavity. The samples underwent an artificial aging with thermocycling. Root apices were sealed with transparent orthodontic resin and coated with transparent varnish except 1 mm around the restoration. The specimens were immersed in 1% methylene blue solution at room temperature for 48 hour. The samples were sectioned longitudinally in the mesiodistal direction and evaluated under a stereomicroscope at 20X. Scoring was done according to the depth of methylene blue penetration into the cavities. Statistical analysis of the data was performed using SPSS 17.0 software. Silorane-based composite resin showed less micro-leakage than the methacrylate-based composites. Etching improved the sealing ability of silorane restorations. Silorane-based composite preceded by etching had less micro-leakage among the other materials used in this in vitro study. Keywords: Silorane, methacrylate based composite, sealing, micro-leakage, class II cavity

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