scholarly journals Application of an addition–fragmentation-chain transfer monomer in di(meth)acrylate network formation to reduce polymerization shrinkage stress

2017 ◽  
Vol 8 (30) ◽  
pp. 4339-4351 ◽  
Author(s):  
Parag K. Shah ◽  
Jeffrey W. Stansbury ◽  
Christopher N. Bowman
Keyword(s):  
Chain Transfer ◽  
Network Formation ◽  
Shrinkage Stress ◽  
Polymerization Shrinkage ◽  
Chain Transfer Monomer

Reduction in photopolymerization-induced shrinkage stress is achieved using an addition–fragmentation chain transfer moiety incorporated into a dimethacrylate monomer that participates in network formation with multifunctional (meth)acrylates.

scholarly journals Novel dental restorative materials having low polymerization shrinkage stress via stress relaxation by addition-fragmentation chain transfer

2012 ◽  
Vol 28 (11) ◽  
pp. 1113-1119 ◽  
Author(s):  
Hee Young Park ◽  
Christopher J. Kloxin ◽  
Ahmed S. Abuelyaman ◽  
Joe D. Oxman ◽  
Christopher N. Bowman
Keyword(s):  
Stress Relaxation ◽  
Chain Transfer ◽  
Shrinkage Stress ◽  
Polymerization Shrinkage ◽  
Dental Restorative Materials ◽  
Restorative Materials ◽  
Dental Restorative

scholarly journals Photoelastic evaluation of the effect of composite formulation on polymerization shrinkage stress

2012 ◽  
Vol 26 (3) ◽  
pp. 202-208 ◽  
Author(s):  
Karla Mychellyne Costa Oliveira ◽  
Simonides Consani ◽  
Luciano Souza Gonçalves ◽  
William Cunha Brandt ◽  
Renzo Alberto Ccahuana-Vásquez
Keyword(s):  
Shrinkage Stress ◽  
Polymerization Shrinkage

scholarly journals THE COMPARISON OF RESIN-BASED COMPOSITES PHYSICAL PROPERTIES BETWEEN BULK-FILL TECHNIQUE AND INCREMENTAL TECHNIQUE

2021 ◽  
Vol 6 (1) ◽  
pp. 85
Author(s):  
Rahmi Khairani Aulia
Keyword(s):  
Physical Properties ◽  
Composite Resin ◽  
Color Stability ◽  
Composite Resins ◽  
Shrinkage Stress ◽  
Restorative Material ◽  
Polymerization Shrinkage ◽  
Advantages And Disadvantages ◽  
Restoration Technique ◽  
Restoration Failure

ABSTRACT:Composite resins are currently the most popular restorative material in dentistry. This is due to good aesthetics and maximum conservation ability. Behind these advantages, there are disbenefits of composite resin materials, such as polymerization shrinkage, which can lead to restoration failure. Various attempts have been investigated to reduce the shrinkage incidence of composite resins, one of which is the technique of placing the restorative material into the cavity. The restoration filling technique is recognized as a significant factor in shrinkage stress. By using a special filling technique, the polymerization shrinkage damage stress can be reduced. There are several techniques in performing composite resin fillings, including bulk and incremental techniques. These techniques have their respective advantages and disadvantages. The aim of this literature review was to compare the physical properties of composite resin restorations with bulk filling and incremental techniques. Physical properties that being studied include polymerization shrinkage, stress shrinkage, degree of conversion, bonding strength, water resorption, color stability, and temperature increase. Comparing the two techniques, composite resin with incremental filling technique has superior physical properties compared to bulk technique. From the comparison of the two techniques, the composite resin with incremental filling technique has superior physical properties compared to the bulk technique, especially in higher conversion which causes lower shrinkage stress. This situation makes the incremental technique provide better bond strength, water resorption, color stability, and lower temperature rise.Keywords: Bulk, Composite Resin, Incremental,  Physical Properties, Restoration, Restoration Technique

Polymerization shrinkage-stress kinetics of resin-composites

2014 ◽  
Vol 30 ◽  
pp. e57
Author(s):  
H. Al-Sunbul ◽  
N. Silikas ◽  
D.C. Watts
Keyword(s):  
Shrinkage Stress ◽  
Resin Composites ◽  
Polymerization Shrinkage ◽  
Kinetics Of

Polymerization Shrinkage Stress Kinetics and Related Properties of Bulk-fill Resin Composites

2014 ◽  
Vol 39 (4) ◽  
pp. 374-382 ◽  
Author(s):  
HM El-Damanhoury ◽  
JA Platt
Keyword(s):  
Standard Procedure ◽  
Stress Rate ◽  
Shrinkage Stress ◽  
Resin Composites ◽  
Polymerization Shrinkage ◽  
Significance Level ◽  
Microhardness Data ◽  
Knoop Microhardness ◽  
Kinetics Of ◽  
Fill Materials

SUMMARY The present study assessed the polymerization shrinkage stress kinetics of five low-shrinkage light-cured bulk-fill resin composites: Surefil SDR flow (SF, Dentsply), Tetric EvoCeram Bulkfil (TE, Ivoclar Vivadent), Venus Bulk Fill (VB, Heraeus Kulzer), x-tra fil (XF, Voco), and experimental bulk fill (FB, 3M ESPE). Filtek Z250 (FZ, 3M ESPE) was used as a control. Real-time shrinkage stress of investigated composites was measured using a tensometer; maximum shrinkage stress, stress rate (Rmax), and time to reach maximum stress rate (tmax) were recorded. Flexural strength and modulus were measured using a standard procedure, and curing efficiency of 4-mm long specimens was determined using bottom/top percentage Knoop microhardness. Data were analyzed using one-way analysis of variance and Bonferroni multiple range tests at a significance level of α=0.05. Results of shrinkage stress, Rmax, and tmax of all bulk-fill materials were significantly lower (p<0.05) than those of the control except for XF. All tested bulk-fill materials were able to achieve acceptable curing efficiency (≥80% bottom/top percentage) at 4-mm depth. In conclusion, this study reports a significant reduction in polymerization shrinkage stress while maintaining comparable curing efficiency at 4 mm for some bulk-fill composites and supports their potential use in posterior clinical situations.

scholarly journals Polymerization shrinkage stress of composite resins and resin cements – What do we need to know?

2017 ◽  
Vol 31 (suppl 1) ◽  
Author(s):  
Carlos José SOARES ◽  
André Luis FARIA-E-SILVA ◽  
Monise de Paula RODRIGUES ◽  
Andomar Bruno Fernandes VILELA ◽  
Carmem Silvia PFEIFER ◽  
...  
Keyword(s):  
Composite Resins ◽  
Shrinkage Stress ◽  
Resin Cements ◽  
Polymerization Shrinkage
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