Naslov
Effect of use of antiseptics and fluorides during orthodontic treatment on working properties of nickel-titanium archwires

Autori
Žigante, Martina ; Karlović, Sven ; Jelovica Badovinac, Ivana ; Špalj, Stjepan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
98th European Orthodontic Society Congress 2023 Abstract Book / - Oslo, 2023, 43-43

Skup
98th European Orthodontic Society Congress 2023 Abstract Book

Mjesto i datum
Oslo, Norveška, 11.06.2023. - 15.06.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
NiTi alloy ; flourides ; oral antiseptics ; biomechanics ; elasticity

Sažetak
Aim: To investigate can application of antiseptics and fluorides during orthodontic treatment influence working properties of nickel-titanium (NiTi) archwires. Subjects and methods: Archwires were collected from 18 subjects and compered with-received NiTi alloy wires. Three experimetal groups were formed: (I) subjects conducting regular oral hygiene, (II) subjects that used high concentration fluorides for intensive prophylaxis for a first month ; and (III) subjects that used chlorhexidine in the same manner. Six specimen from every experimental condition, each 2.5 cm long, were used for mechanical three-point bending test in the thermal chamber at 37°C on a universal machine (Model 1125/5500, Instron, USA). Each sample was deflected to 3.1 mm and then dropped to zero deflection at a crosshead speed of 0.0167 mm/s. NiTi alloy archwires (dimensions 0.508×0.508mm) were analised after 3 months of intraoral exposure and compared to as-received NiTi. Elastic modulus, yield strength, springback ratio and modulus of resilience were calculated. Statistical analyses included analysis of variance and Student-Newman- Keuls post-hoc test. Results: Intraoral exposure reduced elastic modulus, yield strength, springback ratio, modulus of resilience, loading and unloading forces of NiTi (p≤0.021). Chlorhexidine mouthwash and gel with high concentration of fluorides did not change the properties more than saliva with regular hygiene. Conclusion: Using antiseptics or high concentration of fluorides during orthodontic treatment does not significantly affect the elasticity of NiTi and would not have clinical implications in changing orthodontic biomechanics.

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

POVEZANOST RADA