Post-gel Shrinkage Strain and Degree of Conversion of Preheated Resin Composite Cured Using Different Regimens

2010 ◽  
Vol 35 (2) ◽  
pp. 172-179 ◽  
Author(s):  
D. I. El-Korashy
Keyword(s):  
Clinical Relevance ◽  
Negative Impact ◽  
Resin Composite ◽  
Shrinkage Strain ◽  
Degree Of Conversion ◽  
Soft Start

Clinical Relevance The preheating of resin composite prior to curing yielded a better degree of conversion but had a negative impact on the induced post-gel shrinkage strain; soft-start mode is recommended, as it reduces the post-gel shrinkage strain without affecting the degree of conversion.

scholarly journals The Effect of Soft-start Polymerization by Second Generation LEDs on the Degree of Conversion of Resin Composite

10.2341/06-45 ◽  
2007 ◽  
Vol 32 (2) ◽  
pp. 160-165 ◽  
Author(s):  
L. E. S. Soares ◽  
P. C. S. Liporoni ◽  
A. A. Martin
Keyword(s):  
Clinical Relevance ◽  
Second Generation ◽  
Resin Composite ◽  
Organic Matrix ◽  
Degree Of Conversion ◽  
Resin Composites ◽  
Photo Polymerization ◽  
Soft Start ◽  
Halogen Light ◽  
Restoration Failure

Clinical Relevance Photo-polymerization using second generation LED and halogen light in the soft-start mode of curing was able to produce an adequate degree of conversion in resin composites. The lower degree of conversion produced by low power LED in the soft-start mode could lead to restoration failure, degradation of the organic matrix and recurrent caries.

scholarly journals Influence of Photoactivation Protocol and Light Guide Distance on Conversion and Microleakage of Composite Restorations

2009 ◽  
Vol 34 (4) ◽  
pp. 408-414 ◽  
Author(s):  
N. R. G. Fróes-Salgado ◽  
C. S. C. Pfeifer ◽  
C. E. Francci ◽  
Y. Kawano
Keyword(s):  
Clinical Practice ◽  
Clinical Relevance ◽  
Light Guide ◽  
Degree Of Conversion ◽  
Composite Restorations ◽  
Soft Start

Clinical Relevance In this study, soft-start photoactivation methods were demonstrated to be able to reduce microleakage with only a discrete reduction in the degree of conversion. This was achieved when this protocol was associated with a 7 mm distance from the light guide, which is common in deep preparations in clinical practice.

scholarly journals Influence of soft-start curing protocol in the degree of conversion of a nanohybrid resin composite

2018 ◽  
Vol 33 (1) ◽  
pp. 49
Author(s):  
Heloisa Amorim Periotto ◽  
Ana Daielly Da Silva ◽  
Isabella Saraiva Leão De Resende ◽  
Hellen Martins Jucá ◽  
Sérgio Lima Santiago ◽  
...  
Keyword(s):  
Statistical Difference ◽  
Composite Resin ◽  
Resin Composite ◽  
Degree Of Conversion ◽  
Conversion Degree ◽  
Significance Level ◽  
Base Area ◽  
Soft Start ◽  
Nanohybrid Composite

OBJECTIVE: To analyze the influence of the soft-start curing protocol in the degree of conversion of a nanohybrid composite.METHODS: Ten specimens were prepared from the polymerization of the composite resin Llis using two protocols: conventional (1000 mW/cm² for 20 seconds) or gradual (250 mW/cm² for 20 seconds + 1000 mW/cm² for 15 seconds). Then, analyzes were performed using a spectrophotometer and data were subjected to Two-way ANOVA and Holm-Sidak test. The significance level was 5%.RESULTS: There was no statistical difference between the average resin conversion degree of composite values in the base area and top for both curing protocols (p > 0.05).CONCLUSION: Therefore, the use of soft-start curing protocol did not interfere in the degree of conversion of a nanohybrid composite.

Effect of Time and Polymerization Cycle on the Degree of Conversion of a Resin Composite

10.2341/05-81 ◽  
2006 ◽  
Vol 31 (4) ◽  
pp. 489-495 ◽  
Author(s):  
L. F. J. Schneider ◽  
S. Consani ◽  
F. Ogliari ◽  
A. B. Correr ◽  
L. C. Sobrinho ◽  
...  
Keyword(s):  
Clinical Relevance ◽  
Resin Composite ◽  
Degree Of Conversion ◽  
Activation Condition ◽  
Composite Properties

Clinical Relevance Initial and final resin composite properties will depend on the photo-activation condition applied.

Degree of Conversion and Contraction Stress Development of a Resin Composite Irradiated Using Halogen and LED at Two C-factor Levels

10.2341/08-32 ◽  
2009 ◽  
Vol 34 (1) ◽  
pp. 24-31 ◽  
Author(s):  
L. G. Cunha ◽  
R. C. B. Alonso ◽  
A. C. C. Neves ◽  
M. F. de Goes ◽  
J. L. Ferracane ◽  
...  
Keyword(s):  
Clinical Relevance ◽  
Resin Composite ◽  
Degree Of Conversion ◽  
Stress Rate ◽  
Stress Generation ◽  
Stress Development ◽  
Curing Methods ◽  
Contraction Stress ◽  
Lower Irradiance

Clinical Relevance Curing methods using lower irradiance levels were shown to be effective in reducing the rate of stress generation without compromising the conversion of the restorative composite. Higher C-factor was shown to enhance the stress rate and amount of stress generated.

Effect of LED Light-Curing Spectral Emission Profile on Light-Cured Resin Cement Degree of Conversion

2020 ◽  
Author(s):  
RQ Ramos ◽  
RR Moraes ◽  
GC Lopes
Keyword(s):  
Clinical Relevance ◽  
Degree Of Conversion ◽  
Resin Cement ◽  
Light Activation ◽  
Spectral Emission ◽  
Led Light ◽  
Emission Profile ◽  
Light Curing

Clinical Relevance The use of multipeak LED light-curing guarantees efficiency on light activation of Ivocerin-containing light-cured resin cement.

scholarly journals Comparison of Proximal Contacts of Class II Resin Composite Restorations In Vitro

2006 ◽  
Vol 31 (6) ◽  
pp. 688-693 ◽  
Author(s):  
B. A. C. Loomans ◽  
N. J. M. Opdam ◽  
F. J. M. Roeters ◽  
E. M. Bronkhorst ◽  
R. C. W. Burgersdijk
Keyword(s):  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Composite Restorations ◽  
Composite Restoration

Clinical Relevance When placing a Class II resin composite restoration, the use of sectional matrix systems and separation rings to obtain tight proximal contacts is recommended.

Bond Strength Comparison of Amalgam Repair Protocols Using Resin Composite in Situations With and Without Dentin Exposure

2010 ◽  
Vol 35 (6) ◽  
pp. 655-662 ◽  
Author(s):  
M. Özcan ◽  
G. Schoonbeek ◽  
B. Gökçe ◽  
E. Çömlekoglu ◽  
M. Dündar
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Resin Composite ◽  
Amalgam Restorations

Clinical Relevance For reliable repair of amalgam restorations, including dentin fractures, the amalgam surface should first be silica coated; dentin/enamel should be etched, washed and rinsed thoroughly. Then, amalgam should be silanized and primer/bonding should be applied onto dentin.

Gingival Microleakage of Class II Resin Composite Restorations with Fiber Inserts

10.2341/06-86 ◽  
2007 ◽  
Vol 32 (3) ◽  
pp. 298-305 ◽  
Author(s):  
O. El-Mowafy ◽  
W. El-Badrawy ◽  
A. Eltanty ◽  
K. Abbasi ◽  
N. Habib
Keyword(s):  
Clinical Relevance ◽  
Resin Composite ◽  
Class Ii ◽  
Composite Restorations ◽  
Fiber Inserts

Clinical Relevance Fiber inserts incorporated at the gingival floor of Class II composite restorations resulted in a significant reduction of microleakage scores as compared to restorations made without inserts. This may lead to a reduced incidence of recurrent caries.

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