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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2013, Volume 50, Issue 1,





DANA CRISTINA BRATU, SILVIA-IZABELLA POP, RALUCA BALAN, MIRCEA DUDESCU, HORATIU POMPILIU PETRESCU, GEORGE POPA Effect of Different Artificial Saliva on the Mechanical Properties of Orthodontic Elastomers Ligatures


Abstract:
It was evaluated, in vitro, the effect of different artificial saliva on the mechanical properties of elastomeric ligatures. A total number of 160 elastomeric ligatures were divided in four groups (n=40 in each group). Three groups were exposed to three types of artificial saliva, (unmodified artificial saliva, with coca cola and with topical fluoride agent), for a period of 28 days. The fourth group (control group) remained unexposed. Tensile load at failure was determined by stretching the ligatures using an Instron Universal Testing Machine, until they fractured. The obtained data was statistically analyzed at a level of significance (p < 0.05). The two-way ANOVA showed significant statistical differences within groups (p < 0.001) and between time intervals (p < 0.005). There were a statistical significant interaction between groups and time on tensile load at failure (p < 0.005). Artificial saliva, Coke and Topical Fluoride seem to cause an increase in force decay of elastomeric ligatures, with a decrease in tensile load at failure over time. Keywords: elastomeric, orthodontics, tensile load



Issue: 2013 Volume 50, Issue 1
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