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Light diffusion through composite restorations added with spherical glass mega fillers

Identifieur interne : 000186 ( Main/Exploration ); précédent : 000185; suivant : 000187

Light diffusion through composite restorations added with spherical glass mega fillers

Auteurs : M. Andreasi Bassi [Italie] ; S. Andreasi Bassi [Italie] ; C. Andrisani [Italie] ; S. Lico [Italie] ; L. Baggi [Italie] ; D. Lauritano [Italie]

Source :

Oral & Implantology [ 1974-5648 ] ; 2017.

RBID : PMC:5333743

Abstract

SUMMARYPurpose

Evaluate how the spherical glass mega fillers (SGMFs) can positively interfere with light diffusion when incorporated in a composite restoration.

Materials and methods

30 samples (Ss) were performed, applying 2 composite layers of 3 mm each: 6 were made with composite only; 6 with a layer of SGMFs of O1.5mm within the first layer of composite; 6 with 2 overlapping layers of SGMFs of O1.5mm; 6 with a layer of SGMFs of O2mm; 6 with 2 overlapping layers of SGMFs of O2mm. The curing time was set at 40s for the first layer, and 120s for the second layer, transilluminated through the first layer. Digital pictures were taken, in standardized settings, during the transillumination, and the light intensity was measured with a digital image analysis software.

Results

From a lateral view the Ss with a single layer of SGMFs of O1.5mm and O2mm, the relative increments of light intensity, were of 24.37% and 33.33% respectively. Concerning the Ss made with 2 layers of SGMFs, the relative increments were of 67.99% and 66.4% respectively. In front view has emerged a relative increase rate of light intensity of 53.66% and 79.58%, in the Ss with a single layer of SGMFs of O1.5mm and of O2mm respectively. Furthermore, in the Ss with two layers of SGMFs of O1.5mm and O2mm the relative increments were of 267.53 and 319.63% respectively.

Conclusion

The SGMFs are reliable in facilitating light diffusion within the light-curing composite resins.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333743

DOI: 10.11138/orl/2016.9.1S.080
PubMed: 28280536
PubMed Central: 5333743

Affiliations:

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<front><div type="abstract" xml:lang="en"><title>SUMMARY</title>
<sec><title>Purpose</title>
<p>Evaluate how the spherical glass mega fillers (SGMFs) can positively interfere with light diffusion when incorporated in a composite restoration.</p>
</sec>
<sec><title>Materials and methods</title>
<p>30 samples (Ss) were performed, applying 2 composite layers of 3 mm each: 6 were made with composite only; 6 with a layer of SGMFs of O1.5mm within the first layer of composite; 6 with 2 overlapping layers of SGMFs of O1.5mm; 6 with a layer of SGMFs of O2mm; 6 with 2 overlapping layers of SGMFs of O2mm. The curing time was set at 40s for the first layer, and 120s for the second layer, transilluminated through the first layer. Digital pictures were taken, in standardized settings, during the transillumination, and the light intensity was measured with a digital image analysis software.</p>
</sec>
<sec><title>Results</title>
<p>From a lateral view the Ss with a single layer of SGMFs of O1.5mm and O2mm, the relative increments of light intensity, were of 24.37% and 33.33% respectively. Concerning the Ss made with 2 layers of SGMFs, the relative increments were of 67.99% and 66.4% respectively. In front view has emerged a relative increase rate of light intensity of 53.66% and 79.58%, in the Ss with a single layer of SGMFs of O1.5mm and of O2mm respectively. Furthermore, in the Ss with two layers of SGMFs of O1.5mm and O2mm the relative increments were of 267.53 and 319.63% respectively.</p>
</sec>
<sec><title>Conclusion</title>
<p>The SGMFs are reliable in facilitating light diffusion within the light-curing composite resins.</p>
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Light diffusion through composite restorations added with spherical glass mega fillers

Light diffusion through composite restorations added with spherical glass mega fillers

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Abstract

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