Characterization of mouth-formed mouthguards: Thermal performance
TypeArticles dans des revues avec comité de lecture
This study examined whether the thermo-modeling process suits the thermal properties of the material constituting mouthformed mouthguards (MGs). Five mouth-formed MGs were compared: four commercially available MGs (SDITM, Gel NanoTM, Opro Shield GoldTM, and Kipsta R300TM) and one prototype. Differential scanning calorimetry was used to determine melting (Tm) and crystallization (Tc) temperatures and specifi fusion and crystallization enthalpies (∆Hf and ∆Hc (J/g)). MGs were modeled with recording of vestibular flnge and occlusal cushion temperatures (Toccl). Tm ranged from 45.3°C to 53.0°C and Tc ranged from 40.9°C to 48.2°C. Specifi heat of fusion ranged from 40.2 J/g to 62.0 J/g. Toccl was higher than Tm for all MGs except Kipsta R300TM. Guidelines provided by manufacturers may not be adapted to thermal properties of the MG material. To ensure proper thermomodeling, heating and biting durations should be adjusted.
Files in this item
Showing items related by title, author, creator and subject.
VERGARI, Claudio; VERGARI, Claudio; ROUCH, Philippe; DUBOIS, Guillaume; BONNEAU, Dominique; DUBOUSSET, Jean; TANTER, Mickael; GENNISSON, Jean-Luc; SKALLI, Wafa (SAGE, 2014)Patient-specific numerical simulation of the spine is a useful tool both in clinic and research. While geometrical personalization of the spine is no more an issue, thanks to recent technological advances, non-invasive ...
Non-invasive biomechanical characterization of intervertebral discs by shear wave ultrasound elastography: a feasibility study VERGARI, Claudio; ROUCH, Philippe; DUBOIS, Guillaume; BONNEAU, Dominique; DUBOUSSET, Jean; TANTER, Mickael; GENNISSON, Jean-Luc (Springer, 2014)Objectives Although magnetic resonance is widely spread to assess qualitatively disc morphology, a simple method to determine reliably intervertebral disc status is still lacking. Shear wave elastography is a novel technique ...
Lumbar annulus fibrosus biomechanical characterization in children by ultrasound shear wave elastography VERGARI, Claudio; DUBOIS, Guillaume; GENNISSON, Jean-Luc; TANTER, Mickael; DUBOUSSET, Jean; ROUCH, Philippe; SKALLI, Wafa; VIALLE, Raphaël (Springer, 2016)Objectives Intervertebral disc (IVD) is key to spine biomechanics, and it is often involved in the cascade leading to spinal deformities such as idiopathic scoliosis, especially during the growth spurt. Recent progress in ...
Quantitative Ultrasound of Cortical Bone in the Femoral Neck Predicts Femur Strength: Results of a Pilot Study GRIMAL, Quentin; GRONDIN, Julien; GUERARD, Sandra; BARKMANN, Reinhard; ENGELKE, Klaus; GLÜER, Claus-C; LAUGIER, Pascal (wiley, 2013)A significant risk of femoral neck (FN) fracture exists for men and women with an areal bone mineral density (aBMD) higher than the osteoporotic range, as measured with dual-energy X-ray absorptiometry (DXA). Separately ...
Polypropylene foam behaviour under dynamic loadings: Strain rate, density and microstructure effects BOUIX, Rémy; VIOT, Philippe; LATAILLADE, Jean-Luc (Elsevier, 2009)Expanded polypropylene foams (EPP) can be used to absorb shock energy. The performance of these foams has to be studied as a function of several parameters such as density, microstructure and also the strain rate imposed ...