Indentation Fracture Toughness Testing of and Crack Propagation Mode in Dental Composites

1987 ◽  
Vol 110 ◽  
Author(s):  
Jack L. Ferracane
Keyword(s):  
Fracture Toughness ◽  
Crack Propagation ◽  
Composite Resins ◽  
Dental Composite ◽  
Dental Composites ◽  
Propagation Mode ◽  
Dental Composite Resins ◽  
Indentation Fracture Toughness ◽  
The Matrix ◽  
Toughness Testing

AbstractThe use of a Vicker's indenter to measure the fracture resistance of dental composite resins was correlated to fracture toughness results obtained by bending of notched bars. There is a fair correlation between the methods, but many dental composites do not form cracks by the indentation technique, thereby limiting its usefulness. SEM micrographs reveal a crack propagation mode which is mostly through the matrix and along the filler/matrix interface, with evidence of particle fracture

The Fracture Toughness Characteristics of Three Dental Composite Resins

1991 ◽  
Vol 1 (4) ◽  
pp. 223-231
Author(s):  
Y. Higo ◽  
D. Damri ◽  
S. Nunomura ◽  
K. Kumada ◽  
N. Sawa ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Composite Resins ◽  
Dental Composite ◽  
Dental Composite Resins

scholarly journals Molecular Interactions between Saliva and Dental Composites Resins: A Way Forward

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2537
Author(s):  
Veaceslav Șaramet ◽  
Marina Meleșcanu-Imre ◽  
Ana Maria Cristina Țâncu ◽  
Crenguța Cristina Albu ◽  
Alexandra Ripszky-Totan ◽  
...  
Keyword(s):  
Dental Materials ◽  
Composite Resins ◽  
Dental Composite ◽  
Dental Composites ◽  
Oral Biofilm ◽  
Oxidative Stress Biomarkers ◽  
Cytotoxic Effects ◽  
Stress Biomarkers ◽  
Dental Composite Resins ◽  
Molecular Landscape

Dentin and enamel loss related to trauma or especially caries is one of the most common pathological issues in dentistry that requires restoration of the teeth by using materials with appropriate properties. The composite resins represent dental materials with significant importance in today’s dentistry, presenting important qualities, including their mechanical behavior and excellent aesthetics. This paper focuses on the saliva interactions with these materials and on their biocompatibility, which is continuously improved in the new generations of resin-based composites. Starting from the elements involved on the molecular landscape of the dental caries process, the paper presents certain strategies for obtaining more advanced new dental composite resins, as follows: suppression of oral biofilm acids formation, promotion of remineralization process, counteraction of the proteolytic attack, and avoidance of cytotoxic effects; the relation between dental composite resins and salivary oxidative stress biomarkers is also presented in this context.

Interactions Between Dental Composite Resins and Saliva A comparative biochemical in vitro study

2019 ◽  
Vol 56 (3) ◽  
pp. 529-533
Author(s):  
Mihaela Pantea ◽  
Diana Andreea Ighigeanu ◽  
Alexandra Totan ◽  
Maria Greabu ◽  
Daniela Miricescu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
In Vitro Study ◽  
Composite Resins ◽  
Vitro Study ◽  
Dental Composite ◽  
Gamma Glutamyl Transferase ◽  
Specific Protocol ◽  
Dental Composite Resins ◽  
Glutamyl Transferase

This in vitro study analyses the biochemical interaction between saliva and three types of dental composite resins (a direct resin, an indirect resin and a dual-cure resin used for cementation of indirect dental restorations). The resin samples were obtained following a specific protocol and in line with the producers� recommendations; the resin samples were incubated with saliva samples collected from 19 healthy volunteers. The obtained results showed that the tested composite resins did not produce significant changes in oxidative stress parameters that were analysed (albumin, uric acid, GGT / gamma glutamyl transferase, OXSR-1 / oxidative stress responsive kinase 1) and do not influence the inflammatory salivary status reflected by the levels of IL-6 - an inflammatory marker.

scholarly journals The effect of resin shades on microhardness, polymerization shrinkage, and color change of dental composite resins

2009 ◽  
Vol 28 (4) ◽  
pp. 438-445 ◽  
Author(s):  
Tae-Sung JEONG ◽  
Ho-Seung KANG ◽  
Sung-Ki KIM ◽  
Shin KIM ◽  
Hyung-Il KIM ◽  
...  
Keyword(s):  
Color Change ◽  
Composite Resins ◽  
Dental Composite ◽  
Polymerization Shrinkage ◽  
Dental Composite Resins

The filler content of the dental composite resins and their influence on different properties

2011 ◽  
Vol 75 (6) ◽  
pp. 758-765 ◽  
Author(s):  
Alessandra N.S. Rastelli ◽  
Denis P. Jacomassi ◽  
Ana Paula S. Faloni ◽  
Thallita P. Queiroz ◽  
Seila S. Rojas ◽  
...  
Keyword(s):  
Filler Content ◽  
Composite Resins ◽  
Dental Composite ◽  
Dental Composite Resins

scholarly journals The effects of different opacifiers on the translucency of experimental dental composite resins

2017 ◽  
Vol 33 (8) ◽  
pp. e310-e316 ◽  
Author(s):  
Karine Haas ◽  
Gulelala Azhar ◽  
Duncan J. Wood ◽  
Keyvan Moharamzadeh ◽  
Richard van Noort
Keyword(s):  
Composite Resins ◽  
Dental Composite ◽  
Dental Composite Resins
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