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An in vitro comparison of the force decay generated by different commercially available elastomeric chains and NiTi closed coil springs
Orthodontics corrective Orthodontic appliance design
2009/10/16
This in vitro study was designed to compare the forces generated by commercially available elastomeric chains and NiTi closed coil springs, and to determine their force decay pattern. Forty elastomeri...
Force application and decay characteristics of untreated and treated polyurethane elastomeric chains
Polyurethane elastomers Stress-relaxation Residual load Maxwell model
2009/1/12
In this study the effects of prestressing, environmental acidity, oxygen content, and temperature on mechanical properties were measured for three polyurethane-based orthodontic elastomeric chains...
Microbiological Evaluation of Elastomeric Chains
Elastomeric chain Microorganisms Contamination
2008/11/7
Objectives: To evaluate in vitro the surface of elastomeric chains of different manufacturers to verify the presence of pathogenic microorganisms at the moment of unpacking and analyze a possible inhi...