Impact of fluoride agents on mechanical properties of orthodontic wires

Katić, Višnja and Špalj, Stjepan and Leder Horina, Jasna and Vikić-Topić, Dražen (2014) Impact of fluoride agents on mechanical properties of orthodontic wires. = Impact of fluoride agents on mechanical properties of orthodontic wires. In: 2nd International Conference on Biodental Engineering, BIODENTAL 2012, 07-08.12.2012., Porto; Portugal.

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Effects of fluoride prophylactic agents on mechanical properties of regular and nitrified nickeltitanium (Ni-Ti) Bioforce Sentalloy wireswere investigated. Specimens (25×0.508×0.508 mm)were immersed in Elmex gelée, MI Paste Plus and dH2O (control) for 1 hour at 37°C. After immersion, the loading and unloading elastic modulus (E) and yield strength (YS) of ten samples from each groupwere measured with a 3-point bending test in a thermal chamber at 37°C. ANOVA and Games-Howell post-hoc test were used in statistical analysis. The unloading YS of Ni-Ti for Elmex gelée is significantly higher in respect to dH2O (p=0.007). In dH2O, Ni-Ti showed significantly lower results in unloading YS, when compared to nitrified Ni-Ti (p=0.029). Dark discolorations are visible in all tested groups. Elmex gelée affects significantly unloading mechanical properties of regular Ni-Ti wire. MI Paste Plus has no significant effect on mechanical properties of tested wires. © 2014 Taylor & Francis Group, London.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): 3-point bending; Fluoride agents; Loading and unloading; Ni-Ti wire; Nickel titanium; Orthodontic wires; Thermal chamber; Nickel; Unloading; Wire; Mechanical properties
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 200 Department of Engineering Mechanics > 240 Chair for Biomechanics and Ergonomy
Indexed in Web of Science: Yes
Indexed in Current Contents: No
Citations SCOPUS: 1 (19.01.2017.)
Date Deposited: 02 Jun 2015 10:31
Last Modified: 19 Jan 2017 12:36

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