Assessment of the elasticity module of aesthetic materials for restoration of cervical lesions
Keywords:
elasticity module, aesthetic materials, cervical lesions.Abstract
Te loss of tissue in the cervical zone has been attributed to the erosion andabrasion provoked by toothbrush. The role of occlusal forces is a very important
factor to be taken into account in the development and advance of these carious non-cervical lesions. To distinguish the different mechanical properties and mainly
the elasticity module of aesthetic material used for repair of this type of lesion, will
allows a great survival of the obturations and in large extent in the treatment of our
patients. The aim of present paper was to assess the elasticity module of 6 esthetic
restoring materials. Following the ISO 4049 rule 10 test tubes of ach experimental
material. A flexion assay of 3 points with INSTRON 4486 was used. From the
numerical relation among the tension values (T) and deformation (D) we obtained
the elasticity or Young (E) elasticity module for each experimental material. The
variance analysis showed significant differences (p < 0.0001) among the different
materials. The flow compomers were those with better results in this experimental
condition, being the more suitable for repair of lesions of abfraction.
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