Probing the origins and control of shrinkage stress in dental resin composites. II. Novel method of simultaneous measurement of polymerization shrinkage stress and conversion

2004 ◽  
Vol 71B (1) ◽  
pp. 206-213 ◽  
Author(s):  
Hui Lu ◽  
Jeffrey W. Stansbury ◽  
Sabine H. Dickens ◽  
Frederick C. Eichmiller ◽  
Christopher N. Bowman
Keyword(s):  
Simultaneous Measurement ◽  
Shrinkage Stress ◽  
Resin Composites ◽  
Dental Resin ◽  
Polymerization Shrinkage ◽  
Dental Resin Composites ◽  
Novel Method ◽  
And Control

scholarly journals Polymerization shrinkage behaviour of resin composites functionalized with unsilanized bioactive glass fillers

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Matej Par ◽  
Dirk Mohn ◽  
Thomas Attin ◽  
Zrinka Tarle ◽  
Tobias T. Tauböck
Keyword(s):  
Bioactive Glass ◽  
Degree Of Conversion ◽  
Stress Rate ◽  
Partial Replacement ◽  
Shrinkage Stress ◽  
Resin Composites ◽  
Dental Resin ◽  
Polymerization Shrinkage ◽  
Reinforcing Fillers ◽  
Shrinkage Behaviour

Abstract Previous work has shown that partial replacement of reinforcing fillers with unsilanized silica particles can diminish polymerization shrinkage stress of dental resin composites. The aim of the present study was to investigate whether such an effect can be attained by using unsilanized bioactive glass (BG). Incorporating BG fillers into resin composites is interesting due to their potential for exerting caries-preventive effects. Experimental light-curable composites with a total filler load of 77 wt% were prepared. Reinforcing fillers were partially replaced with 0–60 wt% of BG 45S5 and an experimental low-sodium fluoride-containing BG. The following properties were investigated: linear shrinkage, degree of conversion, shrinkage stress, maximum shrinkage stress rate, and time to achieve maximum shrinkage stress rate. The diminishing effect of BG 45S5 on shrinkage stress was mediated by a decrease in degree of conversion caused by this BG type. In contrast, as the degree of conversion remained unaffected by the experimental BG, the resulting shrinkage behaviour was governed by the effect of varying amounts of silanized and unsilanized fillers on material’s viscoelastic properties. The replacement of silanized reinforcing fillers with unsilanized BG did not reduce polymerization shrinkage stress unless the reduction was attained indirectly through a diminished degree of conversion.

scholarly journals Polymerization shrinkage, flexural and compression properties of low-shrinkage dental resin composites

2014 ◽  
Vol 33 (1) ◽  
pp. 104-110 ◽  
Author(s):  
Jeong-Kil PARK ◽  
Geun-Ho LEE ◽  
Jong-Hwa KIM ◽  
Mi-Gyoung PARK ◽  
Ching-Chang KO ◽  
...  
Keyword(s):  
Resin Composites ◽  
Dental Resin ◽  
Polymerization Shrinkage ◽  
Compression Properties ◽  
Dental Resin Composites

Evaluation of Shrinkage Stress and Exotherm during Lightcuring of Dental Resin Composites

2012 ◽  
Vol 41 (5) ◽  
pp. 528-531
Author(s):  
刘林 LIU Lin ◽  
叶志清 YE Zhiqing ◽  
饶春芳 RAO Chunfang ◽  
胡友德 HU Youde ◽  
匡芬 KUANG Fan ◽  
...  
Keyword(s):  
Shrinkage Stress ◽  
Resin Composites ◽  
Dental Resin ◽  
Dental Resin Composites ◽  
Light Curing

Development of high performance dental resin composites with outstanding antibacterial activity, high mechanical properties and low polymerization shrinkage based on a SiO2 hybridized tetrapod-like zinc oxide whisker with CC bonds

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 56353-56364 ◽  
Author(s):  
Meng Shen ◽  
Guozheng Liang ◽  
Aijuan Gu ◽  
Li Yuan
Keyword(s):  
Mechanical Properties ◽  
Zinc Oxide ◽  
Antibacterial Activity ◽  
High Performance ◽  
Resin Composites ◽  
Dental Resin ◽  
Polymerization Shrinkage ◽  
Dental Resin Composites ◽  
Oxide Whisker

Novel dental resin composites with outstanding antibacterial activity, high mechanical properties and low polymerization shrinkage were fabricated with SiO2 hybridized tetrapod-like zinc oxide whiskers, and the origin behind was revealed.

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